# SupplySlate (remote · mcp.supplyslate.com)

B2B supply network for buyer-owned agents to source requirements and receive verified offers.

- Trust score: 71/100 (medium)
- Change this week: +9
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-17

## Components

- remote · `mcp.supplyslate.com`: 71/100 (this document), [markdown](https://verifymcp.io/servers/com-supplyslate-sourcing/mcp.md), [page](https://verifymcp.io/servers/com-supplyslate-sourcing/mcp)

## Channel facts

- Endpoint: `https://mcp.supplyslate.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-08-17.

- **Endpoint Security**: 69/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 75/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 3694 tokens (~67/item across 55 items; 55 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 37/100
  - Stability observed for 11 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 74/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 9% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### Claude

```bash
claude mcp add --transport http com-supplyslate-sourcing https://mcp.supplyslate.com/mcp
```

### Codex

```toml
[mcp_servers.com-supplyslate-sourcing]
url = "https://mcp.supplyslate.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-supplyslate-sourcing": {
      "type": "remote",
      "url": "https://mcp.supplyslate.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-supplyslate-sourcing --url https://mcp.supplyslate.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-supplyslate-sourcing:
    url: "https://mcp.supplyslate.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "com-supplyslate-sourcing": {
      "type": "http",
      "url": "https://mcp.supplyslate.com/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.

### 2026-08-17 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-15 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-14 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-11 (score 68, +6)

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

### 2026-08-10 (score 62, +3)

- [security improvement] HSTS header: fail → pass
- [security] Tool “create_purchase_plan” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 3073 → 3694
- [functional] Schema quality: poor → fair
- [functional] New tool “decide_supplier_order_cancellation”
- [functional] New tool “open_warranty_claim”
- [functional] New tool “report_order_issue”
- [functional] New tool “request_order_cancellation”
- [functional] New tool “request_order_return”
- [functional] New tool “update_supplier_order_issue”
- [functional] New tool “update_supplier_order_return”
- [functional] New tool “update_supplier_warranty_claim”
- [cosmetic] “create_project” added an optional parameter “fixture_kind”
- [cosmetic] “submit_sourcing_request” added an optional parameter “fixture_kind”

### 2026-08-09 (score 59, +5)

- [security improvement] Authorization: unverified → partial
- [security] Tool “decline_supplier_rfq” rewrote its description, which is the text the model reads
- [security] Tool “get_supplier_offers” rewrote its description, which is the text the model reads
- [security] Tool “list_sourcing_requests” rewrote its description, which is the text the model reads
- [security] Tool “submit_supplier_quote” rewrote its description, which is the text the model reads
- [security] Tool “upsert_supplier_catalog” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 56 → 65
- [functional regression] Tool coverage: 23% → 10%
- [functional regression] “decline_supplier_rfq” added a required parameter “reason_code”, so existing callers break
- [functional regression] “upsert_supplier_catalog” added a required parameter “idempotency_key”, so existing callers break
- [functional regression] “submit_supplier_quote” dropped the required parameter “source_evidence”
- [functional improvement] Tool “decline_supplier_rfq” now declares an output schema
- [functional improvement] Tool “describe_supplyslate” now declares an output schema
- [functional improvement] Tool “get_connection_guide” now declares an output schema
- [functional improvement] Tool “get_sourcing_request” now declares an output schema
- [functional improvement] Tool “get_supplier” now declares an output schema
- [functional improvement] Tool “get_supplier_offers” now declares an output schema
- [functional improvement] Tool “get_supplier_profile” now declares an output schema
- [functional improvement] Tool “get_supplier_rfq” now declares an output schema
- [functional improvement] Tool “list_sourcing_categories” now declares an output schema
- [functional improvement] Tool “list_sourcing_requests” now declares an output schema
- [functional improvement] Tool “list_supplier_rfqs” now declares an output schema
- [functional improvement] Tool “list_supplier_taxonomy” now declares an output schema
- [functional improvement] Tool “search_suppliers” now declares an output schema
- [functional improvement] Tool “submit_sourcing_request” now declares an output schema
- [functional improvement] Tool “submit_supplier_quote” now declares an output schema
- [functional improvement] Tool “upsert_supplier_catalog” now declares an output schema
- [functional] First check of Tool coverage: 100
- [functional] Schema quality: fair → poor
- [functional] Server version: 1.1.0 → 2.0.0
- [functional] New tool “ask_rfq_clarification”
- [functional] New tool “attach_artifact_reference”
- [functional] New tool “create_artifact_upload”
- [functional] New tool “create_catalog_import”
- [functional] New tool “create_project”
- [functional] New tool “create_provider_checkout_handoff”
- [functional] New tool “create_purchase_plan”
- [functional] New tool “get_bom”
- [functional] New tool “get_checkout_handoffs”
- [functional] New tool “get_compatibility”
- [functional] New tool “get_live_fabrication_capabilities”
- [functional] New tool “get_order”
- [functional] New tool “get_product”
- [functional] New tool “get_project”
- [functional] New tool “get_purchase_plan”
- [functional] New tool “get_requirement_schema”
- [functional] New tool “list_fabrication_processes”
- [functional] New tool “list_orders”
- [functional] New tool “list_project_validations”
- [functional] New tool “list_supplier_orders”
- [functional] New tool “request_purchase_approval”
- [functional] New tool “revise_supplier_quote”
- [functional] New tool “search_live_components”
- [functional] New tool “search_products”
- [functional] New tool “source_project”
- [functional] New tool “update_availability”
- [functional] New tool “update_project_requirements”
- [functional] New tool “update_supplier_capabilities”
- [functional] New tool “update_supplier_order”
- [functional] New tool “upsert_bom”
- [functional] New tool “validate_project”
- [cosmetic] “submit_supplier_quote” added an optional parameter “fees_minor”
- [cosmetic] “submit_supplier_quote” added an optional parameter “quote_number”
- [cosmetic] “submit_supplier_quote” added an optional parameter “shipping_minor”
- [cosmetic] “submit_supplier_quote” added an optional parameter “tax_minor”
- [cosmetic] “submit_supplier_quote” dropped the optional parameter “quote_reference”

### 2026-08-08 (score 54, −1)

- [functional regression] Tool coverage: 38% → 23%
- [functional regression] Schema quality: 382 → 908
- [functional] Schema quality: good → fair
- [functional] Server version: 1.0.0 → 1.1.0
- [functional] New tool “decline_supplier_rfq”
- [functional] New tool “get_supplier”
- [functional] New tool “get_supplier_profile”
- [functional] New tool “get_supplier_rfq”
- [functional] New tool “list_supplier_rfqs”
- [functional] New tool “list_supplier_taxonomy”
- [functional] New tool “search_suppliers”
- [functional] New tool “submit_supplier_quote”
- [functional] New tool “upsert_supplier_catalog”

### 2026-08-07 (score 55, 0)

- [functional improvement] Stability: unverified → 0.03

## MCP tools (55)

### `describe_supplyslate` (~32 tokens)

Explain what SupplySlate does, what it does not do, and when a buyer-owned agent should use it.

Output parameters:

- `access` (string)
- `boundaries` (array)
- `mcp_endpoint` (string)
- `openapi` (string)
- `purpose` (string)
- `rest_api` (string)
- `service` (string)
- `supplier_directory` (string)
- `use_when` (array)

### `list_sourcing_categories` (~30 tokens)

List the editable supply categories currently accepting requests. Agents may still submit a precise request outside this list.

Output parameters:

- `data` (array)

### `get_connection_guide` (~52 tokens)

Return the exact MCP and REST connection details a buyer, developer, or agent operator needs to connect to SupplySlate.

Input parameters:

- `client` (string): The agent client or integration style that will connect to SupplySlate.

Output parameters:

- `client` (string)
- `first_action` (string)
- `mcp` (object)
- `obtain_access` (string)
- `rest` (object)

### `list_fabrication_processes` (~32 tokens)

List configurable fabrication, kitting, assembly, and test processes with their required artifacts and requirement schemas.

Output parameters:

- `data` (array)

### `get_live_fabrication_capabilities` (~39 tokens)

Read attributed live fabrication capabilities from the connected AFN provider. This is discovery only and neither uploads a design nor requests a quote.

Output parameters:

- `attribution` (string)
- `capabilities`
- `commercial_boundary` (string)
- `observed_at` (string)
- `provider` (string)
- `source_url` (string)

### `search_live_components` (~75 tokens)

Search attributed current electronic-component product, availability, lead-time, and price data from Mouser. Results retain provider, observation time, and merchant URLs; no checkout or order is created.

Input parameters:

- `limit` (integer)
- `manufacturer` (string)
- `query` (string, required)
- `search_type` (string)

Output parameters:

- `attribution` (string)
- `cached` (boolean)
- `count` (integer)
- `data` (array)
- `provider` (string)

### `get_requirement_schema` (~75 tokens)

Read the evidence-safe input schema for a configurable supply category or fabrication process, including required fields, recommended fields, accepted artifacts, and safety notes.

Input parameters:

- `identifier` (string, required): Category code, fabrication-process slug, or fabrication-process ID.
- `type` (string): Optional disambiguation when an identifier could exist in both namespaces.

Output parameters:

- `category`
- `data` (object)
- `process`

### `search_products` (~62 tokens)

Search published canonical product facts. Commercial price, stock, compatibility, and lead time are returned only when separately supported by current evidence.

Input parameters:

- `category` (string)
- `limit` (integer)
- `manufacturer` (string)
- `q` (string)

Output parameters:

- `data` (array)

### `get_product` (~36 tokens)

Read one published canonical product with variants, category links, evidence scope, observation dates, and freshness.

Input parameters:

- `product_id` (string, required)

Output parameters:

- `data` (object)
- `product` (object)

### `get_compatibility` (~42 tokens)

Read one published compatibility or substitution assertion with exact subject, object, conditions, confidence, evidence source, and observation time.

Input parameters:

- `compatibility_id` (string, required)

Output parameters:

- `compatibility` (object)
- `data` (object)

### `list_supplier_taxonomy` (~31 tokens)

List the product categories used by the public industrial compressor service-parts supplier directory, including verified supplier counts.

Output parameters:

- `data` (array)

### `search_suppliers` (~157 tokens)

Search source-backed public supplier profiles by product category, brand, company type, service, compressor type, industry, or text. No authentication required.

Input parameters:

- `brand` (string): Exact publicly listed brand, such as Atlas Copco.
- `category` (string): Exact category code from list_supplier_taxonomy.
- `company_type` (string)
- `compressor_type` (string)
- `country` (string): Two-letter country code. Defaults to US; use all only when broader coverage is intentional.
- `industry` (string)
- `limit` (integer)
- `offset` (integer)
- `q` (string): Text contained in a supplier name, summary, or listed brand.
- `service` (string)

Output parameters:

- `count` (integer)
- `data` (array)
- `total` (integer)

### `get_supplier` (~36 tokens)

Read one public supplier profile with source URLs and evidence for every category, capability, and brand claim.

Input parameters:

- `supplier_id` (string, required)

Output parameters:

- `data` (object)
- `supplier` (object)

### `create_project` (~178 tokens)

Create a durable supply project from an idea, file, BOM, exact part, or RFQ origin. Requires a scoped buyer credential.

Input parameters:

- `brief` (string, required)
- `budget_currency` (string)
- `budget_minor` (integer)
- `build_quantity` (number)
- `data_classification` (string)
- `demand_lane` (string, required)
- `external_id` (string)
- `fixture_kind` (string): Explicit lineage for integration fixtures; never use synthetic records as market evidence.
- `name` (string, required)
- `need_by` (string)
- `origin_type` (string, required)
- `project_type` (string, required)
- `requirements` (array)
- `ship_to_country` (string)
- `ship_to_postal_code` (string)
- `substitution_policy` (string)

Output parameters:

- `project` (object)

### `get_project` (~38 tokens)

Read a project, its current immutable-capable revision, requirements, artifacts, BOM summaries, and validation history.

Input parameters:

- `project_id` (string, required)

Output parameters:

- `project` (object)

### `update_project_requirements` (~48 tokens)

Replace the structured requirement set on an unlocked project revision. Confirmed flags distinguish buyer-confirmed facts from agent interpretation.

Input parameters:

- `project_id` (string, required)
- `requirements` (array, required)

Output parameters:

- `project` (object)

### `create_artifact_upload` (~102 tokens)

Create a short-lived, one-time private artifact upload URL. The caller must stream the exact declared bytes with a SHA-256 checksum.

Input parameters:

- `artifact_type` (string, required)
- `checksum_sha256` (string, required)
- `data_classification` (string, required)
- `media_type` (string, required)
- `original_filename` (string, required)
- `project_id` (string, required)
- `purpose` (string, required)
- `size_bytes` (integer, required)

Output parameters:

- `artifact` (object)
- `upload` (object)

### `attach_artifact_reference` (~116 tokens)

Attach an HTTPS repository, document, drawing, datasheet, BOM, or design reference to the current project revision without copying its bytes. Private or expiring URLs remain the buyer's responsibility until uploaded directly.

Input parameters:

- `artifact_type` (string, required)
- `checksum_sha256` (string)
- `data_classification` (string, required)
- `media_type` (string)
- `original_filename` (string)
- `project_id` (string, required)
- `purpose` (string, required)
- `source_url` (string, required)

Output parameters:

- `artifact` (object)

### `upsert_bom` (~93 tokens)

Create a BOM or a new BOM revision with assemblies, catalog items, custom parts, services, consumables, artifacts, and interface dependencies.

Input parameters:

- `bom_id` (string)
- `build_quantity` (number)
- `dependencies` (array)
- `items` (array, required)
- `name` (string, required)
- `project_id` (string, required)
- `source_artifact_id` (string)

Output parameters:

- `bom` (object)

### `get_bom` (~46 tokens)

Read the current revision of one project BOM, including hierarchy, quantities, sourcing state, and interface dependencies.

Input parameters:

- `bom_id` (string, required)
- `project_id` (string, required)

Output parameters:

- `bom` (object)

### `validate_project` (~43 tokens)

Run the current versioned validators and return separate blocking errors, compatibility conflicts, warnings, missing information, passed checks, and unavailable checks.

Input parameters:

- `project_id` (string, required)

Output parameters:

- `validation` (object)

### `list_project_validations` (~32 tokens)

List versioned validation reports for a project without implying licensed engineering approval.

Input parameters:

- `project_id` (string, required)

Output parameters:

- `data` (array)

### `source_project` (~163 tokens)

Lock the validated project revision into an immutable sourcing package, create normalized request lines, and return transparent supplier candidates. This does not contact suppliers; a human operator must approve every outbound recipient, message, and artifact scope.

Input parameters:

- `artifact_ids` (array)
- `category` (string, required)
- `data_classification` (string)
- `external_id` (string): Buyer-controlled idempotency key.
- `items` (array): Optional fast exact-part or RFQ lines. Omit to source the current BOM.
- `need_by` (string)
- `notes` (string)
- `project_id` (string, required)
- `ship_to_country` (string)
- `ship_to_postal_code` (string)
- `substitutions_allowed` (boolean)

Output parameters:

- `sourcing_request` (object)

### `create_purchase_plan` (~86 tokens)

Create an immutable, single-currency, multi-supplier purchase plan from selected current quote lines, choosing at most one commercial option per requested line. This records a plan only; it neither approves nor purchases anything.

Input parameters:

- `expires_at` (string)
- `idempotency_key` (string, required)
- `quote_item_ids` (array, required)
- `request_id` (string, required)

Output parameters:

- `idempotent_replay` (boolean)
- `purchase_plan` (object)

### `get_purchase_plan` (~43 tokens)

Read one exact purchase-plan version with selected lines, merchants, totals, risks, evidence, approvals, and checkout handoffs.

Input parameters:

- `purchase_plan_id` (string, required)

Output parameters:

- `purchase_plan` (object)

### `request_purchase_approval` (~62 tokens)

Create a human review link bound to the exact purchase-plan version, suppliers, maximum amount, currency, risks, and expiry. This does not approve or purchase the plan.

Input parameters:

- `expires_in_minutes` (integer)
- `purchase_plan_id` (string, required)

Output parameters:

- `approval` (object)

### `get_checkout_handoffs` (~52 tokens)

List merchant-hosted checkout, supplier invoice, or merchant-order handoffs for an approved plan. Suppliers remain merchant of record and SupplySlate does not process funds.

Input parameters:

- `purchase_plan_id` (string, required)

Output parameters:

- `data` (array)
- `merchant_of_record` (string)
- `purchase_plan_id` (string)

### `create_provider_checkout_handoff` (~157 tokens)

After a human has approved the exact purchase plan, create one supplier-hosted payment link for a checkout-connected provider offer. This creates an unpaid provider order but never submits payment or exposes payment credentials to SupplySlate.

Input parameters:

- `contact` (object): Optional. Omit to let the provider-hosted page collect contact details from the human.
- `merchant_group_key` (string, required)
- `purchase_plan_id` (string, required)
- `return_url` (string)
- `ship_to` (object): Optional. Omit to let the provider-hosted page collect the shipping address from the human.
- `shipping_option_id` (string): Exact approved shipping option. Omit to use the least-cost option already priced into the approved plan.

Output parameters:

- `checkout_handoff` (object)
- `idempotent_replay` (boolean)
- `merchant_of_record` (string)
- `payment_boundary` (string)

### `list_orders` (~31 tokens)

List merchant-confirmed orders for the buyer organization. A plan or queued handoff is never represented as an order.

Output parameters:

- `data` (array)
- `summary` (object)

### `get_order` (~37 tokens)

Read one merchant-confirmed order with items, fulfillment, shipments, issues, evidence, and event history.

Input parameters:

- `order_id` (string, required)

Output parameters:

- `order` (object)

### `report_order_issue` (~87 tokens)

Open a durable post-purchase issue for a merchant-confirmed order. This notifies the supplier-side organization and records owner, status, and event history; it does not claim a resolution.

Input parameters:

- `issue_type` (string, required)
- `order_id` (string, required)
- `order_item_id` (string)
- `owner_type` (string)
- `summary` (string, required)

Output parameters:

- `order` (object)

### `request_order_cancellation` (~59 tokens)

Ask the merchant to cancel an unshipped order. This creates a request and notification; it never reports the order as cancelled until the supplier or an operator accepts it.

Input parameters:

- `order_id` (string, required)
- `reason` (string, required)

Output parameters:

- `order` (object)

### `request_order_return` (~51 tokens)

Open a return request after shipment. The supplier remains merchant of record and controls authorization and refund state.

Input parameters:

- `items` (array)
- `order_id` (string, required)
- `reason` (string, required)

Output parameters:

- `order` (object)

### `open_warranty_claim` (~63 tokens)

Open a durable warranty claim on an accepted order or specific order line. This records the claim and notifies the supplier without asserting eligibility or approval.

Input parameters:

- `description` (string, required)
- `order_id` (string, required)
- `order_item_id` (string)

Output parameters:

- `order` (object)

### `get_supplier_profile` (~29 tokens)

Read the authenticated supplier's SupplySlate profile and current catalog-item count. Requires a supplier API key.

Output parameters:

- `profile` (object)
- `supplier` (object)

### `upsert_supplier_catalog` (~55 tokens)

Create or update normalized supplier catalog items through a durable manual import with row-level validation, history, evidence scope, availability, and commercial terms.

Input parameters:

- `idempotency_key` (string, required)
- `items` (array, required)

Output parameters:

- `catalog_import` (object)
- `import` (object)

### `create_catalog_import` (~98 tokens)

Create a durable CSV, XLSX, JSON, feed, API, document, or manual catalog import. Supply parsed rows for immediate validation, or an artifact/source reference to enter the mapping workflow.

Input parameters:

- `idempotency_key` (string, required)
- `mapping` (object)
- `rows` (array)
- `source_artifact_id` (string)
- `source_type` (string, required)
- `source_url` (string)

Output parameters:

- `catalog_import` (object)
- `import` (object)

### `update_supplier_capabilities` (~40 tokens)

Replace the supplier-submitted capability set while preserving separately sourced public, operator-verified, and transaction-proven evidence.

Input parameters:

- `capabilities` (array, required)

Output parameters:

- `capabilities` (array)
- `data` (array)

### `update_availability` (~35 tokens)

Append timestamped supplier availability evidence and update current catalog state by supplier SKU without rewriting historical snapshots.

Input parameters:

- `items` (array, required)

Output parameters:

- `data` (array)
- `updated_count` (integer)

### `list_supplier_rfqs` (~33 tokens)

List approved RFQs matched to the authenticated supplier. Requires a supplier API key.

Input parameters:

- `limit` (integer)

Output parameters:

- `data` (array)
- `summary` (object)

### `get_supplier_rfq` (~36 tokens)

Read an approved RFQ and its normalized buyer line items. Requires a supplier API key.

Input parameters:

- `match_id` (string, required)

Output parameters:

- `rfq` (object)
- `sourcing_request` (object)

### `submit_supplier_quote` (~133 tokens)

Submit the first structured commercial quote for a human-approved RFQ. Money is integer minor units with an explicit currency; partial line coverage and labeled alternatives are allowed.

Input parameters:

- `currency` (string, required)
- `delivery_terms` (string)
- `fees_minor` (integer)
- `items` (array, required)
- `match_id` (string, required)
- `notes` (string)
- `payment_terms` (string)
- `quote_number` (string)
- `shipping_minor` (integer)
- `tax_minor` (integer)
- `valid_until` (string)
- `warranty` (string)

Output parameters:

- `quote` (object)

### `ask_rfq_clarification` (~46 tokens)

Ask the buyer a clarification question on an approved supplier RFQ without changing the immutable request package.

Input parameters:

- `match_id` (string, required)
- `question` (string, required)

Output parameters:

- `clarification` (object)

### `revise_supplier_quote` (~132 tokens)

Create a new immutable revision of a supplier quote. The previous revision remains in history and the new revision becomes current.

Input parameters:

- `currency` (string, required)
- `delivery_terms` (string)
- `fees_minor` (integer)
- `items` (array, required)
- `match_id` (string, required)
- `notes` (string)
- `payment_terms` (string)
- `quote_id` (string, required)
- `quote_number` (string)
- `shipping_minor` (integer)
- `tax_minor` (integer)
- `valid_until` (string)
- `warranty` (string)

Output parameters:

- `quote` (object)

### `decline_supplier_rfq` (~53 tokens)

Decline an approved RFQ with a structured reason so the buyer and network can route more accurately.

Input parameters:

- `match_id` (string, required)
- `reason` (string, required)
- `reason_code` (string, required)

Output parameters:

- `decline` (object)
- `sourcing_request` (object)

### `list_supplier_orders` (~37 tokens)

List merchant-confirmed orders attributable to the authenticated supplier. RFQs, quotes, plans, and checkout handoffs are not represented as orders.

Output parameters:

- `data` (array)
- `summary` (object)

### `update_supplier_order` (~68 tokens)

Acknowledge or update fulfillment on a merchant-confirmed supplier order, optionally recording a shipment. State transitions and order-item quantities are validated and audited.

Input parameters:

- `note` (string)
- `order_id` (string, required)
- `shipment` (object)
- `status` (string, required)

Output parameters:

- `order` (object)

### `update_supplier_order_issue` (~69 tokens)

Update ownership, status, or resolution for a buyer-reported issue on the authenticated supplier's merchant order.

Input parameters:

- `issue_id` (string, required)
- `order_id` (string, required)
- `owner_type` (string)
- `resolution` (string)
- `status` (string, required)

Output parameters:

- `order` (object)

### `decide_supplier_order_cancellation` (~76 tokens)

Accept or reject a buyer cancellation request for the authenticated supplier's unshipped merchant order. Acceptance is the state-changing merchant decision.

Input parameters:

- `cancellation_request_id` (string, required)
- `decision` (string, required)
- `merchant_reference` (string)
- `note` (string)
- `order_id` (string, required)

Output parameters:

- `order` (object)

### `update_supplier_order_return` (~86 tokens)

Advance an authenticated supplier return through authorization, shipment, receipt, and refund states without changing historical order evidence.

Input parameters:

- `currency` (string)
- `merchant_return_reference` (string)
- `note` (string)
- `order_id` (string, required)
- `refund_amount_minor` (integer)
- `return_id` (string, required)
- `status` (string, required)

Output parameters:

- `order` (object)

### `update_supplier_warranty_claim` (~74 tokens)

Advance a warranty claim through supplier review, approval, replacement, resolution, or rejection with a merchant reference and durable history.

Input parameters:

- `note` (string)
- `order_id` (string, required)
- `status` (string, required)
- `supplier_reference` (string)
- `warranty_claim_id` (string, required)

Output parameters:

- `order` (object)

### `submit_sourcing_request` (~179 tokens)

Submit a real non-sensitive B2B sourcing request on behalf of the buyer. SupplySlate routes it to relevant suppliers and returns structured offers later. Requires a buyer API key.

Input parameters:

- `category` (string, required): Supply category. Use a precise category even if it is not in the current category list.
- `data_classification` (string)
- `external_id` (string): Buyer-controlled idempotency key for this request.
- `fixture_kind` (string): Explicit lineage for integration fixtures; never use synthetic records as market evidence.
- `items` (array, required)
- `need_by` (string): Requested delivery date in YYYY-MM-DD format.
- `notes` (string)
- `ship_to_country` (string, required): Two-letter ISO country code.
- `ship_to_postal_code` (string)
- `substitutions_allowed` (boolean)

Output parameters:

- `sourcing_request` (object)

### `list_sourcing_requests` (~34 tokens)

List recent sourcing requests owned by the authenticated buyer organization across API keys and OAuth agents.

Input parameters:

- `limit` (integer)

Output parameters:

- `data` (array)
- `summary` (object)

### `get_sourcing_request` (~33 tokens)

Read the current status and normalized line items for one authenticated buyer sourcing request.

Input parameters:

- `request_id` (string, required)

Output parameters:

- `sourcing_request` (object)

### `get_supplier_offers` (~62 tokens)

Retrieve current normalized supplier quote revisions for one buyer sourcing request, including unquoted lines, compatibility, price, availability, lead time, terms, and evidence. SupplySlate returns explicit tradeoffs and applies no hidden winner score.

Input parameters:

- `request_id` (string, required)

Output parameters:

- `offers` (array)
- `unquoted_items` (array)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-supplyslate-sourcing/mcp#diagnostics

## Score history

- 2026-08-17: 71
- 2026-08-16: 70
- 2026-08-15: 70
- 2026-08-14: 69
- 2026-08-13: 68
- 2026-08-12: 68
- 2026-08-11: 68
- 2026-08-10: 62
- 2026-08-09: 59
- 2026-08-08: 54
- 2026-08-07: 55
- 2026-08-06: 55

## Links

- Remote endpoint: https://mcp.supplyslate.com/mcp
- Changelog RSS feed: https://verifymcp.io/servers/com-supplyslate-sourcing/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-supplyslate-sourcing/mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-supplyslate-sourcing/mcp