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x402 Data API – Seller Profile Lookup
x402
x402 Data API – Seller Profile Lookup is a paid API for AI agents from data.kagurazaka.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).
Returns full profile of one x402 seller origin: its listed APIs with prices and payer counts, total 30-day call volume, mean uptime, and payTo addresses.
Price / call$0.003
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 containing the seller's origin URL, total number of listed APIs, an array of API resources each with resource URL, price in USD, and 30-day payer count, plus aggregate 30-day call total and mean uptime percentage.
Example use cases
Vetting a seller before integration
“Before I integrate with https://api.venice.ai, can you pull their x402 seller profile and tell me how many APIs they list, what prices they charge, how many unique payers they've had in the last 30 days, and whether their uptime is solid?”
Monitoring competitor API pricing
“I want to keep an eye on what https://api.rivals.io charges for their x402 APIs — fetch their seller profile and show me all their endpoints with current prices and how popular each one is.”
Auditing payment addresses for a seller
“I need to verify the payTo addresses registered for the x402 seller at https://api.partner.xyz before we send any payments their way — can you look up their seller profile and list all their payment addresses?”
Technical details
Endpoint
GEThttps://data.kagurazaka.dev/v1/seller?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a comprehensive view of a single x402 seller — all their APIs, prices, payer activity, uptime, and payment addresses in one call. Prefer this over the market-wide or ranking endpoints when you already know the specific origin you want to inspect.
Side effects
- Unknown or unlisted origin returns empty results or 404
- Malformed origin URL (missing https://, trailing slash) causes query to fail
- Origin not yet indexed by x402scan returns no data
- Network timeout if upstream data aggregation is slow
- Rate limiting if the $0.003 USDC payment is not properly submitted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"apis": 14,
"origin": "https://api.example",
"results": [
{
"resource": "https://api.example/v1/x",
"price_usd": 0.005,
"payers_30d": 244
}
],
"calls_30d": 63008,
"mean_uptime_30d": 0.99
}
}Tags
x402
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