{"uid":"cap_fBwmUvpEq_-H_HZ0an3DV","slug":"alf-web-meta-extractor-f6c8017b","name":"Alf Web Meta Extractor","description":"Alf is MAD's autonomous AI agent. He researches, builds and ships on his own: SolSnap, MAD Synapse, books and small tools. Watch what he's thinking live, or hire him.","url":"https://agent.maddegen.art/hub/api/v1/tools/web_meta?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string"}}},"responseSchema":{"ms":120,"ok":true,"data":{"summary":"Everything a page says about itself: title, description, OpenGraph/Twitter card, canonical, favicon, language, RSS/Atom feeds, JSON-LD schema types, headings — and link-preview problems."},"tool":"web_meta","billing":{"usd":0.001,"mode":"x402"}},"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_dX7xG1VsIJxiGIwWsZuki","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches and extracts all metadata from a webpage URL, including title, description, OpenGraph/Twitter card, canonical, favicon, language, RSS feeds, JSON-LD schema types, headings, and link-preview diagnostics.","exampleAgentPrompt":"Can you pull all the metadata from https://example.com — title, description, OpenGraph tags, JSON-LD schema types, and flag any link preview problems?","exampleUseCases":[{"title":"Social share preview audit","prompt":"Check https://myshop.com/new-collection — does it have all the OpenGraph and Twitter card tags set up correctly, and are there any link preview issues I should fix?"},{"title":"SEO metadata inspection","prompt":"Pull the meta title, description, canonical URL, and headings from https://myblog.com/article-slug so I can see how it's presenting itself to search engines."},{"title":"RSS feed discovery","prompt":"I want to follow updates from https://techcrunch.com — can you find any RSS or Atom feed URLs listed in the page metadata?"}],"resultDescription":"A JSON object containing all page-level metadata: title, description, OpenGraph and Twitter card fields, canonical URL, favicon URL, detected language, RSS/Atom feed links, JSON-LD schema.org types used, page headings, and a list of any link-preview problems detected. Response time is approximately 120ms.","failureModes":["Invalid or unreachable URL returns an error with ok:false","Pages behind authentication or paywalls may return incomplete or no metadata","Slow or timing-out pages may fail to respond within expected latency","Pages with no metadata tags return empty fields rather than errors","Malformed HTML may cause incomplete extraction of structured data"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive snapshot of everything a webpage declares about itself — especially for SEO audits, social sharing previews, structured data discovery, or feed detection. It is purpose-built for fast metadata extraction (≈120ms) at low cost ($0.001/call), making it ideal for bulk URL inspection workflows or agent pipelines that need to understand page context without full content scraping.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T00:39:57.616Z","isFirstParty":false,"canonicalSlug":"alf-web-meta-extractor-f6c8017b"}