{"uid":"cap_zrb8qjNWvPTdRFicXR1_B","slug":"http-head-url-health-check-30ef7a0f","name":"HTTP HEAD URL Health Check","description":"Public URL status, latency, and response header subset for uptime and health agents","url":"https://vending-machine-seven.vercel.app/api/v/http-head","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"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"Public https:// URL"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"ms":{"type":"number"},"ok":{"type":"boolean"},"status":{"type":"number"},"headers":{"type":"object"},"service":{"type":"string"}}}}}}},"responseSchema":null,"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_wTBsAqfokol3OYWVs5deR","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":"Performs an HTTP HEAD request against a public URL and returns the status code, latency in milliseconds, and a subset of response headers for uptime and health monitoring","exampleAgentPrompt":"Can you do a quick health check on https://api.example.com — tell me if it's up, how fast it responded, and what HTTP status code it returned?","exampleUseCases":null,"resultDescription":"Returns a JSON object with: ok (boolean indicating success), status (HTTP status code integer), ms (round-trip latency in milliseconds), headers (subset of response headers), and service (string label for the target service).","failureModes":["Non-HTTPS or private/local URLs rejected — only public https:// URLs accepted","Target URL is unreachable or DNS fails — returns ok: false with no status","Target returns a non-2xx status — ok may be false, status code still returned","Timeout on slow upstream — returns ok: false, latency may still be reported","Malformed or missing url query parameter — returns validation error"],"whenToPreferThis":"Use this endpoint when you need a lightweight, paid uptime signal for a public HTTPS URL without downloading the full response body. Ideal for agent-driven health monitoring, brand protection pipelines, or pre-flight checks before hitting a dependency. Prefer this over a full GET-based scrape when you only need status, latency, and headers. Part of a suite that also offers TLS cert checks, DNS lookups, and redirect chain following on the same host.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:31:13.053Z","isFirstParty":false}