{"uid":"cap_hGjmzVx-DegzGx84SpLtn","slug":"http-policy-evidence-checker-4865c4c6","name":"HTTP Policy Evidence Checker","description":"Paid deterministic utility APIs settled in native USDC on Base.","url":"https://x402-url-evidence.vercel.app/api/http-policy","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":["url"],"properties":{"url":{"type":"string"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"https":true,"status":200,"finalUrl":"https://example.com/","observedHeaderCount":3}},"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_CA1ONhg_PPI_RRAGW5Tth","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":"Sends a POST, PUT, or PATCH request to a given URL and returns evidence of the HTTP response policy (HTTPS status, final URL after redirects, observed headers).","exampleAgentPrompt":"Can you probe https://api.example.com/submit with a POST request and a JSON body containing {\"url\": \"https://api.example.com/submit\"} to check whether it uses HTTPS, what status code it returns, and how many response headers it sends back?","exampleUseCases":[{"title":"Audit API endpoint HTTPS compliance","prompt":"Check whether https://payments.myapp.com/checkout enforces HTTPS — send it a POST request with a JSON body and tell me the status code, whether HTTPS is active, and the final URL it lands on."},{"title":"Detect redirect chain on a form endpoint","prompt":"I need to know where https://old.example.com/form ends up after a POST — can you probe it with a JSON body and report back the final URL and HTTP status?"},{"title":"Inspect header count on a partner API","prompt":"Can you send a POST with a JSON body to https://partner-api.acme.io/webhook and tell me how many response headers it returns and whether it's properly serving HTTPS?"}],"resultDescription":"Returns a JSON object confirming whether the target URL uses HTTPS (boolean), the HTTP status code received, the final URL after any redirects, and the count of observed response headers.","failureModes":["Target URL is unreachable or times out — may return a network error or non-200 status","URL does not accept POST/PUT/PATCH — returns 405 Method Not Allowed","Malformed input schema (missing required fields like 'url', 'type', 'method', 'bodyType') — returns validation error","Target URL returns unexpected content type — may produce parsing issues","Payment not settled — x402 payment required error before request is processed"],"whenToPreferThis":"Use this endpoint when you need deterministic, paid evidence of HTTP policy for a specific URL — particularly when you need to confirm HTTPS usage, trace redirects on non-GET requests, or audit response header counts for POST/PUT/PATCH endpoints. Prefer this over browser-based or GET-only tools when you specifically need to test write-method HTTP behavior with a JSON, form-data, or text body.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:40:56.298Z","isFirstParty":false}