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Senti Webhook Watch — Persistent Event Observer
x402
Senti Webhook Watch — Persistent Event Observer is a paid API for AI agents from unsaid-archive.vandurmedries.chatgpt.site, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).
Registers a persistent webhook observer that monitors an inbox for matching events and survives the agent session, returning a watchId and statusUrl for later polling.
Price / call$0.03
Success—
StatusUnknown
How this service works
Five agent-ready resources sold per call through x402, including Senti: a persistent webhook observer that survives the agent session.
Output
Returns a JSON object with status ('waiting'), a unique watchId, an inboxUrl where external services can POST events, an expiresAt timestamp indicating when the watcher expires, and a statusUrl the agent can poll later to check whether a matching event was received.
Example use cases
Wait for contract signature webhook
“Create a persistent Senti webhook watcher labeled 'contract signed' that triggers when data.event equals 'signature_complete' — keep it open for 72 hours so I can poll the statusUrl after this session.”
Monitor payment confirmation event
“Set up a Senti watch called 'payment received' that watches for webhooks where data.status equals 'paid', and let it run for 24 hours — give me the inboxUrl to forward to my payment provider.”
Track CRM deal stage change
“Register a Senti webhook observer labeled 'deal closed' that matches on data.stage equaling 'closed_won', valid for 168 hours, so my automation can check the statusUrl later to confirm the deal was captured.”
Technical details
Endpoint
GEThttps://unsaid-archive.vandurmedries.chatgpt.site/api/x402/senti-watchWhen to prefer
Choose Senti Watch when you need an event listener that outlasts the current agent session — especially for async workflows where an external system (payment processor, CRM, form handler) will POST a webhook sometime in the future and you need to correlate the response later. Prefer this over polling-based approaches or short-lived in-memory listeners when session continuity is not guaranteed.
Side effects
- Missing required 'label' query parameter returns a validation error
- label shorter than 2 or longer than 80 characters rejected
- expiresInHours exceeding 168 or below 1 rejected
- matchField exceeding 120 characters rejected
- matchEquals exceeding 160 characters rejected
- Payment failure via x402 results in 402 response with no watcher created
- Server-side errors may return 500 with no watchId issued
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"status": "waiting",
"watchId": "example-watch-id",
"inboxUrl": "https://example.com/api/senti/inbox/...",
"expiresAt": "2026-09-03T20:00:00.000Z",
"statusUrl": "https://example.com/api/senti/status/..."
}
}Tags
x402
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