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SYNTHORA Registry Watch
x402
SYNTHORA Registry Watch is a paid API for AI agents from registry-watch.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-10).
Delivers real-time service registry updates for machine-to-machine synchronization via a signed x402 micropayment call
Price / call$0.03
Success—
StatusUnknown
How this service works
Live x402 resource on Base. POST /service; payment required responses use x402.
Output
Returns a JSON object with an 'ok' boolean indicating success, a 'niche' field confirming 'registry_watch', a 'result' object containing the current registry state or delta updates, and a 'receipt' object confirming the x402 micropayment transaction.
Example use cases
Microservice fleet synchronization
“My microservice fleet needs to stay in sync with the central service registry — can you watch for any new registrations or removals and apply the updates automatically?”
Detect newly registered services
“Keep an eye on the service registry and alert me the moment a new service registers or an existing one goes offline.”
M2M registry polling loop
“Set up a loop that polls the SYNTHORA registry watch every minute and logs any changes to our service list so we always have the current state.”
Technical details
Endpoint
POSThttps://registry-watch.hergertsynthora.com/service?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time or near-real-time M2M service registry synchronization and are operating in a x402 micropayment-enabled environment on Base. It is best suited for automated agent pipelines or microservice orchestrators that need to stay continuously updated on registry state without maintaining a persistent WebSocket connection.
Side effects
- Invalid or missing x402 payment signature returns an authorization error
- Insufficient USDC balance causes payment failure and no registry data returned
- Registry temporarily unavailable returns a service error with ok: false
- Malformed POST body may return a 400-level parse error
- Stale or replayed payment nonce may be rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {"since": "<cursor|ISO>", "slug": " |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"required": [
"ok",
"niche"
],
"properties": {
"ok": {
"type": "boolean"
},
"error": {
"type": "string"
},
"niche": {
"type": "string"
},
"result": {
"type": "object",
"properties": {
"feed": {
"type": "array"
},
"as_of": {
"type": "string"
},
"count": {
"type": "number"
},
"cursor": {
"type": "string"
},
"source": {
"type": "string"
}
}
},
"receipt": {
"type": "object"
}
}
},
"example": {
"ok": true,
"niche": "registry_watch",
"result": {},
"receipt": {
"alg": "ed25519"
}
}
}Tags
x402
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