{"uid":"cap_h2yJvbxjMSLNOKqgZgndu","slug":"site-withzero-ai-head-s-slug-check-hosted-site-existence-and-metadata-b4bfd67c","name":"HEAD /s/:slug – Check Hosted Site Existence and Metadata","description":"HEAD variant of /s/:slug.","url":"https://site.withzero.ai/s/:slug?utm_source=zero.xyz","method":"HEAD","headers":{},"bodySchema":null,"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"unknown","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"unknown_unparsed","priceSource":"registry","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":"unknown","summary":"price unknown","primary":{"kind":"unknown","protocol":"mpp","network":"tempo","amountUsd":null,"per":"call","confidence":"unknown"},"accepted":[{"kind":"unknown","protocol":"mpp","network":"tempo","amountUsd":null,"per":"call","confidence":"unknown"}]},"paymentMethods":[{"uid":"pm_2pzc9aqBMtsSK47wlpsMz","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"unknown","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":"site.withzero.ai","brandSlug":"site-withzero-ai-mpp","brandBaseUrl":"https://site.withzero.ai","brandDocsUrl":null,"whatItDoes":"Returns HTTP headers for a hosted site slug without downloading its body, allowing existence checks, cache validation, and metadata retrieval.","exampleAgentPrompt":"Can you check if the hosted page at slug 'my-launch-page' on withzero.ai is still live and accessible, without actually downloading the content?","exampleUseCases":[{"title":"Verify site deployment succeeded","prompt":"I just published a new page with slug 'product-launch-2025' on withzero.ai — can you confirm it's live and accessible without loading the full HTML?"},{"title":"Check cache freshness before re-fetch","prompt":"Before re-downloading the content for slug 'team-bio', can you just check its headers to see if it's been updated since yesterday?"},{"title":"Probe whether a slug is already taken","prompt":"I want to know if the slug 'about-us' is already in use on withzero.ai — just do a quick header check to see if something is there."}],"resultDescription":"HTTP response headers including status code (200 if exists, 404 if not found), content-type, cache-control, ETag, and last-modified — with no response body transferred.","failureModes":["404 Not Found if the slug does not exist or has been deleted","410 Gone if the site was deleted early","503 if the hosting service is temporarily unavailable","Unexpected 301/302 redirect if a custom domain alias is in effect"],"whenToPreferThis":"Use this endpoint when you need to check the existence, freshness, or metadata of a hosted page without the overhead of downloading its full HTML body — ideal for polling, existence checks, cache validation, or pre-flight verification before a GET request.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:32:27.120Z","isFirstParty":true,"canonicalSlug":"site-withzero-ai-head-s-slug-check-hosted-site-existence-and-metadata-b4bfd67c"}