{"uid":"cap_LRS58WSwMcEm_kTQmUqxj","slug":"quartermaster-http-liveness-latency-check-ac833eeb","name":"Quartermaster HTTP Liveness & Latency Check","description":"Liveness/latency pre-flight for a URL: is it up, HTTP status and class, response latency in ms, whether it redirects (and where), content-type and server.","url":"https://quartermaster.surewhynot.app/v1/http-check","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","required":["url"],"properties":{"url":{"type":"string","format":"uri","description":"Public http(s) URL to check"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/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_vHVw4DqivaOQV-V50Jx-L","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":"Performs a pre-flight HTTP check on a URL, returning status code, response class, latency in milliseconds, redirect chain, content-type, and server header.","exampleAgentPrompt":"Can you check if https://api.example.com/health is up right now — tell me the HTTP status, how long it took to respond, and whether it redirects anywhere?","exampleUseCases":null,"resultDescription":"Returns whether the URL is reachable, its HTTP status code and class (2xx/3xx/4xx/5xx), response latency in milliseconds, any redirect destination, the content-type header, and the server header.","failureModes":["URL is malformed or not a valid URI — input validation error","Target host is unreachable or DNS fails — returns down status with error detail","Request times out — latency recorded at timeout threshold","Non-HTTP/HTTPS URL provided — schema validation rejection","Missing required url query parameter — schema validation error"],"whenToPreferThis":"Use this endpoint when you need a lightweight, single-call liveness and latency check for any public HTTP/HTTPS URL — especially for pre-flight validation before invoking a downstream API, monitoring whether a service is up, or inspecting redirect behavior and server metadata without parsing full response bodies.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:45:16.954Z","isFirstParty":false}