longwatch.dev
longwatch.dev
· longwatch.dev
Monitoring API for AI agents. Look up a page, RSS feed, crypto price, or SEC filings in one call ($0.001), or create a standing watch ($0.005) and poll for structured alerts since a cursor. Form 4 insider trades are parsed; 8-K item codes are decoded. Pay per call in USDC over x402 on Base and Solana — no API key or account. GET /demo is a free NVDA sample.
longwatch.dev via a single DNS TXT record to add the
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Dispute or improve this rating
C
Conformance score: 64/100
C-grade: usable but has clear conformance issues, review the breakdown below.
click to expand breakdown ▾
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agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 invocations Public aggregate · no PII recordedNothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.
Card history
10 snapshots drifted 9× Every change toagent-card.json
| Captured | Hash | |
|---|---|---|
| 2026-08-25 00:43:29 current | fb6fc3e528a9… |
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| 2026-08-23 20:18:12 | fb6fc3e528a9… |
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| 2026-08-23 00:53:32 | fb6fc3e528a9… |
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| 2026-08-22 01:21:29 | fb6fc3e528a9… |
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| 2026-08-20 00:16:09 | 4724fb95d7ae… |
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| 2026-08-19 10:01:31 | 4724fb95d7ae… |
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| 2026-08-18 18:56:12 | 4724fb95d7ae… |
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| 2026-08-18 07:34:24 | c1b2e6bcd4cd… |
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| 2026-08-18 00:10:26 | c1b2e6bcd4cd… |
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| 2026-08-17 07:19:48 | 77d7ffab1b48… |
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GET /api/agents/longwatch.dev/snapshots.Endpoints
| Endpoint | Price | Currency |
|---|---|---|
https://longwatch.dev/check
|
0.001 | USDC |
https://longwatch.dev/watches/:id/alerts
|
0.001 | USDC |
0x8cb34360d7bb93d4386384d549d69ece30f1ab48 · basescan ↗
eth_getLogs on USDC Transfer events to the payment wallet.
single_payer_observed
2/5
Payer identities observed; a single payer accounts for effectively all observed volume.
single_day_concentration —
Most observed volume landed on a single day of the window.
daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap.
Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions.
Measured 2026-09-03.
get_agent_full and
payment_intelligence skills
on REST, A2A and MCP. API docs →
| Agent card | https://longwatch.dev/.well-known/agent-card.json |
| Provider | https://longwatch.dev |
| Docs | https://longwatch.dev/llms.txt |
Skills · 6 declared · mapped to canonical taxonomy
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 t…
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 t…
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…
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 …
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 wit…
Stop and delete a watch. Free. Free — no payment required.
Health · last 16 probes
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Audit-grade evidence bundle
JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against
our JWKS. See the methodology.
Raw agent card JSON
{
"_source": "agentic.market",
"service": {
"id": "longwatch-dev",
"name": "longwatch.dev",
"description": "",
"domain": "longwatch.dev",
"provider": "longwatch.dev",
"providerUrl": "",
"category": "",
"networks": [
"Base",
"solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
],
"enriched": false,
"endpoints": [
{
"url": "https://longwatch.dev/check",
"description": "One-shot look at a source. No watch is created. Types: url (current page text), rss (latest feed items), price (current USD price), edgar (recent SEC filings \u2014 8-K item codes decoded, Form 4 insider trades parsed into who bought/sold, how much, and whether scheduled). To keep watching, POST /watches with the same body.",
"pricing": {
"amount": "0.001",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "forms",
"type": "array",
"description": "",
"example": [],
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "ticker",
"type": "string",
"description": "",
"example": "NVDA",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "type",
"type": "string",
"description": "",
"example": "edgar",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "longwatch",
"tags": [
"monitoring",
"alerts",
"change-detection",
"website monitoring",
"page diff"
],
"quality": {
"l30DaysTotalCalls": "1",
"l30DaysUniquePayers": "1"
}
},
{
"url": "https://longwatch.dev/watches/:id/alerts",
"description": "Poll a watch for alerts since a cursor. Pass since={last seq you saw}; the response carries a new cursor. Polling keeps the watch alive.",
"pricing": {
"amount": "0.001",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [
{
"group": "query",
"name": "key",
"type": "string",
"description": "",
"example": "kq3\u2026",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "query",
"name": "since",
"type": "number",
"description": "",
"example": 0,
"enumValues": [],
"default": null,
"required": false
},
{
"group": "path",
"name": "id",
"type": "string",
"description": "",
"example": "309f9910-0a44-417d-b5d2-26df1a2c222f",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "longwatch",
"tags": [
"monitoring",
"alerts",
"change-detection",
"website monitoring",
"page diff"
],
"quality": null
}
],
"integrationType": "",
"isNew": false,
"priceSummary": {
"minAmount": "0.001",
"maxAmount": "0.001",
"avgCostPerTransaction": "0.001",
"avgCostBasis": "exact",
"currency": "USDC"
},
"serviceName": "longwatch",
"tags": [
"monitoring",
"alerts",
"change-detection",
"website monitoring",
"page diff"
],
"iconUrl": ""
}
}