# Penny Engine — Agent Operations (remote · penny-agent-api-production.up.railway.app)

Remote MCP utilities for agents: structured data, commerce checks, and x402 paid API discovery.

- Trust score: 70/100 (medium)
- Change this week: +2
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `penny-agent-api-production.up.railway.app`: 70/100 (this document), [markdown](https://verifymcp.io/servers/kasheik3-penny-engine/penny-agent-api-production.md), [page](https://verifymcp.io/servers/kasheik3-penny-engine/penny-agent-api-production)

## Channel facts

- Endpoint: `https://penny-agent-api-production.up.railway.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.7.7`

## 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 2026-11-04.

- **Endpoint Security**: 11/100
  - TLS not yet verified: we couldn't open a connection to check the certificate.
  - Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS not yet verified: we couldn't read the response headers to check for it.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 0/100
  - Transport check failed: declared streamable-http, but we couldn't connect to verify it.
- **Schema Quality & AI Usability**: 0/100
  - Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Capabilities**: 0/100
  - Capabilities not yet verified: we couldn't read the endpoint's capabilities.

**Unverified: 5 categories.** Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

## Install

### How do I install the Penny Engine — Agent Operations MCP server?

Penny Engine — Agent Operations is a hosted endpoint at https://penny-agent-api-production.up.railway.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http kasheik3-penny-engine 'https://penny-agent-api-production.up.railway.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "kasheik3-penny-engine": {
      "url": "https://penny-agent-api-production.up.railway.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "kasheik3-penny-engine": {
      "type": "http",
      "url": "https://penny-agent-api-production.up.railway.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.kasheik3-penny-engine]
url = "https://penny-agent-api-production.up.railway.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "kasheik3-penny-engine": {
      "type": "remote",
      "url": "https://penny-agent-api-production.up.railway.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add kasheik3-penny-engine --url 'https://penny-agent-api-production.up.railway.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  kasheik3-penny-engine:
    url: "https://penny-agent-api-production.up.railway.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "kasheik3-penny-engine": {
      "Transport": "http",
      "Url": "https://penny-agent-api-production.up.railway.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add kasheik3-penny-engine -t streamable-http -u 'https://penny-agent-api-production.up.railway.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "kasheik3-penny-engine": {
      "type": "http",
      "url": "https://penny-agent-api-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.

### 2026-11-04 (score 70, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] HSTS header: fail → unverified
- [security regression] Authorization: partial → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] TLS certificate: pass → unverified
- [security regression] Stability: 0.50 → unverified
- [security regression] Transport: pass → fail
- [functional regression] Capabilities: fail → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-11-02 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 69, +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.

### 2026-10-28 (score 68, +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.

### 2026-10-26 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-24 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-22 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-20 (score 64, +1)

- [functional regression] Schema quality: 974 → 1183
- [functional improvement] Stability: unverified → 0.03
- [functional] Server version: 0.7.7 → 0.8.6
- [functional] New tool “penny_catalog_import_guard”
- [functional] New tool “penny_product_evidence”

## MCP tools (18)

### `penny_margin` (~47 tokens)

Unit margin, markup and break-even units. Free, no signup, deterministic.

Input parameters:

- `fixedCost` (number)
- `price` (number, required)
- `variableCost` (number, required)

### `penny_cleaning_quote` (~77 tokens)

Commercial cleaning quote by labor and target margin. Free, no signup, deterministic.

Input parameters:

- `hourlyWage` (number, required)
- `hours` (number, required)
- `laborBurdenPct` (number)
- `overheadUsd` (number)
- `suppliesUsd` (number)
- `targetMarginPct` (number)

### `penny_marketplace_profit` (~88 tokens)

Ecommerce net contribution after goods, fees, ads and shipping. Free, no signup, deterministic.

Input parameters:

- `adCost` (number)
- `platformFeeFixed` (number)
- `platformFeePct` (number)
- `productCost` (number, required)
- `salePrice` (number, required)
- `shippingCharged` (number)
- `shippingCost` (number)

### `penny_target_price` (~58 tokens)

Find minimum price for target gross margin after fees. Free, no signup, deterministic.

Input parameters:

- `cost` (number, required)
- `feeFixed` (number)
- `feePct` (number)
- `targetMarginPct` (number)

### `penny_campaign_economics` (~55 tokens)

Customer acquisition cost and break-even click price. Free, no signup, deterministic.

Input parameters:

- `contributionPerOrderUsd` (number, required)
- `conversionRatePct` (number, required)
- `costPerClick` (number, required)

### `penny_subscription_ltv` (~61 tokens)

Simple monthly churn lifetime value estimates. Free, no signup, deterministic.

Input parameters:

- `acquisitionCostUsd` (number)
- `grossMarginPct` (number)
- `monthlyChurnPct` (number, required)
- `pricePerMonth` (number, required)

### `penny_url_clean` (~42 tokens)

Remove common tracking parameters from HTTP links without fetching. Free, no signup, deterministic.

Input parameters:

- `removeAllQuery` (boolean)
- `url` (string, required)

### `penny_slugify` (~34 tokens)

Turn a short string into a lowercase ASCII URL slug. Free, no signup, deterministic.

Input parameters:

- `text` (string, required)

### `penny_json_inspect` (~34 tokens)

Parse and inspect bounded JSON input without retaining it. Free, no signup, deterministic.

Input parameters:

- `text` (string, required)

### `penny_html_extract` (~45 tokens)

Extract structured page title, meta tags, headings and JSON-LD from supplied HTML without browsing or executing scripts. Free, no signup, deterministic.

Input parameters:

- `html` (string, required)

### `penny_csv_to_json` (~39 tokens)

Transform CSV text into a bounded array of JSON records with quoted cell support. Free, no signup, deterministic.

Input parameters:

- `csv` (string, required)

### `penny_catalog_audit` (~73 tokens)

Batch-audit up to 50 product records for duplicate SKUs, missing attributes, malformed URLs and estimated net contribution per order. Useful for scheduled ecommerce catalog ingestion and agent product publishing. No external network calls. Free, no signup.

Input parameters:

- `items` (array, required)
- `targetMarginPct` (number)

### `penny_trend_radar` (~91 tokens)

Get recent US Google Trends rising-search queries and transparent heuristic purchase-intent classification to identify digital product research candidates. Public RSS, cached 10 minutes, no customer or sales data. Free, no signup.

Input parameters:

- `commercialOnly` (boolean): Only include potential commercial-intent terms; default false
- `limit` (number): Maximum entries to return; integer 1–25, default 10

### `penny_capability_router` (~57 tokens)

Resolve an agent task to existing Penny Engine capabilities only. Does not execute, purchase, research live web content, or claim to handle arbitrary tasks. Unsupported requests are labeled explicitly. Free, no signup.

Input parameters:

- `task` (string, required)

### `penny_fulfillment_preflight` (~74 tokens)

FREE preflight for a catalog audit or agent-output-batch-qa work order, with $0.001 Base USDC checkout instructions. Never charges, signs, or executes the paid call.

Input parameters:

- `goal` (string, required)
- `input` (object, required)
- `maxPriceUsd` (number)

### `penny_choose_service` (~99 tokens)

Given an agent's real task, get the single best supported Penny Engine payable route, exact $0.001 quote, required input, sample, and buyer-authorized checkout instructions. Includes optional FREE CSV preflight; does not sign, pay or execute a paid call.

Input parameters:

- `input` (object): Optional catalog CSV input for free validation, or a public wallet address.
- `maxPriceUsd` (number)
- `task` (string, required)

### `penny_catalog_import_guard` (~123 tokens)

Before importing a product scrape, compare current and previous batches. Flag duplicate IDs, missing records, invalid prices, currency changes, price jumps and stock anomalies. Return row-level allow/review decisions with before/after evidence. Free trial: 50 rows per snapshot, 16,000-character request. No fetching, storage, payment or automatic writes.

Input parameters:

- `allowNewProducts` (boolean)
- `current` (array, required)
- `maxPriceChangePct` (number)
- `maxStockDropPct` (number)
- `previous` (array, required)

### `penny_product_evidence` (~86 tokens)

Retrieve current public product metadata and variant details from supported Allbirds and tentree product URLs. Return source timestamps, hashes, field provenance, conflicts and changes versus a caller-supplied previous snapshot. Narrow free preview; no browser rendering, purchases or background monitoring.

Input parameters:

- `previous` (object): A prior snapshot from this endpoint for the identical URL.
- `url` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/kasheik3-penny-engine/penny-agent-api-production#diagnostics

## Score history

- 2026-11-04: 70
- 2026-11-03: 70
- 2026-11-02: 70
- 2026-11-01: 69
- 2026-10-31: 69
- 2026-10-30: 69
- 2026-10-29: 68
- 2026-10-28: 68
- 2026-10-27: 67
- 2026-10-26: 67
- 2026-10-25: 66
- 2026-10-24: 66
- 2026-10-23: 65
- 2026-10-22: 65
- 2026-10-21: 64
- 2026-10-20: 64
- 2026-10-19: 63

## Common questions

### What is the Penny Engine — Agent Operations MCP server?

Penny Engine — Agent Operations is an MCP server listed in the public MCP registry as io.github.kasheik3/penny-engine. Remote MCP utilities for agents: structured data, commerce checks, and x402 paid API discovery. This page covers its hosted endpoint (https://penny-agent-api-production.up.railway.app/mcp).

### Is the Penny Engine — Agent Operations MCP server safe to use?

Penny Engine — Agent Operations scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Penny Engine — Agent Operations MCP server expose?

Penny Engine — Agent Operations exposes 18 tools: penny_margin, penny_cleaning_quote, penny_marketplace_profit, penny_target_price, penny_campaign_economics, and 13 more. Their descriptions and schemas cost roughly 1,183 tokens of context every time the server is loaded.

### Does the Penny Engine — Agent Operations MCP server require authentication?

Its publisher declares no required credentials for Penny Engine — Agent Operations. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.

### Is the Penny Engine — Agent Operations MCP server still maintained?

Penny Engine — Agent Operations is still listed in the MCP registry, though our most recent checks did not reach this channel. We last reached this channel on 3 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://penny-agent-api-production.up.railway.app/mcp
- Changelog RSS feed: https://verifymcp.io/servers/kasheik3-penny-engine/penny-agent-api-production.xml
- Changelog JSON feed: https://verifymcp.io/servers/kasheik3-penny-engine/penny-agent-api-production.json
- HTML version of this page: https://verifymcp.io/servers/kasheik3-penny-engine/penny-agent-api-production