{"uid":"cap_L1KE_MrN6npphx3AoRQKW","slug":"quartermaster-x402-endpoint-auditor-f7b0154b","name":"Quartermaster x402 Endpoint Auditor","description":"Full x402 endpoint audit: verifies the 402 challenge, payment fields, Bazaar discovery metadata, and the origin's discovery surfaces (llms.txt, openapi.json, .well-known/x402, discovery/resources), returning a 0-100 score, pass/warn/fail checks with evidence, and recommended fixes.","url":"https://quartermaster.surewhynot.app/v1/x402-audit","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","format":"uri","description":"x402 paid endpoint to audit"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_MtedXAAtrV9i_2o9IabIK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Audits an x402-enabled paid endpoint for protocol compliance, scoring its 402 challenge, payment fields, Bazaar discovery metadata, and discovery surfaces with a 0-100 score and actionable fixes.","exampleAgentPrompt":"Run a full x402 compliance audit on my paid endpoint at https://api.example.com/v1/my-resource — I want to see the score, which checks pass or fail, and what I need to fix to get it listed on the Bazaar.","exampleUseCases":[{"title":"Diagnose failing x402 payment fields","prompt":"My paid API at https://api.myservice.com/data/premium keeps getting rejected by x402 clients — can you run a compliance audit and tell me exactly which payment fields are wrong and how to fix them?"},{"title":"Pre-launch Bazaar listing check","prompt":"I'm about to submit my endpoint at https://api.acme.io/v1/reports to the Bazaar — audit it first and let me know if my discovery surfaces like llms.txt and .well-known/x402 are all set up correctly so I don't get rejected."},{"title":"Score competitor x402 implementation","prompt":"Can you audit the x402 endpoint at https://api.thirdparty.dev/v1/analytics and give me a full compliance score? I want to see how well their 402 challenge and discovery metadata hold up against the protocol spec."}],"resultDescription":"Returns a 0-100 compliance score, a list of pass/warn/fail checks with evidence for each (covering the 402 challenge, payment fields, Bazaar discovery metadata, and discovery surfaces including llms.txt, openapi.json, .well-known/x402, and discovery/resources), plus recommended fixes for any failing checks.","failureModes":["Target URL is not reachable or returns unexpected status codes","Target URL does not implement x402 at all, resulting in low/zero score","Malformed URL input causes validation error","Discovery surfaces (llms.txt, openapi.json, etc.) are inaccessible or return errors","Network timeout when probing the target endpoint"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, multi-dimensional compliance report for an x402 paid endpoint — covering the full protocol stack including 402 challenge format, payment fields, Bazaar discovery metadata, and all standard discovery surfaces. Prefer this over manual inspection or partial checks when you want a single scored report with actionable fixes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:39:24.749Z","isFirstParty":false}