{"uid":"cap_4Uj9cDhIUmuXkfFHtuHzO","slug":"unprice-http-headers-fetcher-4835c0a7","name":"unprice HTTP Headers Fetcher","description":"Tiny paid web services for agents. Pay per request with USDC on Base via x402, plus non-x402 Base USDC tx-hash checkouts for Merchant Feed Audit, Base USDC receipts, and recent wallet statements.","url":"https://volkov.evgeny.m2.fvds.ru/pay/headers?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","properties":{"url":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"url":"https://example.com","status":200,"headers":{"content-type":"text/html"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_7xJV9r58TzZwZwMxN7-rp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches the HTTP response headers of any given URL via a pay-per-request proxy, returning status code and header fields","exampleAgentPrompt":"Can you fetch the HTTP response headers for https://example.com and tell me what status code and content-type it returns?","exampleUseCases":[{"title":"Check CORS headers on an API","prompt":"Can you probe https://api.myservice.com/v1/data and tell me what CORS headers it returns? I need to know if it has an Access-Control-Allow-Origin header."},{"title":"Verify redirect behavior of a URL","prompt":"Fetch the headers for https://old.mysite.com and tell me the status code — I want to know if it's doing a 301 or 302 redirect."},{"title":"Inspect caching policy of a CDN asset","prompt":"Can you check the headers returned by https://cdn.example.com/assets/logo.png? I specifically want to see the Cache-Control and ETag values."}],"resultDescription":"A JSON object containing the target URL, the HTTP status code returned, and a map of HTTP response header names to their values (e.g. content-type, server, cache-control).","failureModes":["Target URL is unreachable or times out — may return an error or empty headers","Invalid or malformed URL input causes a request failure","Target server returns no headers or blocks automated requests","Payment failure on Base network prevents the request from being processed"],"whenToPreferThis":"Use this endpoint when you need a quick, lightweight probe of a URL's HTTP headers and status code without downloading the full response body. It is especially useful for checking content-type, CORS policy, cache directives, redirect status, or server identity cheaply at $0.002 per call via USDC on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:38:05.565Z","isFirstParty":false,"canonicalSlug":"unprice-http-headers-fetcher-4835c0a7"}