endpoint-diligence

Trust scoring for x402 endpoints — answers "should my agent pay this endpoint?" before you spend.

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What it can do

  • Check Endpoint: Runs live diligence on an x402-metered endpoint before you pay it: verifies its 402 payment challenge is spec-compliant, checks the price against market baselines, inspects the payTo a
  • Compare Price: Compares an x402 endpoint's price (or a given price/category pair) against market percentiles from our daily radar snapshot of the x402 ecosystem.

What data it sees

Do you need an account

No: the server works without sign-in

Trust scoring for x402 endpoints — answers "should my agent pay this endpoint?" before you spend. check_endpoint runs live diligence: x402 v2/v1 spec-compliance probe, price sanity vs market percentiles, payTo wallet on-chain activity (Base), directory presence (x402scan/Bazaar/x402-list), and infra hygiene (domain age, free-host detection). Returns a 0-100 score with per-check evidence. compare_price positions any price against category market data. Pay-per-call via x402 (USDC on Base): $0.02/call, no account or API key needed. tools/list and /openapi.json are free for discovery.

How to connect

How to connect endpoint-diligence to Claude

The server address to paste into Claude settings:

https://endpoint-diligence--jeff-5lis.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect endpoint-diligence to ChatGPT

The server address to paste into ChatGPT settings:

https://endpoint-diligence--jeff-5lis.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect endpoint-diligence to Cursor

The server address to paste into Cursor settings:

https://endpoint-diligence--jeff-5lis.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (2)

Raw names from tools/list. Only developers need these.

check_endpointRuns live diligence on an x402-metered endpoint before you pay it: verifies its 402 payment challenge is spec-compliant, checks the price against market baselines, inspects the payTo address on-chain (Base), checks third-party directory presence, and checks basic infra hygiene. Returns a 0-100 score, a pass/caution/fail verdict, and per-check evidence.
compare_priceCompares an x402 endpoint's price (or a given price/category pair) against market percentiles from our daily radar snapshot of the x402 ecosystem.