{"name":"offercheck","version":"0.3.0","what":"Pay-per-call web and market-data tools for AI agents. No API key, no signup: pay per request with USDC on Base using the x402 protocol.","endpoints":{"POST /v1/read":{"price":"$0.001","body":{"url":"https://example.com/blog/post","max_chars":50000},"returns":"clean markdown of the main content, title, description, canonical, lang, author, published_time, links, content hash, fetch time"},"POST /v1/verify/offer":{"price":"$0.01","body":{"url":"https://shop.example.com/products/widget"},"returns":"price, currency, availability, product identity, evidence, confidence"},"POST /v1/check/url":{"price":"$0.002","body":{"url":"https://example.com/page"},"returns":"alive, final_url, redirect_chain, soft_404, title, domain age (RDAP), robots policy for AI agents, archive snapshot, confidence"},"POST /v1/fx":{"price":"$0.002","body":{"from":"USD","to":"EUR,GBP","amount":100,"date":"optional YYYY-MM-DD"},"returns":"ECB reference rate and converted amount per target currency, rate date, source"},"POST /v1/price":{"price":"$0.002","body":{"ids":"btc,eth,base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","vs":"USD"},"returns":"price per asset (USD or any ECB fiat), confidence, priced_at, source"},"GET /demo/verify/offer?url=":"free, rate-limited demo","GET /demo/check/url?url=":"free, rate-limited demo","GET /demo/read?url=":"free, rate-limited demo","GET /demo/fx?from=USD&to=EUR&amount=100":"free, rate-limited demo","GET /demo/price?ids=btc,eth&vs=USD":"free, rate-limited demo","GET /stats":"public funnel stats"},"payment":{"protocol":"x402 v2","scheme":"exact","network":"eip155:8453","asset":"USDC","payTo":"0xB9721FDD2EC85F7f604F5BBcA2292d7C4ff6B62c","facilitator":"https://facilitator.payai.network","how":"Call the endpoint; you get HTTP 402 with a PAYMENT-REQUIRED header describing the price. Sign an EIP-3009 USDC authorization with your wallet and retry with PAYMENT-SIGNATURE. Client libraries: @x402/fetch, x402-axios, x402 (python), Coinbase AgentKit, OpenClaw x402 skill."},"discovery":{"well_known":"https://offercheck.offercheck.workers.dev/.well-known/x402","openapi":"https://offercheck.offercheck.workers.dev/openapi.json","llms":"https://offercheck.offercheck.workers.dev/llms.txt"},"operator":"solo experiment; contact offercheck@alexmilman.co","bot_ua":"offercheck/0.1 fetches the URLs you submit; see /bot"}