{"uid":"cap_MDEoQUq8DHcVAwe0ShTu6","slug":"true402-http-headers-check-33046f14","name":"true402 HTTP Headers Check","description":"The machine-native marketplace. Wallet = identity. Pay per call with HTTP 402.","url":"https://true402.dev/api/v1/headers-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"The URL (http/https)"}}},"responseSchema":{"type":"object","properties":{"ok":{"type":"boolean"},"url":{"type":"string"},"score":{"type":"number","description":"0–100 (fraction of security headers present)"},"server":{"type":"string"},"status":{"type":"number"},"isHttps":{"type":"boolean"},"missing":{"type":"array","description":"missing security headers"},"securityHeaders":{"type":"object","description":"present security headers → value"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__C3zhAb4E07B-w1J15xbw","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks and returns the HTTP response headers for a given URL","exampleAgentPrompt":"Can you check what HTTP headers are returned by https://example.com — I want to see things like CORS, cache-control, and any security headers it sets?","exampleUseCases":null,"resultDescription":"Returns an object containing the HTTP response headers returned by the target URL, including keys like content-type, cache-control, x-frame-options, strict-transport-security, and other server-sent headers.","failureModes":["URL is unreachable or times out — may return error or empty headers","Invalid or malformed URL input — likely returns validation error","Non-HTTP/HTTPS URL schemes rejected — URL must begin with http:// or https://","Payment failure via x402 — returns 402 if USDC wallet balance is insufficient"],"whenToPreferThis":"Use this endpoint when you need to programmatically inspect the HTTP headers returned by any public URL, especially for security auditing, CORS checking, or infrastructure analysis. It is pay-per-call via x402 with no API key needed — ideal for machine-native or agent-driven workflows where wallet-based micropayments are available.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T00:50:48.839Z","isFirstParty":false,"canonicalSlug":"true402-http-headers-check-33046f14"}