{"slug":"x402-gateway-blackwoodstate8-workers-dev-v1-x402-check-10a4f4","title":"Use when you need an x402 endpoint test or validation of a paid API before integ","host":"x402-gateway.blackwoodstate8.workers.dev","method":"POST","resource":"https://x402-gateway.blackwoodstate8.workers.dev/v1/x402-check","category":"other","description":"Use when you need an x402 endpoint test or validation of a paid API before integrating or listing it. Do not use for actually paying the endpoint, or endpoints behind authentication. Returns JSON checking an x402 endpoint without paying: whether it answers 402, the parsed payment options (scheme, ne","price_listed":0.007,"price_asked":0.007,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":1421,"reported_calls_30d":4,"reported_payers_30d":2,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"url":"https://x402.org/protected"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"body":{"additionalProperties":{},"description":"JSON body to send with POST, e.g. {\"url\": \"https://example.com\"} (no payment is ever attached)","propertyNames":{"type":"string"},"type":"object"},"method":{"description":"HTTP method of the endpoint (GET when omitted)","enum":["GET","POST"],"type":"string"},"url":{"description":"Public http(s) URL of the x402 endpoint, e.g. https://x402.org/protected","maxLength":2048,"minLength":8,"type":"string"}},"required":["url"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"additionalProperties":false,"properties":{"accepts":{"items":{"additionalProperties":false,"properties":{"amount":{"type":["string","null"]},"amountUsd":{"type":["number","null"]},"asset":{"type":["string","null"]},"maxTimeoutSeconds":{"type":["number","null"]},"network":{"type":["string","null"]},"payTo":{"type":["string","null"]},"scheme":{"type":["string","null"]}},"required":["scheme","network","asset","amount","amountUsd","payTo","maxTimeoutSeconds"],"type":"object"},"type":"array"},"bazaar":{"additionalProperties":false,"properties":{"inputSchema":{"type":"boolean"},"outputSchema":{"type":"boolean"},"present":{"type":"boolean"}},"required":["present","inputSchema","outputSchema"],"type":"object"},"checkedAt":{"type":"string"},"finalUrl":{"type":"string"},"next":{"additionalProperties":false,"description":"Suggested next paid call in the same family (call it in a loop when the task continues)","properties":{"method":{"enum":["GET","POST"],"type":"string"},"sample":{"description":"Free fixed sample of the whole family","type":"string"},"service":{"description":"Service id of the suggested next paid call","type":"string"},"tool":{"description":"MCP tool name of the same call","type":"string"},"url":{"description":"Paid route of the next call","type":"string"},"useWhen":{"description":"When the next call is the right one","type":"string"}},"required":["service","tool","method","url","useWhen","sample"],"type":"object"},"problems":{"items":{"type":"string"},"type":"array"},"resource":{"anyOf":[{"additionalProperties":false,"properties":{"description":{"type":["string","null"]},"mimeType":{"type":["string","null"]},"url":{"type":["string","null"]}},"required":["url","description","mimeType"],"type":"object"},{"type":"null"}]},"status":{"type":"number"},"url":{"type":"string"},"version":{"type":["number","null"]},"x402":{"type":"boolean"}},"required":["url","finalUrl","status","x402","version","resource","accepts","bazaar","problems","checkedAt"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-18","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.007,"price_match":true,"latency_ms":1421,"error":null}],"description_full":"Use when you need an x402 endpoint test or validation of a paid API before integrating or listing it. Do not use for actually paying the endpoint, or endpoints behind authentication. Returns JSON checking an x402 endpoint without paying: whether it answers 402, the parsed payment options (scheme, network, asset, amount, payTo), Bazaar discovery metadata and problems found for 0.007 USDC per call. Typical response time 2500 ms (p95). Category: Infrastructure.","last_updated":"2026-10-18T11:38:12.404Z","schemes":["exact","upto"]}