# Friday Seller Tools (remote · friday-seller-tools-production.up.railway.app)

Marketplace-seller tools: listing audits, PPC kits, pricing, compliance. Paid via x402 or card.

- Trust score: 51/100 (low)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `friday-seller-tools-production.up.railway.app`: 51/100 (this document), [markdown](https://verifymcp.io/servers/doughyjoeyd-friday-seller-tools/friday-seller-tools-production.md), [page](https://verifymcp.io/servers/doughyjoeyd-friday-seller-tools/friday-seller-tools-production)

## Channel facts

- Endpoint: `https://friday-seller-tools-production.up.railway.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.3.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 78 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 22/100
  - AI-judged instruction clarity (poor).
  - Context-footprint check failed: tool/resource definitions use about 16777 tokens (~215/item across 78 items; 78 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http doughyjoeyd-friday-seller-tools https://friday-seller-tools-production.up.railway.app/mcp
```

### Codex

```toml
[mcp_servers.doughyjoeyd-friday-seller-tools]
url = "https://friday-seller-tools-production.up.railway.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "doughyjoeyd-friday-seller-tools": {
      "type": "remote",
      "url": "https://friday-seller-tools-production.up.railway.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add doughyjoeyd-friday-seller-tools --url https://friday-seller-tools-production.up.railway.app/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  doughyjoeyd-friday-seller-tools:
    url: "https://friday-seller-tools-production.up.railway.app/mcp"
```

### Other

```json
{
  "mcpServers": {
    "doughyjoeyd-friday-seller-tools": {
      "type": "http",
      "url": "https://friday-seller-tools-production.up.railway.app/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 51, −1)

- [functional] Server version: 0.3.9 → 0.3.14
- [functional] New tool “amazon_browse_node_drift”
- [functional] New tool “fba_removal_order_reconciler”
- [functional] New tool “walmart_item_performance_trend”
- [functional] New tool “walmart_buy_box_gap_planner”
- [functional] New tool “fba_storage_fee_verifier”

### 2026-08-02 (score 52, +1)

- [functional] Server version: 0.3.5 → 0.3.9
- [functional] New tool “ebay_promoted_profitability”
- [functional] New tool “fba_aged_inventory_planner”
- [functional] New tool “fba_inventory_ledger_reconciliation”
- [functional] New tool “fba_ledger_balance_checker”
- [functional] New tool “search_query_performance”
- [functional] New tool “walmart_fulfillment_root_cause”

### 2026-07-31 (score 51, +4)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 47, −9)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 56, +8)

- [functional regression] Schema quality: 10840 → 12030
- [functional] Schema quality: poor → good
- [functional] New tool “dim_weight_classifier”
- [functional] New tool “field_limit_validator”
- [functional] New tool “gtin_batch_validator”
- [functional] New tool “margin_parity_checker”
- [functional] New tool “sku_collision_snapshot”
- [functional] New tool “sku_normalizer”

### 2026-07-28 (score 48, +1)

- [functional regression] Schema quality: 9627 → 10840
- [functional] New tool “suppressed_listing_diagnosis”
- [functional] New tool “shipping_template_cost”
- [functional] New tool “seasonal_demand_calendar”
- [functional] New tool “keyword_cannibalization_detector”
- [functional] New tool “customer_question_answer”

### 2026-07-27 (score 47, −5)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 52)

First indexed and scored.

## MCP tools (78)

### `fba_storage_fee_verifier` (~238 tokens)

FBA Monthly Storage Fee Charge Verifier

A deterministic recompute-and-compare that rebuilds each seller-supplied FBA Monthly Storage Fees row from item volume, average on-hand quantity, storage rate, and incentive amount, then ranks arithmetic mismatches and high-cost ASINs for remeasurement or human review — without ever claiming Amazon is wrong. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/monthly-storage-fee-verifier and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_storage_fee_verifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_storage_fee_verifier.

Input parameters:

- `amount_tolerance` (number)
- `high_cost_threshold`
- `rows` (array, required)
- `volume_tolerance` (number)

### `amazon_browse_node_drift` (~214 tokens)

Amazon Browse Node Drift Diff

A deterministic, security-bounded XML diff that compares like-for-like seller-supplied Amazon Browse Tree reports by node ID, then ranks taxonomy changes and flags supplied catalog assignments without touching a listing. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/catalog/browse-node-drift-diff and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_browse_node_drift. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_browse_node_drift.

Input parameters:

- `assignments` (array)
- `baseline` (required)
- `current` (required)
- `marketplace` (string)
- `report_options` (required)

### `title_optimizer` (~162 tokens)

Marketplace Title Optimizer

A deterministic Amazon US, Walmart US, Shopify, or eBay US title recommendation with length and keyword-coverage feedback. PAID SKILL: $0.02 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/title-optimizer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=title_optimizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/title_optimizer.

Input parameters:

- `current_title`
- `product` (required)

### `listing_title_variants` (~179 tokens)

Listing Title A/B Variant Generator

Three deterministic, channel-bounded title drafts—keyword-first, benefit-first, and compact—with keyword coverage and a rationale for each. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/title-variants and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_title_variants. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_title_variants.

Input parameters:

- `current_title`
- `focus_keywords` (array)
- `product` (required)

### `bullet_rewriter` (~197 tokens)

Marketplace Bullet Point Rewriter

A deterministic readability pass over your Amazon US, Walmart US, Shopify, or eBay US bullets—casing, spacing, punctuation, and promotional-phrase removal—with a per-bullet readability score and focus-keyword coverage. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/bullet-rewrite and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=bullet_rewriter. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/bullet_rewriter.

Input parameters:

- `bullets` (array, required)
- `focus_keywords` (array)
- `product` (required)

### `product_description_html` (~189 tokens)

Product Description HTML Formatter

A deterministic formatter that discards supplied markup, escapes every retained character, and rebuilds your copy with a tiny marketplace-specific tag profile—plus a plain-text fallback and exact sanitization counts. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/description-html and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=product_description_html. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/product_description_html.

Input parameters:

- `description` (string, required)
- `feature_highlights` (array)
- `marketplace`

### `category_node_suggester` (~196 tokens)

Marketplace Category / Node Suggester

A deterministic candidate ranker that compares seller-supplied marketplace nodes with verified product facts, showing every match, gap, evidence field, and ambiguous result without pretending to know the live taxonomy. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/category-node-suggestions and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=category_node_suggester. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/category_node_suggester.

Input parameters:

- `candidate_nodes` (array, required)
- `max_suggestions` (integer)
- `product` (required)

### `cross_listing_field_mapper` (~205 tokens)

Cross-Listing Field Mapper

A deterministic planning crosswalk that maps up to fifty seller-supplied field names and exact values into one or two target marketplaces, separating straightforward copy candidates from category-sensitive and unmapped fields. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/cross-listing-field-map and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=cross_listing_field_mapper. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/cross_listing_field_mapper.

Input parameters:

- `category_context`
- `fields` (array, required)
- `source_marketplace` (string, required)
- `target_marketplaces` (array, required)

### `claim_check` (~179 tokens)

Marketplace Claim Check

A deterministic phrase and evidence screen for Amazon US, Walmart US, Shopify, or eBay US copy. PAID SKILL: $0.03 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/claim-check and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=claim_check. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/claim_check.

Input parameters:

- `forbidden_claims` (array)
- `marketplace` (required)
- `text` (string, required)
- `verified_claims` (array)

### `regulated_claim_check` (~206 tokens)

Regulated-Category Prohibited Claims Checker

A deterministic category-profile screen that separates remove-or-escalate claims from evidence-review claims without pretending to verify evidence or marketplace compliance. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/regulated-claim-check and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=regulated_claim_check. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/regulated_claim_check.

Input parameters:

- `bullets` (array)
- `category_profile` (string, required)
- `description`
- `evidence` (array)
- `marketplace`
- `product_name` (string, required)
- `title` (string, required)

### `fba_fbm_cost_comparison` (~197 tokens)

Amazon FBA vs FBM Cost Comparison Worksheet

A deterministic Amazon US cost comparison and XLSX worksheet using only seller-supplied FBA, FBM, product, referral, fixed-cost, and volume inputs. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fulfillment/fba-vs-fbm-costs and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_fbm_cost_comparison. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_fbm_cost_comparison.

Input parameters:

- `marketplace` (string)
- `skus` (array, required)

### `catalog_readiness` (~250 tokens)

Four-Marketplace Catalog Readiness Check

A four-channel readiness report for Amazon US, Walmart US, Shopify, and eBay US from one supplied product record. PAID SKILL: $0.05 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/readiness-check and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=catalog_readiness. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/catalog_readiness.

Input parameters:

- `country_of_origin`
- `ebay_category_id`
- `ebay_fulfillment_policy_id`
- `ebay_merchant_location_key`
- `ebay_payment_policy_id`
- `ebay_return_policy_id`
- `gtin`
- `image_urls` (array)
- `product` (required)
- `quantity` (integer)
- `shopify_product_category`
- `sku` (string, required)
- `walmart_product_type`

### `listing_audit` (~164 tokens)

Marketplace Listing Audit

A channel-aware listing review for Amazon US, Walmart US, Shopify, or eBay US, delivered as structured JSON. PAID SKILL: $0.05 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_audit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_audit.

Input parameters:

- `listing` (required)
- `product` (required)

### `listing_build` (~175 tokens)

Marketplace Listing Builder

A factual title, feature highlights, description, and search terms or tags for Amazon US, Walmart US, Shopify, or eBay US. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listing/build and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_build. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_build.

Input parameters:

- `include_search_terms` (boolean)
- `product` (required)
- `tone` (string)

### `ppc_kit` (~222 tokens)

Amazon PPC Launch Kit

An Amazon advertising planning workbook with AUTO and MANUAL campaign drafts, keyword structure, bids, and safeguards. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-ppc/launch-kit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ppc_kit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ppc_kit.

Input parameters:

- `asin` (string, required)
- `conversion_rate_percent` (number)
- `daily_budget_usd` (number, required)
- `keywords` (array)
- `max_bid_usd`
- `negative_keywords` (array)
- `product` (required)
- `target_acos_percent` (number, required)

### `omnichannel_pack` (~279 tokens)

Omnichannel Product Launch Pack

Four channel-specific listing drafts plus draft-safe upload-preparation files, a readiness workbook, and instructions in one ZIP. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/omnichannel/launch-pack and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=omnichannel_pack. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/omnichannel_pack.

Input parameters:

- `condition` (string)
- `country_of_origin`
- `currency` (string)
- `ebay_category_id`
- `ebay_fulfillment_policy_id`
- `ebay_marketplace_id` (string)
- `ebay_merchant_location_key`
- `ebay_payment_policy_id`
- `ebay_return_policy_id`
- `gtin`
- `image_urls` (array)
- `product` (required)
- `quantity` (integer)
- `shopify_product_category`
- `sku` (string, required)
- `walmart_product_type`

### `marketplace_ads_kit` (~234 tokens)

Marketplace Ads Launch Kit

A draft or paused advertising plan for Amazon, Walmart, Shopify external acquisition, or eBay Promoted Listings. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-ads/launch-kit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=marketplace_ads_kit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/marketplace_ads_kit.

Input parameters:

- `conversion_rate_percent` (number)
- `daily_budget_usd` (number, required)
- `item_id` (string, required)
- `keywords` (array)
- `max_ad_rate_percent`
- `max_bid_usd`
- `negative_keywords` (array)
- `product` (required)
- `target_acos_percent` (number, required)

### `marketplace_image_brief` (~234 tokens)

Marketplace Product Image Brief

A prioritized product shot list with technical specifications, factual overlays, alt text, asset gaps, and compliance checks. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-images/brief and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=marketplace_image_brief. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/marketplace_image_brief.

Input parameters:

- `available_assets` (array)
- `avoid` (array)
- `brand_colors` (array)
- `image_count` (integer)
- `include_alt_text` (boolean)
- `included_items` (array)
- `must_show` (array)
- `objective` (string)
- `product` (required)
- `variants` (array)

### `review_response` (~192 tokens)

Marketplace Review Response Writer

A concise response draft plus concern routing and specialist-review flags for Amazon US, Walmart US, Shopify, or eBay US reviews. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/reviews/response-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=review_response. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/review_response.

Input parameters:

- `include_support_invitation` (boolean)
- `marketplace` (required)
- `rating` (integer, required)
- `review_text` (string, required)
- `tone` (string)

### `a_plus_content_brief` (~207 tokens)

Amazon A+ Content Brief

A deterministic Amazon A+ planning brief with grounded draft copy, image direction, alt text, asset gaps, and claim-review steps. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-a-plus/content-brief and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=a_plus_content_brief. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/a_plus_content_brief.

Input parameters:

- `available_assets` (array)
- `avoid` (array)
- `brand_tone` (string)
- `module_count` (integer)
- `objective` (string)
- `product` (required)

### `keyword_gap` (~212 tokens)

Marketplace Keyword Gap Analyzer

A deterministic keyword gap map between your listing copy and up to three competitor listings you supply, with usage counts, priority, and placement guidance. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/keyword-gap and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=keyword_gap. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/keyword_gap.

Input parameters:

- `competitor_brands` (array)
- `competitor_listings` (array, required)
- `ignore_terms` (array)
- `include_phrases` (boolean)
- `marketplace`
- `max_gap_terms` (integer)
- `your_listing` (required)

### `keyword_cannibalization_detector` (~263 tokens)

Marketplace Keyword Cannibalization Detector

A deterministic two-listing overlap map with exact occurrences, fields, seller-designated primary terms, transparent signal levels, unique terms, and review actions—without pretending shared copy proves search cannibalization. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/keyword-cannibalization and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=keyword_cannibalization_detector. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/keyword_cannibalization_detector.

Input parameters:

- `ignore_terms` (array)
- `include_phrases` (boolean)
- `listing_a` (required)
- `listing_a_label` (string)
- `listing_b` (required)
- `listing_b_label` (string)
- `marketplace`
- `max_shared_terms` (integer)
- `primary_terms_a` (array)
- `primary_terms_b` (array)

### `amazon_backend_search_terms` (~206 tokens)

Amazon Backend Search-Term Optimizer

A deterministic Amazon US backend search-term draft that ranks seller-scored candidates, removes repeated and excluded words, and enforces the exact UTF-8 byte budget. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/listings/backend-search-terms and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=amazon_backend_search_terms. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/amazon_backend_search_terms.

Input parameters:

- `byte_budget` (integer)
- `candidate_terms` (array, required)
- `excluded_terms` (array)
- `product` (required)
- `visible_copy` (array)

### `image_alt_text_pack` (~190 tokens)

Marketplace Image Alt Text + SEO Caption Pack

A deterministic alt-text, SEO-caption, and filename pack for up to 12 supplied marketplace gallery image descriptions. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-images/alt-text-pack and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=image_alt_text_pack. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/image_alt_text_pack.

Input parameters:

- `alt_text_max_characters` (integer)
- `caption_max_characters` (integer)
- `images` (array, required)
- `product` (required)

### `pricing_what_if` (~222 tokens)

Marketplace Price Change Break-Even Analyzer

A deterministic contribution-margin and break-even comparison of up to eight candidate prices against your current price and costs. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/break-even-what-if and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=pricing_what_if. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/pricing_what_if.

Input parameters:

- `candidate_prices` (array, required)
- `current_price` (number, required)
- `fixed_fee_per_unit` (number)
- `marketplace`
- `monthly_units` (integer, required)
- `product_name` (string, required)
- `referral_fee_percent` (number)
- `unit_cost` (number, required)

### `promotion_profit_guard` (~214 tokens)

Marketplace Promotion Profit Guard

A deterministic comparison of up to eight promotion scenarios using your discount, expected units, referral, fulfillment, redemption, and fixed fees. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/promotion-profit-guard and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=promotion_profit_guard. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/promotion_profit_guard.

Input parameters:

- `fulfillment_cost_per_unit` (number)
- `list_price` (number, required)
- `marketplace`
- `product_name` (string, required)
- `referral_fee_percent` (number)
- `scenarios` (array, required)
- `unit_cost` (number, required)

### `deal_roi_calculator` (~289 tokens)

Coupon and Deal Incremental ROI Calculator

A deterministic baseline-versus-deal calculator that separates unit lift, contribution change, promotion investment, incremental ROI, and the discounted volume needed to match baseline profit. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/deal-roi and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=deal_roi_calculator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/deal_roi_calculator.

Input parameters:

- `baseline_units` (integer, required)
- `campaign_spend` (number)
- `comparable_period_label` (string, required)
- `discount_percent` (number, required)
- `discounted_units` (integer, required)
- `fee_per_discounted_unit` (number)
- `fixed_deal_fee` (number)
- `fulfillment_cost_per_unit` (number)
- `list_price` (number, required)
- `marketplace`
- `other_variable_cost_per_unit` (number)
- `product_name` (string, required)
- `referral_fee_percent` (number)
- `unit_cost` (number, required)

### `compliance_scan` (~193 tokens)

Marketplace Listing Compliance Scanner

A deterministic scan of your title, bullets, and description against a fixed list of restricted-claim phrase rules, returning each match with severity and a safer rewrite. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/compliance-scan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=compliance_scan. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/compliance_scan.

Input parameters:

- `bullets` (array)
- `description`
- `marketplace`
- `product_name` (string, required)
- `title` (string, required)

### `bulk_csv_audit` (~186 tokens)

Bulk CSV Marketplace Listing Audit

A deterministic audit of up to 100 seller-supplied CSV rows for identifiers, duplicate SKUs, conservative channel limits, spreadsheet-formula triggers, and restricted-phrase matches. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/bulk-csv-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=bulk_csv_audit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/bulk_csv_audit.

Input parameters:

- `csv_text` (string, required)
- `marketplace`

### `brand_name_screen` (~199 tokens)

Brand Name Risk Screener

A deterministic collision and wording screen for up to 20 candidate brand names against customer-supplied known names, forbidden terms, category wording, and marketplace references. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/brands/name-screen and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=brand_name_screen. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/brand_name_screen.

Input parameters:

- `candidate_names` (array, required)
- `forbidden_terms` (array)
- `known_names` (array)
- `marketplace`
- `product_category` (string, required)

### `holiday_copy_refresh` (~239 tokens)

Holiday Marketplace Copy Refresher

A reversible seasonal listing-copy and campaign-caption draft grounded in current copy, seller-supplied seasonal context, an optional verified offer, and a removal date. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/holiday-copy-refresh and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=holiday_copy_refresh. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/holiday_copy_refresh.

Input parameters:

- `campaign_end_date` (string, required)
- `current_bullets` (array)
- `current_description` (string)
- `current_title` (string, required)
- `marketplace`
- `occasion` (string, required)
- `product_name` (string, required)
- `seasonal_context` (array, required)
- `tone` (string)
- `verified_offer`

### `competitor_change_monitor` (~203 tokens)

Competitor Listing Change Monitor Spec

A deterministic comparison of two seller-supplied competitor listing snapshots, with field-level changes and a bounded monitoring specification. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/competitors/change-monitor-spec and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=competitor_change_monitor. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/competitor_change_monitor.

Input parameters:

- `after` (required)
- `before` (required)
- `cadence` (string)
- `competitor_label` (string, required)
- `listing_identifier` (string, required)
- `marketplace`
- `watch_fields` (array)

### `email_flow_pack` (~188 tokens)

Opt-In Customer Email Flow Pack

A deterministic three-message plain-text sequence grounded in seller-supplied product facts for an owned opt-in audience. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketing/email-flow-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=email_flow_pack. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/email_flow_pack.

Input parameters:

- `audience_basis` (string, required)
- `campaign_goal` (string, required)
- `product` (required)
- `sender_name` (string, required)
- `tone` (string)

### `walmart_rich_media_brief` (~212 tokens)

Walmart Rich Media Content Brief

A deterministic three-to-five-block Walmart planning brief with grounded copy, image direction, alt text, factual basis, and asset gaps. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/rich-media-brief and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_rich_media_brief. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_rich_media_brief.

Input parameters:

- `available_assets` (array)
- `avoid` (array)
- `brand_tone` (string)
- `module_count` (integer)
- `objective` (string)
- `product` (required)

### `ebay_item_specifics` (~192 tokens)

eBay Item Specifics Optimizer

A deterministic coverage report for seller-supplied eBay category aspects, with grounded value suggestions and required-field gaps. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/item-specifics and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_item_specifics. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_item_specifics.

Input parameters:

- `current_specifics` (array)
- `product` (required)
- `recommended_aspects` (array)
- `required_aspects` (array, required)

### `variation_family_plan` (~179 tokens)

Marketplace Variation Family Planner

A deterministic review of two to fifty supplied SKUs against a one-to-three-attribute variation theme. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/variation-family-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=variation_family_plan. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/variation_family_plan.

Input parameters:

- `marketplace` (required)
- `parent_label` (string, required)
- `theme_attributes` (array, required)
- `variants` (array, required)

### `return_reason_analysis` (~189 tokens)

Marketplace Return Reason Analyzer

A deterministic clustering of up to two hundred supplied return-reason lines into ranked root-cause buckets with prioritized fix actions. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/quality/return-reason-analysis and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=return_reason_analysis. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/return_reason_analysis.

Input parameters:

- `marketplace`
- `product_name` (string, required)
- `returns` (array, required)
- `sku`
- `units_sold`

### `restock_plan` (~207 tokens)

Inventory Restock and Stockout Risk Planner

A deterministic reorder plan for up to one hundred supplied SKUs: days of cover, reorder point, order-within window, and a suggested quantity rounded to your case pack. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/inventory/restock-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=restock_plan. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/restock_plan.

Input parameters:

- `default_lead_time_days` (integer)
- `marketplace`
- `review_period_days` (integer)
- `skus` (array, required)
- `target_cover_days` (integer)

### `listing_appeal` (~225 tokens)

Suppressed Listing Appeal Draft

A bounded appeal draft built only from the marketplace notice you paste and the corrective steps you confirm you completed, with an evidence checklist and blocking gaps. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/appeal-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=listing_appeal. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/listing_appeal.

Input parameters:

- `corrective_actions_taken` (array)
- `evidence_available` (array)
- `listing_identifier` (string, required)
- `marketplace`
- `notice_text` (string, required)
- `preventive_actions_taken` (array)
- `suppression_reason` (required)
- `tone` (string)

### `return_policy_generator` (~258 tokens)

Marketplace Return Policy Generator

A deterministic assembler that turns your return window, shipping-payer choice, restocking fee, refund methods, conditions, and non-returnable items into ready-to-review policy copy for Amazon US, Walmart US, Shopify, or eBay US. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/policies/return-policy and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=return_policy_generator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/return_policy_generator.

Input parameters:

- `condition_requirements` (array)
- `contact_instructions` (string)
- `marketplace`
- `non_returnable_items` (array)
- `refund_methods` (array, required)
- `restocking_fee_percent` (number)
- `return_window_days` (integer, required)
- `store_name` (string, required)
- `who_pays_return_shipping` (string, required)

### `review_request_templater` (~267 tokens)

Review-Request Compliant Message Templater

A deterministic templater that assembles rating-neutral, incentive-free review-request messages for Buyer-Seller Messaging, the Request-a-Review button, or a package insert, and scans any custom note you supply against a fixed list of prohibited patterns (incentives, positive-rating steering, review gating, external links, pressure, and removal requests). PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/customers/review-request-templates and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=review_request_templater. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/review_request_templater.

Input parameters:

- `brand_name` (string)
- `channel` (string)
- `custom_note` (string)
- `include_support_offer` (boolean)
- `marketplace`
- `product_name` (string, required)
- `tone` (string)
- `variant_count` (integer)

### `reorder_point_calculator` (~287 tokens)

Inventory Reorder-Point and Safety-Stock Calculator

A deterministic calculator that turns your sales velocity, lead time, demand and lead-time variability, and target service level into a reorder point and a statistically-sized safety stock, then compares it with your on-hand and inbound units to say whether to reorder now. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/inventory/reorder-point and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=reorder_point_calculator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/reorder_point_calculator.

Input parameters:

- `average_daily_sales` (number, required)
- `current_on_hand_units` (integer)
- `demand_std_dev_daily` (number)
- `inbound_units` (integer)
- `lead_time_days` (number, required)
- `lead_time_std_dev_days` (number)
- `marketplace`
- `minimum_order_quantity` (integer)
- `product_name` (string, required)
- `service_level_percent` (number)
- `sku` (string)
- `unit_cost` (number)

### `bundle_pricing_optimizer` (~280 tokens)

Bundle and Multipack Pricing Optimizer

A deterministic price-scenario calculator that compares bundle sizes and candidate discounts using your single-unit price, product and fulfillment costs, fixed order fee, percentage fee, and target contribution margin. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/bundle-multipack-optimizer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=bundle_pricing_optimizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/bundle_pricing_optimizer.

Input parameters:

- `bundle_sizes` (array)
- `candidate_discount_percents` (array)
- `fixed_order_fee_usd` (number)
- `fulfillment_cost_per_unit_usd` (number)
- `marketplace`
- `percentage_fee_rate_percent` (number)
- `product_cost_per_unit_usd` (number, required)
- `product_name` (string, required)
- `single_unit_price_usd` (number, required)
- `sku` (string)
- `target_contribution_margin_percent` (number)

### `image_compliance_precheck` (~385 tokens)

Marketplace Main-Image Compliance Pre-Check

A deterministic, text-only preflight that applies a dated Amazon US, Walmart US, Shopify, or eBay US image profile to the file metadata and composition observations you declare, returning sourced findings and concrete fixes without downloading or inspecting an image. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/images/compliance-precheck and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=image_compliance_precheck. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/image_compliance_precheck.

Input parameters:

- `accurately_represents_item` (boolean)
- `animated` (boolean)
- `background` (string, required)
- `file_format` (string, required)
- `file_size_mb` (number, required)
- `has_added_border` (boolean)
- `has_added_text_overlay` (boolean)
- `has_logo_or_graphic_overlay` (boolean)
- `has_promotional_claims` (boolean)
- `has_retailer_branding` (boolean)
- `has_watermark` (boolean)
- `height_pixels` (integer, required)
- `is_actual_product_photo` (boolean)
- `is_placeholder` (boolean)
- `is_stock_photo` (boolean)
- `item_condition` (string)
- `marketplace` (required)
- `product_fill_percent`
- `product_name` (string, required)
- `shows_multiple_product_views` (boolean)
- `shows_unincluded_props` (boolean)
- `sku` (string)
- `width_pixels` (integer, required)

### `brand_story_generator` (~241 tokens)

Storefront and Brand-Story Copy Generator

A deterministic copy assembler that turns your brand summary, origin, audience, categories, and factual pillars into hero, story, pillar, and call-to-action blocks with an exact source ledger and fixed risky-phrase hold. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/brand/storefront-story and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=brand_story_generator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/brand_story_generator.

Input parameters:

- `audience` (string, required)
- `brand_name` (string, required)
- `brand_summary` (string, required)
- `call_to_action` (string)
- `marketplace` (required)
- `origin_story` (string, required)
- `pillars` (array, required)
- `product_categories` (array, required)
- `tone` (string)

### `seasonal_demand_calendar` (~235 tokens)

Marketplace Seasonal Demand Calendar

A deterministic 12-month planning calendar built from a transparent US-retail seasonality knowledge base for your category archetype, with per-month demand tendencies, retail events, and order-by and listing-refresh windows computed from your supplier lead time. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/planning/seasonal-demand-calendar and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=seasonal_demand_calendar. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/seasonal_demand_calendar.

Input parameters:

- `category` (string, required)
- `extra_peak_months` (array)
- `lead_time_days` (integer)
- `listing_refresh_lead_days` (integer)
- `marketplace`
- `product_name` (string, required)

### `suppressed_listing_diagnosis` (~256 tokens)

Suppressed Listing Diagnosis Checklist

Deterministic triage of seller-supplied listing status, notice text, observed symptoms, and copy into ranked diagnostic tracks, exact checks, evidence to gather, and a bounded action sequence. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/suppression-diagnosis and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=suppressed_listing_diagnosis. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/suppressed_listing_diagnosis.

Input parameters:

- `bullets` (array)
- `description` (string)
- `evidence_available` (array)
- `listing_status` (string, required)
- `marketplace`
- `notice_text` (string)
- `observed_signals` (array)
- `product_name` (string, required)
- `recent_changes` (array)
- `title` (string)

### `customer_question_answer` (~211 tokens)

Marketplace Customer Question Answer Drafter

A deterministic answer draft that classifies one supplied customer question, ranks explicitly seller-verified facts by relevance, and withholds risky or instruction-shaped facts for review. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/customers/question-answer-draft and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=customer_question_answer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/customer_question_answer.

Input parameters:

- `customer_question` (string, required)
- `marketplace`
- `max_facts_in_answer` (integer)
- `product_name` (string, required)
- `tone` (string)
- `verified_facts` (array, required)

### `shipping_template_cost` (~248 tokens)

Marketplace Shipping Template Cost Estimator

Transparent per-zone and monthly shipping arithmetic from seller-supplied weights, carrier rates, surcharges, packaging cost, buyer charges, fee rate, order mix, and expected orders. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/shipping/template-cost-estimate and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=shipping_template_cost. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/shipping_template_cost.

Input parameters:

- `actual_weight_lb` (number, required)
- `dimensional_weight_lb`
- `expected_monthly_orders` (integer, required)
- `marketplace`
- `marketplace_fee_percent_on_shipping` (number)
- `packaging_cost_per_order_usd` (number)
- `round_billable_weight_up` (boolean)
- `template_name` (string, required)
- `zones` (array, required)

### `gtin_batch_validator` (~192 tokens)

GTIN / UPC / EAN Batch Validator

A deterministic batch check for ASCII digits, GTIN-8/12/13/14 length, duplicates, and GS1 modulo-10 check digits, with a corrected digit only when the supplied code is structurally salvageable. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/identifiers/gtin-batch-validate and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=gtin_batch_validator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/gtin_batch_validator.

Input parameters:

- `codes` (array, required)

### `field_limit_validator` (~213 tokens)

Per-Field Character / Byte-Limit Validator

A deterministic length check of title, bullet, description, and search-term fields against documented Amazon US, Walmart US, Shopify, and eBay US caps, with byte-vs-character counts and a truncation preview cut at the limit. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/listings/field-limit-validate and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=field_limit_validator. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/field_limit_validator.

Input parameters:

- `bullets`
- `description`
- `marketplace`
- `overrides` (array)
- `search_terms`
- `title`

### `dim_weight_classifier` (~228 tokens)

Dimensional-Weight and Shipping Size-Tier Classifier

A deterministic batch classifier that computes billable and dimensional weight from your divisor and assigns each item to your tier table, flagging every dimension within a margin of the next-more-expensive tier. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/shipping/dim-weight-classify and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=dim_weight_classifier. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/dim_weight_classifier.

Input parameters:

- `dim_divisor` (number, required)
- `dimension_unit` (string)
- `items` (array, required)
- `margin_percent` (number)
- `round_dim_weight_up` (boolean)
- `tiers` (array, required)
- `weight_unit` (string)

### `sku_normalizer` (~202 tokens)

SKU Naming-Convention Normalizer

A deterministic batch transform that applies your ASCII case, separator, and length convention, then finds same-batch and existing-SKU collisions and drafts bounded unique alternatives. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/catalog/sku-normalize and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=sku_normalizer. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/sku_normalizer.

Input parameters:

- `existing_skus` (array)
- `items` (array, required)
- `letter_case` (string)
- `max_length` (integer)
- `separator` (string)

### `margin_parity_checker` (~257 tokens)

Multi-Channel Net-Margin Parity Checker

A deterministic comparison of one SKU across two to four seller-supplied price, volume, percentage-fee, fulfillment, shipping, variable-cost, and period-fixed-cost stacks, with baseline-margin what-if prices and explicit floor, MAP-reference, and price-parity flags. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/pricing/multi-channel-margin-parity and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=margin_parity_checker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/margin_parity_checker.

Input parameters:

- `baseline_channel` (required)
- `channels` (array, required)
- `minimum_advertised_price`
- `price_parity_tolerance_percent` (number)
- `product_cost_per_unit` (number, required)
- `product_name` (string, required)
- `seller_price_floor`
- `sku` (string, required)

### `search_term_spend_waste` (~257 tokens)

Amazon Search-Term Spend Waste Miner

A deterministic Amazon Sponsored Products report analysis that classifies supplied rows for negative-exact, harvest-exact, high-ACoS, or monitor review and surfaces repeated negative-phrase tokens without changing a campaign. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon-ads/search-term-spend-waste and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=search_term_spend_waste. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/search_term_spend_waste.

Input parameters:

- `currency_code` (string)
- `harvest_min_orders` (integer)
- `negative_min_clicks` (integer)
- `negative_min_spend` (number)
- `phrase_min_rows` (integer)
- `protected_terms` (array)
- `rows` (array, required)
- `target_acos_percent` (number)

### `search_query_performance` (~217 tokens)

Amazon Search Query Performance Funnel Leak Analyzer

A deterministic Brand Analytics SQP transform that ranks seller-supplied ASIN/query rows by click, cart-add, or purchase rate gaps, preserving Amazon query totals and calculating transparent ASIN shares without changing a listing. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/brand-analytics/search-query-performance and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=search_query_performance. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/search_query_performance.

Input parameters:

- `cart_rate_target_percent` (number)
- `click_rate_target_percent` (number)
- `purchase_rate_target_percent` (number)
- `rows` (array, required)

### `fba_aged_inventory_planner` (~204 tokens)

FBA Aged Inventory Action Break-Even Planner

A deterministic break-even model that ranks seller-supplied aged FBA units by projected surcharge exposure and scores four dispositions as transparent per-unit net profit or loss, so a human decides before another age tier lands. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/aged-inventory-break-even and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_aged_inventory_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_aged_inventory_planner.

Input parameters:

- `horizon_months` (integer)
- `rows` (array, required)

### `fba_inventory_ledger_reconciliation` (~211 tokens)

FBA Inventory Ledger Reconciliation Exception Finder

A deterministic control check for seller-supplied FBA Inventory Ledger summary and detail rows that validates the normalized balance equation, joins movements by inventory key, and ranks clear exceptions without claiming a loss or reimbursement. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/inventory-ledger-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_inventory_ledger_reconciliation. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_inventory_ledger_reconciliation.

Input parameters:

- `detail_rows` (array, required)
- `ranking_basis` (string)
- `summary_rows` (array, required)

### `fba_reimbursement_tracker` (~203 tokens)

FBA Reimbursement Deadline + Evidence Tracker

A deterministic organizer for seller-supplied FBA lost, damaged, customer-return, and removal events using a dated reimbursement-window profile, with earliest/latest dates and missing suggested evidence but no eligibility claim. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/reimbursement-tracker and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_reimbursement_tracker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_reimbursement_tracker.

Input parameters:

- `as_of_date` (string, required)
- `deadline_warning_days` (integer)
- `events` (array, required)

### `payout_reconciliation` (~223 tokens)

Marketplace Payout Reconciliation Analyzer

A deterministic reconciliation of seller-normalized Amazon Flat File V2 or eBay transaction rows against expected order economics and a supplied bank deposit, without accessing either account. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/marketplace-finance/payout-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=payout_reconciliation. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/payout_reconciliation.

Input parameters:

- `currency_code` (string)
- `deposited_amount` (number, required)
- `expected_orders` (array, required)
- `marketplace` (string, required)
- `match_tolerance` (number)
- `settlement_components` (array, required)
- `settlement_id` (string, required)

### `ebay_seller_standards` (~234 tokens)

eBay Seller-Standards Defect Projection

A deterministic projection of your eBay defect rate from seller-supplied transaction references and defect flags, measured against your own target, without touching any eBay account. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/seller-standards-defect-projection and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_seller_standards. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_seller_standards.

Input parameters:

- `evaluation_period_label` (string, required)
- `marketplace` (string)
- `target_defect_rate_percent` (number, required)
- `transactions` (array, required)
- `upcoming_expected_defects` (integer)
- `upcoming_transactions` (integer)

### `fba_inbound_root_cause` (~209 tokens)

FBA Inbound Problem + Fee Root-Cause Analyzer

A deterministic grouping of seller-supplied FBA inbound-performance rows by problem type, shipment, SKU, coaching level, and fee, ranking repeat causes and drafting a prevention checklist, without touching any Amazon account. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/inbound-root-cause and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_inbound_root_cause. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_inbound_root_cause.

Input parameters:

- `marketplace` (string)
- `records` (array, required)
- `report_label` (string, required)

### `fba_stranded_inventory_recovery` (~227 tokens)

FBA Stranded Inventory Recovery Queue

A deterministic recovery-review queue from seller-normalized FBA Stranded Inventory rows, ordered by supplied auto-removal urgency and quantity with reason, primary action, and listed value retained—without touching Seller Central. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/stranded-inventory-recovery and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_stranded_inventory_recovery. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_stranded_inventory_recovery.

Input parameters:

- `as_of_date` (string, required)
- `currency_code` (string)
- `marketplace` (string)
- `records` (array, required)
- `report_label` (string, required)

### `fba_removal_order_reconciler` (~241 tokens)

FBA Removal Order Exception Reconciler

A deterministic reconciliation of seller-normalized FBA removal-order rows: balance requested units against cancelled, disposed, shipped, and in-process states, then rank quantity mismatches, status conflicts, and stale work without touching Seller Central. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/removal-order-reconciliation and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_removal_order_reconciler. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_removal_order_reconciler.

Input parameters:

- `as_of_date` (string, required)
- `currency_code` (string)
- `marketplace` (string)
- `records` (array, required)
- `report_label` (string, required)
- `stale_after_days` (integer)

### `fba_fee_discrepancy_audit` (~274 tokens)

FBA Dimension + Fee Preview Discrepancy Audit

A deterministic audit comparing seller-supplied FBA Fee Preview dimensions, weight, size tier, and estimated fees with the seller's own package measurements and target margin, ranking SKUs that merit remeasurement by fee impact—without touching Seller Central or claiming Amazon is wrong. PAID SKILL: $1.00 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/fee-discrepancy-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=fba_fee_discrepancy_audit. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/fba_fee_discrepancy_audit.

Input parameters:

- `currency_code` (string)
- `dimension_tolerance_pct` (number)
- `dimension_unit` (string)
- `marketplace` (string)
- `records` (array, required)
- `report_label` (string, required)
- `weight_tolerance_pct` (number)
- `weight_unit` (string)

### `walmart_listing_quality_ranker` (~236 tokens)

Walmart Listing Quality Opportunity Ranker

A deterministic within-batch ranker for seller-normalized Walmart Item Listing Quality rows, combining supplied issue impact, component-score gaps, 30-day page views, conversion, GMV, and Customer Favorite status without touching a listing. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/listing-quality-opportunity-ranker and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_listing_quality_ranker. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_listing_quality_ranker.

Input parameters:

- `as_of_date` (string, required)
- `currency_code` (string)
- `marketplace` (string)
- `records` (array, required)
- `report_label` (string, required)
- `target_conversion_rate_percent` (number, required)

### `walmart_buy_box_gap_planner` (~223 tokens)

Walmart Buy Box Margin-Safe Gap Planner

Model the observed Walmart delivered-price gap against seller-supplied product, fulfillment, fee, and contribution-floor economics, then separate full-match, partial-only, and floor-blocked rows without touching a price. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/buy-box-margin-gap-plan and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_buy_box_gap_planner. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_buy_box_gap_planner.

Input parameters:

- `as_of_date` (string, required)
- `currency_code` (string)
- `marketplace` (string)
- `records` (array, required)
- `report_label` (string, required)

### `walmart_item_performance_trend` (~246 tokens)

Walmart Item Performance Trend + Leakage Ranker

A deterministic equal-period comparison of seller-supplied Walmart Item Performance metrics, separating observed traffic, conversion, commission, cancellation, refund, GMV, and net changes without inventing a cause. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/item-performance-trend and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_item_performance_trend. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_item_performance_trend.

Input parameters:

- `baseline_end_date` (string, required)
- `baseline_start_date` (string, required)
- `currency_code` (string)
- `current_end_date` (string, required)
- `current_start_date` (string, required)
- `marketplace` (string)
- `records` (array, required)
- `report_label` (string, required)

### `ebay_traffic_funnel` (~248 tokens)

eBay Traffic Funnel Bottleneck Analyzer

Turn seller-normalized eBay Traffic rows into a high-volume-first review queue: separate impression-to-view gaps from view-to-transaction gaps against your targets, with no account access or listing edits. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/traffic-funnel-bottleneck-analyzer and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_traffic_funnel. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_traffic_funnel.

Input parameters:

- `marketplace` (string)
- `records` (array, required)
- `report_end_date` (string, required)
- `report_label` (string, required)
- `report_start_date` (string, required)
- `target_click_through_rate_percent` (number, required)
- `target_sales_conversion_rate_percent` (number, required)

### `ebay_promoted_profitability` (~252 tokens)

eBay Promoted Listings Profitability Auditor

A deterministic audit of seller-supplied eBay promoted campaign, listing, keyword, or search-query rows that combines attribution with supplied unit economics and ranks zero-sale spend, losses, and thin headroom. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/ebay/promoted-listings-profitability-audit and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ebay_promoted_profitability. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ebay_promoted_profitability.

Input parameters:

- `currency_code` (string)
- `low_headroom_percent` (number)
- `marketplace` (string)
- `report_end_date` (string, required)
- `report_label` (string, required)
- `report_level` (string, required)
- `report_start_date` (string, required)
- `rows` (array, required)

### `walmart_fulfillment_root_cause` (~226 tokens)

Walmart Fulfillment Performance Root-Cause Queue

A deterministic, non-PII ranker for seller-normalized Walmart fulfillment-performance aggregates across seven metrics, with seller-review buckets and repeat driver groups by SKU, carrier, method, and location. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/walmart/fulfillment-performance-root-cause and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=walmart_fulfillment_root_cause. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/walmart_fulfillment_root_cause.

Input parameters:

- `as_of_date` (string, required)
- `marketplace` (string)
- `report_label` (string, required)
- `report_window_days` (integer, required)
- `rows` (array, required)

### `ship_by_risk_queue` (~208 tokens)

Multi-Marketplace Ship-By Risk Queue

Combine minimal, non-PII Amazon, Walmart, and eBay unshipped lines into one earliest-deadline-first queue with exact time remaining, overdue state, and risk-window totals—without touching an order. PAID SKILL: $0.50 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/orders/ship-by-risk-queue and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=ship_by_risk_queue. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/ship_by_risk_queue.

Input parameters:

- `as_of_at` (string, required)
- `records` (array, required)
- `risk_window_hours` (integer)

### `competitor_research` (~186 tokens)

Competitor Product Listing Extractor

An isolated, read-only extraction of public Amazon, Walmart, eBay, or brand-site product fields with source links and confidence scores. PAID SKILL: $0.25 USD per call; this server never runs paid work for free, and calling this tool returns payment instructions only. Pay per call with x402 (POST https://friday-seller-tools-production.up.railway.app/v1/competitors/research and settle the 402 challenge in USDC) or buy with a card at https://friday-seller-tools-production.up.railway.app/buy?service=competitor_research. Free sample output: https://friday-seller-tools-production.up.railway.app/v1/examples/competitor_research.

Input parameters:

- `marketplace`
- `max_results` (integer)
- `mode` (required)
- `product_url` (string, required)

### `marketplace_listing_copy_checker` (~87 tokens)

Marketplace Listing Copy Checker

Measure listing copy fields and flag repeated terms for human review. This does not validate marketplace policy or category limits. FREE TOOL: $0.00 USD; no payment is required and the result runs inline.

Input parameters:

- `description` (string)
- `feature_highlights` (array)
- `marketplace`
- `search_terms` (string)
- `title` (string)

### `amazon_backend_search_term_byte_checker` (~91 tokens)

Amazon Backend Search-Term Byte Checker

Count the exact UTF-8 bytes of a supplied Amazon backend search-term field against the 250-byte budget and flag repeated, already-visible, and risky terms for human review. This does not validate marketplace policy or indexing. FREE TOOL: $0.00 USD; no payment is required and the result runs inline.

Input parameters:

- `search_terms` (string, required)
- `visible_copy` (string)

### `marketplace_upload_starter_pack` (~51 tokens)

Marketplace Upload Starter Pack

Generate a blank, preparation-only ZIP of marketplace upload templates. It does not publish or modify seller accounts. FREE TOOL: $0.00 USD; no payment is required and the result runs inline.

### `sku_collision_snapshot` (~98 tokens)

SKU Collision Snapshot

Normalize 2–50 supplied SKU strings under one case, separator, and length convention and report post-normalization collision groups. It reads no account, checks no external catalog, and changes nothing. FREE TOOL: $0.00 USD; no payment is required and the result runs inline.

Input parameters:

- `letter_case` (string)
- `max_length` (integer)
- `separator` (string)
- `skus` (array, required)

### `fba_ledger_balance_checker` (~156 tokens)

FBA Inventory Ledger Balance Checker

Evaluate one seller-supplied FBA Inventory Ledger summary row against the normalized unit equation and report the exact difference. It reads no account, stores no quantities, and does not establish loss or eligibility. FREE TOOL: $0.00 USD; no payment is required and the result runs inline.

Input parameters:

- `adjustments_units` (integer)
- `customer_returns_units` (integer)
- `ending_units` (integer, required)
- `other_events_units` (integer)
- `receipts_units` (integer)
- `removals_units` (integer)
- `shipments_units` (integer)
- `starting_units` (integer, required)
- `transfers_in_units` (integer)
- `transfers_out_units` (integer)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/doughyjoeyd-friday-seller-tools/friday-seller-tools-production#diagnostics

## Score history

- 2026-08-03: 51
- 2026-08-02: 52
- 2026-08-01: 51
- 2026-07-31: 51
- 2026-07-30: 47
- 2026-07-29: 56
- 2026-07-28: 48
- 2026-07-27: 47
- 2026-07-26: 52

## Links

- Remote endpoint: https://friday-seller-tools-production.up.railway.app/mcp
- Repository: https://github.com/DoughyJoeyD/friday-seller-tools
- Website: https://friday-seller-tools-production.up.railway.app/
- Changelog RSS feed: https://verifymcp.io/servers/doughyjoeyd-friday-seller-tools/friday-seller-tools-production/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/doughyjoeyd-friday-seller-tools/friday-seller-tools-production/changelog.json
- HTML version of this page: https://verifymcp.io/servers/doughyjoeyd-friday-seller-tools/friday-seller-tools-production