Official MCP RegistryListed
Lumière PayCheck
Check any x402 endpoint before your AI agent pays it: trust grade, verdict, and hijack checks.
First seen 2 Oct 2026. Evidence as of 4 Oct 2026.
6
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| catalog_stats | Get an overview of the whole monitored x402 catalog: how many endpoints are monitored, how many fall into each verdict (proceed, caution, avoid, free, insufficient_data), and when scores were last computed. Use it for context or reporting, for example to tell a user how much of the x402 ecosystem passes checks. It says nothing about any single endpoint: use check_endpoint for one endpoint, top_endpoints for a ranked list, or check_payment before paying. Read-only, free, no parameters. | Read-only |
| check_endpoint | Get the trust verdict for one x402 endpoint: score (0-100), grade (A-F), and verdict (proceed, caution, avoid, free, or insufficient_data), plus uptime, delivery-test status, and payout-wallet incidents. Use it when you're deciding whether an endpoint is trustworthy at all, before you have a price quote. When you already have the 402 quote (amount and payTo) and are about to pay, use check_payment instead: it runs this same check and also verifies the price and wallet. To discover good endpoints rather than check a known one, use top_endpoints. Read-only and free; reflects monitoring every 30 minutes and real test payments, so a brand-new endpoint may return insufficient_data. Endpoints not in the catalog return monitored: false. API docs: https://github.com/Book0fEli/lumiere-paycheck/blob/main/docs/api.md | Read-only |
| check_payment | Decide whether a specific x402 payment should go through: returns allow true/false with reasons. Checks the endpoint's trust verdict, that the amount is within your cap and not above the monitored price, and that the payTo wallet matches the one we've observed (catches swapped or hijacked wallets). Intended for right before a payment, with the amount, payTo, and network from the endpoint's 402 quote; allow is true only when every rule passes. Use check_endpoint instead if you only want an endpoint's grade without a quote in hand. Read-only and free; it doesn't make or block the payment itself. When allow is false, the reasons list explains why. API docs: https://github.com/Book0fEli/lumiere-paycheck/blob/main/docs/api.md | Read-only |
| get_full_report | Get instructions for buying the detailed paid report on one x402 endpoint (score breakdown, current price quote, wallet and price history, test-payment results). Returns the report URL, price, and network; it doesn't buy the report itself. The report is an x402 endpoint that your agent pays with any x402 client. Use it only when the free check_endpoint result isn't enough and the user wants the full history. Endpoints we don't monitor return 404 on the report URL and are never charged. API docs: https://github.com/Book0fEli/lumiere-paycheck/blob/main/docs/api.md | Read-only |
| report_outcome | Report whether a paid x402 call delivered a usable response, using the receipt from a Lumière PayCheck allow decision (the paid /v1/authorize API). Applies only to payments made with such a receipt, within 24 hours; reporting is optional. Not for checking endpoints (use check_endpoint or check_payment). Records one vote per buyer and payment within 24 hours of the decision; repeats are ignored. Problem reports from several independent buyers trigger a paid re-test, and only that re-test can change a grade. | Changes data |
| top_endpoints | List the x402 endpoints that are currently safest to pay (verdict proceed or caution, no payout-wallet incidents), best first, with score, grade, verdict, and whether a real test payment was delivered. Use it to discover reliable endpoints or pick between providers. To evaluate one specific endpoint use check_endpoint; to approve a payment use check_payment. Read-only and free; rankings update as monitoring runs (every 30 minutes). | Read-only |
Change history
- MCP URL changed from "https://lumierepaycheck.org/mcp" to "https://lumierepaycheck.org/mcp?plans=1" (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | io.github.Book0fEli/paycheck | 2 Oct 2026 | 4 Oct 2026 | 2 |