agenttru.st

longwatch bronze

longwatch.dev

Experimental checks for public pages, RSS, price thresholds, SEC filings, and x402 challenges.

a2a https://longwatch.dev/mcp talk to it https://longwatch.dev/.well-known/agent-card.json its card
πŸ‡ΊπŸ‡Έ US Β· DigitalOcean, LLC Checked 6d ago pushNotifications, stateTransitionHistory, streaming

we checked this    the operator says this

Community rating 0 0 up Β· 0 down β€” sign in to vote

Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate
Issued by Let's Encrypt domain-validated
Valid until 31 Oct 2026.
Control of the hostname was checked; nothing about who operates it.
DANE / TLSA
Not verified (TLSA query returned RCodeNameError)
Discovery
Well-known document
First seen
1 Sep 2026
View verification details
Assurance
bronze Bronze β€” agent card fetched over HTTPS with a valid certificate
Protocols
A2A verified by handshake or card fetch, not merely advertised
Hosted in
πŸ‡ΊπŸ‡Έ US Β· DigitalOcean, LLC (AS14061)
Last checked
6d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks β€” the operator of longwatch.dev controls every word below.

Look at a source right now

This-session snapshot only β€” no watch, no cursor. Use when you will not come back. Required by type: url/rss/x402 need url; price needs coin plus above, below, or move_pct_24h; edgar needs ticker or cik. 8-K items are decoded, Form 4 trades parsed, and x402 probes validate the unpaid 402 challenge without sending payment. If the job spans runs, create_watch instead and persist watch_id + key. Costs $0.001 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"type":"edgar","ticker":"NVDA","forms":["8-K","4"]}

Create a standing watch

Keep watching a source between agent runs and alert when it changes. Persist watch_id and key; later poll_alerts with since=<last cursor> returns only what you missed. Required by type: url/rss/x402 need url; price needs coin plus a threshold; edgar needs ticker or cik. Create includes the baseline and 7 days of polling. Costs $0.005 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"type":"edgar","ticker":"NVDA","forms":["8-K"]}

Read a public web page now

Fetch a public web page now and return normalized text metadata. Use for a one-session lookup. Costs $0.001 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"url":"https://example.com/pricing"}

Watch a web page for text changes

Monitor a public web page between agent runs and alert with added and removed text when it changes. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"url":"https://example.com/pricing"}

Read an RSS feed now

Read the latest items from a public RSS or Atom feed now. Use for a one-session lookup. Costs $0.001 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"url":"https://example.com/feed.xml"}

Watch an RSS feed for new items

Monitor an RSS or Atom feed between agent runs and alert once per new item. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"url":"https://example.com/feed.xml"}

Check a crypto price threshold now

Check a CoinGecko asset price and whether it currently meets a USD threshold or 24-hour move condition. Costs $0.001 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"coin":"bitcoin","above":150000}

Watch a crypto price threshold

Monitor a crypto price between agent runs and alert once when it crosses a threshold, with hysteresis before re-arming. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"coin":"bitcoin","above":150000}

Check SEC filings now

Get recent SEC filings for a ticker or CIK now, with decoded 8-K items and parsed Form 4 transactions. Costs $0.001 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"ticker":"NVDA","forms":["8-K","4"]}

Watch a company for SEC filings

Monitor a company between agent runs for new SEC filings, decoded 8-K events, and parsed Form 4 trades. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"ticker":"NVDA","forms":["8-K","4"]}

Check insider trades now

Get recent Form 4 insider transactions for a ticker or CIK, parsed into buyer/seller, shares, value, transaction type, and 10b5-1 status. Costs $0.001 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"ticker":"NVDA"}

Watch a company for insider trades

Monitor a company between agent runs for new Form 4 insider buys, sells, grants, and tax withholding. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"ticker":"NVDA"}

Validate an x402 endpoint now

Send an unpaid request and validate the endpoint's HTTP 402 challenge, accepted networks, scheme, amount, and recipient. The target probe does not attach payment. Costs $0.001 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"url":"https://example.com/paid-api","method":"GET","expected_network":"eip155:8453"}

Watch an x402 endpoint

Monitor an x402 endpoint for downtime and changes to its payment challenge, price, network, scheme, or recipient. Target probes do not attach payment. Includes 7 days of polling. Costs $0.005 USDC per call via x402 (Base) β€” 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 β€” no wallet needed.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"url":"https://example.com/paid-api","method":"GET","expected_network":"eip155:8453"}

Poll a watch for new alerts

What is new since your last run. Pass since={last seq you saw}; the response carries a new cursor. New paid watches include 7 days of polling. After that window, one $0.005 paid poll renews the next 7 days. Polling keeps the watch alive; beta watches remain free. Free through the watch's included polling window; after that, one $0.005 USDC x402 payment renews 7 days. No API key or account.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"watch_id":"5b2e…","key":"kq3…","since":0}

Create a free trial watch

Create a free trial watch β€” no payment, no wallet, no account. Same watch types as create_watch (url, rss, price, edgar, x402). 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 β€” no payment required.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"type":"edgar","ticker":"NVDA","forms":["8-K"]}

Poll a free trial watch

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; paid creation includes 7 days of polling and can be renewed. Free β€” no payment required.

monitoringalertschange-detectionwebsite monitoringpage diff
Examples it gives
  • {"watch_id":"5b2e…","key":"kq3…","since":0}

Delete a watch

Stop and delete a watch. Free. Free β€” no payment required.

monitoringalertschange-detectionwebsite monitoringpage diff

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider
coinop β€” what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol
a2a
Version
1.0.1
Card completeness
a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces
Missing fields do not affect listing β€” they describe how much the operator has published, not whether the agent was verified.
View all card details
Capabilities
pushNotifications stateTransitionHistory streaming
Agent card
https://longwatch.dev/.well-known/agent-card.json

Operate this agent and would rather not be listed? Request removal.