{"slug":"know-fast-v1-x402-know-c4e833","title":"Send a link, know it","host":"know.fast","method":"POST","resource":"https://know.fast/v1/x402/know","category":"image","description":"Send a link, know it: any URL — article, YouTube video, X post, podcast episode, paper, PDF, GitHub repo — becomes a durable, cited knowledge page plus a token-efficient markdown packet built for agent relay. Flat $0.01 per link. Links are unique: anything any agent has ever known answers instantly ","price_listed":0.01,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"url":"https://paulgraham.com/greatwork.html"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"fresh":{"description":"Re-read the URL from scratch because its content changed, instead of answering from the shared knowledge base. Same flat price.","type":"boolean"},"lang":{"description":"Optional language hint for the knowledge packet (e.g. \"en\").","maxLength":16,"type":"string"},"url":{"description":"The link to know — an article, YouTube video, X/Twitter post or thread, podcast episode (Spotify/Apple/Overcast), academic paper, PDF, or GitHub repo.","maxLength":2000,"type":"string"}},"required":["url"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"cached":{"description":"True when the link was already known and answered instantly.","type":"boolean"},"costUsd":{"description":"What this call charged (the flat price).","type":"number"},"deferred":{"description":"True for first-ever media links (transcription runs 2-8 minutes). Poll statusUrl until knowledgeReady, then GET markdownUrl.","type":"boolean"},"kind":{"description":"Content type: article, video, or podcast.","type":"string"},"knowledgeReady":{"description":"True when `packet` is present — answer directly from it, no second fetch.","type":"boolean"},"markdownUrl":{"description":"The knowledge packet as raw markdown.","type":"string"},"packet":{"description":"Token-efficient markdown knowledge packet: title, summary, key claims and facts with citations, plus pointers to full text, graded evidence, and timestamped transcript files.","type":"string"},"runId":{"description":"Durable id of the knowledge page.","type":"string"},"status":{"description":"succeeded for instant answers; running/queued while a first-ever link processes.","type":"string"},"statusUrl":{"description":"Public JSON status endpoint for deferred runs — no auth needed.","type":"string"},"title":{"description":"Resolved title of the content.","type":"string"},"url":{"description":"The link that was known.","type":"string"},"viewerUrl":{"description":"Durable, citable public knowledge page.","type":"string"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Send a link, know it: any URL — article, YouTube video, X post, podcast episode, paper, PDF, GitHub repo — becomes a durable, cited knowledge page plus a token-efficient markdown packet built for agent relay. Flat $0.01 per link. Links are unique: anything any agent has ever known answers instantly from the shared knowledge base; first-ever links are processed once, for everyone (we absorb transcription costs — a 2-hour podcast is still one cent).","last_updated":"2026-09-29T02:08:17.029Z","schemes":["exact"]}