Live x402 endpoint trust/diligence check before you pay it. $0.02/call via x402.
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First seen 2 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
2
Directories
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3
Tools
From an anonymous probe
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| 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 address on-chain (Base), checks third-party directory presence, and checks basic infra hygiene, and detects possible upstream API resale with evidence-based markup estimates. Returns a 0-100 score, a pass/caution/fail verdict, and per-check evidence. | Not declared |
| 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. | Not declared |
| reseller_check | Free possible-reseller preview. Matches an endpoint's live unpaid 402 description/schema, or a supplied description and price, against a dated catalog of well-known upstream APIs and reports confidence, matched signals, and documented markup math without asserting resale as fact. | Not declared |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | com.x402supply/endpoint-diligence | - | 2 Oct 2026 |
| Smithery | endpoint-diligence | - | 2 Oct 2026 |