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x402 Data API – Uptime Incidents (Recently Failed APIs)
x402
x402 Data API – Uptime Incidents (Recently Failed APIs) is a paid API for AI agents from data.kagurazaka.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Returns x402 APIs that were previously operational but failed the most recent uptime check, sorted by number of payers (most paid first).
Price / call$0.002
Success—
StatusUnknown
How this service works
Data about the x402 market: the CDP Bazaar's listings, sellers, prices and categories, new listings and price changes from snapshots every 6 hours, uptime we measure for every paid listing, and x402 spending of any wallet and revenue of any seller on Base.
Output
A JSON object with a total count of currently-failed x402 APIs and a results array containing each failed API's resource URL, the timestamp of its last successful check, the number of distinct payers in the last 30 days, and the timestamp of its most recent failure. Results are ordered by payer count descending (most-paid first).
Example use cases
Detect popular x402 API outages
“Which x402 APIs with the most payers have recently gone offline? Show me the top 20 that passed uptime checks before but are now failing.”
Alert on newly broken x402 services
“Pull the list of x402 APIs that just failed their latest uptime check so I can alert anyone who relies on them — give me up to 50 results.”
Audit x402 API reliability before integrating
“Before I build on top of any x402 API, can you check which ones have recently had failures? I want to avoid APIs that are currently down.”
Technical details
Endpoint
GEThttps://data.kagurazaka.dev/v1/uptime/incidents?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to identify x402 APIs that were previously healthy but have recently become unavailable, especially when you want to prioritize the most commercially active ones (by payer count). Prefer this over the general uptime ranking endpoint when you specifically want to surface incidents and failures rather than rank healthy APIs.
Side effects
- No results returned if no APIs have recently failed uptime checks
- limit parameter out of range (must be 1-50) may return an error or be clamped
- Stale data possible if the 6-hour uptime check cycle hasn't run recently
- Network timeout if the underlying data store is unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"total": 15,
"results": [
{
"resource": "https://api.example/v1/x",
"last_ok_at": "2026-10-24T12:00:00Z",
"payers_30d": 40,
"last_failed_at": "2026-10-24T18:00:00Z"
}
]
}
}Tags
x402
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