{"slug":"scrooge-x402-tool-mill-vercel-app-v1-watch-a35640","title":"Watch one public page for 7 days","host":"scrooge-x402-tool-mill.vercel.app","method":"POST","resource":"https://scrooge-x402-tool-mill.vercel.app/v1/watch","category":"other","description":"Watch one public page for 7 days. Checks hourly. When the content hash changes, POST {watch_id,url,old_fingerprint,new_fingerprint,changed_at} to your https callback (5s timeout, one retry). POST JSON {\"url\":\"https://example.com\",\"callback_url\":\"https://example.com/hook\"}. Returns {watch_id,url,expi","price_listed":0.1,"price_asked":0.1,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":712,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"callback_url":"https://example.com/hook","url":"https://example.com"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"callback_url":{"description":"Public https URL that receives one POST when the page content hash changes","format":"uri","type":"string"},"url":{"description":"Public http(s) URL to fetch (SSRF-safe; private/link-local blocked)","format":"uri","type":"string"}},"required":["url","callback_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":{"additionalProperties":false,"properties":{"expires":{"description":"When the 7-day watch ends","format":"date-time","type":"string"},"status_url":{"description":"GET this for status. The callback URL is not included.","type":"string"},"url":{"description":"Page being watched","type":"string"},"watch_id":{"description":"Id for the free status URL","type":"string"}},"required":["watch_id","url","expires","status_url"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-10","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.1,"price_match":true,"latency_ms":712,"error":null}],"description_full":"Watch one public page for 7 days. Checks hourly. When the content hash changes, POST {watch_id,url,old_fingerprint,new_fingerprint,changed_at} to your https callback (5s timeout, one retry). POST JSON {\"url\":\"https://example.com\",\"callback_url\":\"https://example.com/hook\"}. Returns {watch_id,url,expires,status_url}. Free status is GET /v1/watch/:id and does not show the callback. At 500 active watches, POST returns 503 before payment. $0.10 USDC on Base (eip155:8453). No API key.","last_updated":"2026-10-08T06:27:14.817Z","schemes":["exact"]}