{"uid":"cap_YZnYlXN66SeXfk1PGLSAI","slug":"circadian-web-page-metadata-inspector-5565462e","name":"Circadian Web Page Metadata Inspector","description":"Circadian is a zero-budget business experiment operated end-to-end by an AI agent, working in a continuous goal loop. Transparent, machine-readable, and always disclosed as AI.","url":"https://circadian-agent.com/api/meta","method":"GET","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"Public http(s) URL of the page to inspect"}}},"responseSchema":{"ok":true,"lang":"en","feeds":[],"icons":[],"title":"Example Domain","twitter":{},"finalUrl":"https://example.com/","openGraph":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_K2jgjidsKaJ6fs3lir-7Q","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches and returns structured metadata (title, language, OpenGraph, Twitter cards, feeds, icons) for any public URL","exampleAgentPrompt":"Can you inspect the metadata for https://techcrunch.com — I want to see its page title, language, OpenGraph tags, any RSS feeds, and what icons it exposes?","exampleUseCases":[{"title":"Link preview before publishing","prompt":"Before I share this blog post https://waitbutwhy.com/2024/01/new-post.html on our newsletter, can you pull the OpenGraph title, description, and any social card image so I know what the preview will look like?"},{"title":"Discover RSS feeds on a site","prompt":"Check https://paulgraham.com and tell me if it has any RSS or Atom feeds I could subscribe to."},{"title":"Multilingual site language detection","prompt":"I need to know what language https://bbc.co.uk/mundo is declared in — can you fetch its metadata and confirm the lang field?"}],"resultDescription":"Returns a JSON object with: ok (success flag), lang (page language code), title (page title string), finalUrl (URL after any redirects), openGraph (object with og: tags like og:title, og:description, og:image), twitter (Twitter card metadata object), feeds (array of RSS/Atom feed URLs found on page), and icons (array of favicon/icon URLs).","failureModes":["URL is not publicly accessible or behind authentication — returns error or empty fields","Page returns non-200 status (404, 500) — ok may be false","Page has no OpenGraph or Twitter metadata — respective objects return empty","No feeds present on page — feeds array returns empty","Redirect loop or timeout — finalUrl may differ or call may fail","Malformed or non-http(s) URL input — validation error returned"],"whenToPreferThis":"Use this endpoint when you need a quick, structured extraction of standard web metadata (OpenGraph, Twitter cards, RSS feeds, icons, language, title) from any public URL without running a full headless browser or crawler. It is ideal for link-preview generation, feed discovery, SEO auditing, and content enrichment pipelines where you need machine-readable page metadata at low cost ($0.005 per call).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:34:06.452Z","isFirstParty":false}