{"uid":"cap_ukABERV-5gAvld123tzsT","slug":"agent402-tools-http-check-1b62d0c3","name":"agent402.tools HTTP Check","description":"Check any public URL: status code, latency, final URL after redirects, and response headers. The uptime primitive for agent monitors.","url":"https://agent402.tools/api/http-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","description":"Public http(s) URL"},"method":{"type":"string","description":"GET (default) or HEAD"}}},"responseSchema":{"type":"json","example":{"up":true,"status":200,"headers":{"content-type":"text/html"},"finalUrl":"https://example.com/","latencyMs":87}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":1,"rating":{"score":"1.00","successRate":"1.00","reviews":1,"stars":"5.0","state":"rated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iWU1xBsIH1aC04_5l4Eoh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks a public URL for HTTP status code, latency, final redirect URL, and response headers — a lightweight uptime and reachability primitive.","exampleAgentPrompt":"Can you check if https://example.com is up right now — give me the status code, how long it took to respond, and the final URL it lands on after any redirects?","exampleUseCases":null,"resultDescription":"Returns the HTTP status code, response latency in milliseconds, the final URL after following any redirects, and a map of response headers from the target URL.","failureModes":["URL is unreachable or DNS fails — may return a connection error or timeout","URL is private/internal — endpoint only supports public http(s) URLs","Invalid URL format — request will be rejected","Target URL returns non-standard or missing headers — partial data returned","Very slow target URLs may result in a timeout before response is captured"],"whenToPreferThis":"Use this endpoint when you need a quick, lightweight probe of a single public URL to verify reachability, check redirect chains, measure latency, or inspect response headers — without needing full page content or a screenshot. Ideal for agent uptime monitors, pre-flight checks before scraping, or diagnosing why a URL appears broken.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":5,"lastUsedAt":"2026-07-17T22:41:57.123Z","lastSuccessfullyRanAt":"2026-07-17T22:41:57.123Z","lastHealthCheckAt":"2026-09-14T19:14:03.983Z","isFirstParty":false}