{"protocolVersion":"0.3.0","name":"longwatch","description":"You are ephemeral. longwatch remembers what you already saw. Create a watch, persist watch_id + key, poll later for only what you missed — pages, RSS, crypto prices, SEC filings. No API key, no account — pay per call in USDC.","url":"https://longwatch.dev/mcp","preferredTransport":"streamable-http","provider":{"organization":"coinop","url":"https://coinop.dev"},"version":"1.0.1","documentationUrl":"https://longwatch.dev/llms.txt","iconUrl":"https://longwatch.dev/icon.svg","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"check_now","name":"Look at a source right now","description":"This-session snapshot only — no watch, no cursor. Use when you will not come back. Types: url, rss, price, edgar (8-K items decoded, Form 4 trades parsed). If the job spans runs, create_watch instead and persist watch_id + key. Costs $0.001 USDC per call via x402 (Base or Solana) — no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch — no wallet needed.","tags":["monitoring","alerts","change-detection","website monitoring","page diff"],"examples":["{\"type\":\"edgar\",\"ticker\":\"NVDA\",\"forms\":[\"8-K\",\"4\"]}"]},{"id":"create_watch","name":"Create a standing watch","description":"Keep watching a source between agent runs. Persist watch_id and key; later poll_alerts with since=<last cursor> returns only what you missed. Types: url (page text diff), rss (new items), price (threshold / 24h move), edgar (new filings). Create includes the baseline so the next poll is not empty. Costs $0.005 USDC per call via x402 (Base or Solana) — no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch — no wallet needed.","tags":["monitoring","alerts","change-detection","website monitoring","page diff"],"examples":["{\"type\":\"edgar\",\"ticker\":\"NVDA\",\"forms\":[\"8-K\"]}"]},{"id":"poll_alerts","name":"Poll a watch for new alerts","description":"What is new since your last run. Pass since={last seq you saw}; the response carries a new cursor. Polling keeps the watch alive (expires after 7 days without a poll). Watches created during the free beta remain free to poll. Costs $0.001 USDC per call via x402 (Base or Solana) — no API key, no account. Calling without payment returns 402 with the payment requirements. Free alternative: GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch — no wallet needed.","tags":["monitoring","alerts","change-detection","website monitoring","page diff"],"examples":["{\"watch_id\":\"5b2e…\",\"key\":\"kq3…\",\"since\":0}"]},{"id":"try_watch","name":"Create a free trial watch","description":"Create a free trial watch — no payment, no wallet, no account. Same watch types as create_watch (url, rss, price, edgar). The trial runs for 24h, one at a time per caller, and cannot use webhooks. Use this first to see what the alerts look like before paying. Free — no payment required.","tags":["monitoring","alerts","change-detection","website monitoring","page diff"],"examples":["{\"type\":\"edgar\",\"ticker\":\"NVDA\",\"forms\":[\"8-K\"]}"]},{"id":"poll_trial","name":"Poll a free trial watch","description":"Poll a trial watch created by try_watch. Free. Pass since={last seq you saw}; the response carries a new cursor. Once the trial expires, create a paid watch with create_watch for the same behaviour without a time limit. Free — no payment required.","tags":["monitoring","alerts","change-detection","website monitoring","page diff"],"examples":["{\"watch_id\":\"5b2e…\",\"key\":\"kq3…\",\"since\":0}"]},{"id":"delete_watch","name":"Delete a watch","description":"Stop and delete a watch. Free. Free — no payment required.","tags":["monitoring","alerts","change-detection","website monitoring","page diff"]}],"x-payment":{"protocol":"x402","networks":["base","solana"],"prices":{"create":"$0.005","poll":"$0.001","credits":"$0.05"}},"x-free-trial":"GET https://longwatch.dev/demo for a free NVDA Form 4 sample, or POST https://longwatch.dev/try for a 24h watch — no wallet needed."}