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x402station.io What's New — Catalog Diff Polling
x402
x402station.io What's New — Catalog Diff Polling is a paid API for AI agents from x402station.io, paid per call via x402, $0.001000/call, status down (last checked 2026-09-15).
Returns a diff of newly added and removed x402 endpoints since a given timestamp, enabling agents to stay current with the x402 catalog
Price / call$0.001000
Success—
StatusDown
How this service works
Independent risk-signal layer for x402 agentic commerce — endpoint evidence (decoy / zombie / price-trap / never-paid) before an agent authorizes payment.
Output
An object containing added_endpoints[] and removed_endpoints[] arrays listing x402 endpoint URLs that changed since the requested timestamp, plus counts summarizing additions and removals, and CDP quality signals including settlement count and recency for newly discovered endpoints.
Example use cases
Monitor x402 endpoints for fraud patterns
“Check what x402 endpoints were added in the last week and flag any with low settlement counts or suspicious activity — I need to know which ones are risky before routing payments through them.”
Sync payment infrastructure after downtime
“Pull all x402 endpoint changes from the past 24 hours so I can update our local cache. Show me which endpoints disappeared and which new ones came online — I want to make sure we're not routing to dead services.”
Discover emerging x402 payment providers
“What new x402 endpoints have popped up since last Monday? Give me the ones with good recency signals so I can evaluate them as backup routing options for our payment flows.”
Technical details
Endpoint
POSThttps://x402station.io/api/v1/whats-newWhen to prefer
Use this endpoint when an agent needs to incrementally sync with the x402 endpoint catalog rather than fetching the entire catalog — ideal for periodic polling workflows, change-detection pipelines, or keeping a local routing table up to date without redundant full scans.
Side effects
- Invalid or future 'since' timestamp returns 400 or empty diff
- Limit exceeding maximum returns clamped or error response
- Network timeout if catalog is large and diff computation is slow
- Payment failure (USDC balance insufficient) returns 402 before processing
- Malformed request body returns 400 validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"limit": 200,
"since": "2026-04-27T00:00:00Z",
"until": "2026-04-28T00:00:00Z",
"summary": {
"polls_in_window": 288,
"added_services_count": 3,
"added_endpoints_count": 14,
"removed_services_count": 0,
"current_active_services": 549,
"removed_endpoints_count": 2,
"current_active_endpoints": 25950
},
"truncated": false,
"window_hours": 24,
"added_endpoints": [
{
"url": "https://api.example.com/v1/inference",
"currency": "USDC",
"provider": "example.com",
"price_usdc": "0.001",
"service_id": "example-service",
"service_name": "Example",
"first_seen_at": "2026-04-27T08:42:11Z"
}
],
"removed_endpoints": []
}
}Tags
x402
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