{"uid":"cap_ZA_BOemWqjv6hiH5_43m9","slug":"no-hands-ai-endpoint-preflight-http-402-x402-inspector-4108d489","name":"NO HANDS AI – Endpoint Preflight (HTTP 402 / x402 Inspector)","description":"Inspect a public HTTPS endpoint without paying it. Read its HTTP 402 payment requirements, Base/USDC pricing and Bazaar discovery schema.","url":"https://nohands-coinbase-bazaar.bytoken2023.workers.dev/v1/endpoint-preflight?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","pattern":"^https://","description":"Exact public HTTPS endpoint URL to inspect without sending a payment."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["target_url","observed_at","http_status","x402","warnings","payment_tested"],"properties":{"x402":{"type":"object"},"warnings":{"type":"array","items":{"type":"string"}},"target_url":{"type":"string"},"http_status":{"type":["integer","null"]},"observed_at":{"type":"string"},"payment_tested":{"type":"boolean","const":false}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.015002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LgDtzESyqBfbbReTH3uVx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015002","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Inspects a public HTTPS endpoint's HTTP 402 payment requirements, Base/USDC pricing, and Bazaar discovery schema without actually paying for it.","exampleAgentPrompt":"Before I pay anything, can you inspect the HTTP 402 payment requirements and USDC price for https://some-paid-api.example.com/v1/data and show me its Bazaar discovery schema?","exampleUseCases":[{"title":"Budget check before agent payment","prompt":"Before my agent pays for access to https://api.somex402service.com/query, can you read its x402 payment requirements and tell me exactly how much USDC it charges per call and on which chain?"},{"title":"Discover Bazaar schema for a new API","prompt":"I found this endpoint https://marketplace-api.example.com/v1/predict listed on Bazaar — can you pull its discovery schema and payment metadata so I know what fields it expects and what it costs?"},{"title":"Audit x402 pricing across candidate endpoints","prompt":"I'm evaluating three x402 APIs and want to compare pricing — can you inspect https://chaindata-api.example.com/v1/rpc and return its full HTTP 402 headers, Base/USDC price, and any Bazaar discovery info without actually making a payment?"}],"resultDescription":"Returns the target endpoint's HTTP 402 payment requirements including the required payment token (USDC), price, chain (Base), payment header format, and any Bazaar discovery schema metadata — all retrieved without executing a payment transaction.","failureModes":["Target URL is not publicly reachable (network error or DNS failure)","Target endpoint does not return HTTP 402 or has no x402 payment headers","Bazaar discovery schema is absent or malformed on the target","Invalid or non-HTTPS URL provided","Rate limiting or upstream timeout from the inspected origin"],"whenToPreferThis":"Use this endpoint when an agent needs to understand the cost and payment requirements of an x402-gated API before committing to a payment, or when cataloguing/auditing Bazaar-listed endpoints for pricing and schema discovery. Prefer this over directly calling the paid endpoint when you want a zero-cost pre-check of payment metadata.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-02T18:32:59.157Z","isFirstParty":false,"canonicalSlug":"no-hands-ai-endpoint-preflight-http-402-x402-inspector-4108d489"}