{"uid":"cap_AmOxjG5_wSKF2KHOOcVA2","slug":"youraitools-x402-endpoint-checker-1d3c757b","name":"YourAITools x402 Endpoint Checker","description":"Full x402 endpoint check API with paste-ready fixes. Full x402 endpoint check with paste-ready fixes: everything in lite plus a facilitator validate verdict and Bazaar index status, /openapi.json and /.well-known/x402 consistency, payee checks (EVM code, Solana USDC token account, CounterpartyCheck screening) and a generated, self-validated extensions.bazaar block, multichain accepts (Base, Polygon, Arbitrum One, Solana) and code snippet.","url":"https://api.youraitools.co/x402fix/v1/check?utm_source=zero.xyz","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","description":"Full https URL of the paid x402 route (site tier: the origin or API base URL)"},"method":{"enum":["GET","POST"],"type":"string","description":"Method your paid route uses (default: from its Bazaar declaration, else GET)"},"framework":{"enum":["hono","express","next"],"type":"string","description":"Server framework for the generated snippet (check tier, default hono)"}},"description":"Search intents: x402 endpoint audit, openapi x402 check, x402 fix list, x402 seller debugging"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"cdp":{"type":"object"},"url":{"type":"string"},"tier":{"type":"string"},"x402":{"type":"object"},"fixes":{"type":"array"},"grade":{"type":"string"},"score":{"type":"number"},"method":{"type":"string"},"status":{"type":"string"},"summary":{"type":"string"},"generated":{"type":"object"}}}}}}},"responseSchema":{"type":"json","example":{"cdp":{"valid":true,"failed":[],"indexed":true,"last_crawled_at":"2026-10-22T16:29:39.916Z"},"url":"https://api.youraitools.co/counterpartycheck/v1/lite","tier":"check","x402":{"v1":true,"v2":true,"bazaar":true,"networks":["Base","Polygon","Arbitrum One","Solana"],"price_usd":0.005},"fixes":[],"grade":"A","score":100,"method":"GET","status":"pass","summary":"A (100/100): x402 v2+v1, Base, Polygon, Arbitrum One, Solana. No problems found.","generated":{"note":"Paste-ready: the bazaar block validates against its own schema.","bazaar_self_valid":true}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__wDLxwnx-dRNPt-ewDcHL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates whether a given URL is a correctly implemented x402 payment-gated API endpoint, returning a grade, score, and detailed compliance report","exampleAgentPrompt":"Can you check whether my API at https://api.myservice.com/v1/data is properly set up as an x402 payment route — I want to know its compliance grade, which networks it supports, and if there are any issues to fix?","exampleUseCases":[{"title":"Pre-launch x402 compliance audit","prompt":"Before I launch my paid AI API, can you run a compliance check on https://api.myapp.com/generate/v1 to see if it passes x402 validation and what grade it gets?"},{"title":"Debugging a failing x402 payment gate","prompt":"My x402 route at https://api.example.com/paid/search isn't accepting payments properly — can you check it and tell me what's broken and how to fix it?"},{"title":"Verifying bazaar indexing and network support","prompt":"Is my endpoint at https://api.coolai.xyz/v2/summarize listed in the x402 bazaar and does it support both Base and Solana networks?"}],"resultDescription":"Returns a JSON object with: a letter grade (e.g. 'A') and numeric score (0-100), pass/fail status, x402 protocol version support (v1/v2), supported blockchain networks (Base, Polygon, Arbitrum One, Solana), CDP crawl status and last crawl timestamp, bazaar indexing flag, a list of specific fixes/issues found, and a human-readable summary string.","failureModes":["URL is not reachable or returns non-402 response — check returns fail status","Invalid or malformed URL input — schema validation error","Endpoint exists but has no x402 headers — grade F or low score with fix recommendations","CDP has not yet indexed the URL — indexed:false returned","Network timeout on remote URL fetch — error response"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that a specific URL correctly implements the x402 payment protocol — especially before listing an API in a directory, debugging payment failures, or confirming multi-network and multi-version compliance. Prefer this over manual inspection or generic HTTP testers when you need a structured grade, score, and actionable fix list specific to x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T12:39:48.168Z","isFirstParty":false,"canonicalSlug":"youraitools-x402-endpoint-checker-1d3c757b"}