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x402 Data API – API Price Statistics by Capability
x402
x402 Data API – API Price Statistics by Capability is a paid API for AI agents from data.kagurazaka.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-28).
Returns price statistics (min, quartiles, median, max) for x402 APIs matching a searched capability, plus the median among APIs with 3+ payers and the cheapest options with their uptime.
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 original query string, the number of matching APIs, price statistics (min, max, median, and implied quartiles in USD), a filtered median price among APIs with 3 or more payers, and an array of the cheapest matching APIs each with their resource URL, price in USD, and 30-day payer count.
Example use cases
Benchmarking image processing API costs
“What are the min, median, and max prices across x402 APIs offering image background removal, and which are the cheapest with decent uptime?”
Choosing a web scraping API by price
“I want to build something using a web scraping x402 API — can you find the going rate and show me the most affordable options that have real paying users?”
Market research on AI text generation APIs
“What does text generation cost across the x402 API market? Give me the price statistics and the cheapest APIs available with their uptime.”
Technical details
Endpoint
GEThttps://data.kagurazaka.dev/v1/market/prices?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to benchmark or compare pricing across multiple x402 APIs offering a similar capability, rather than inspecting a single API's details. It is ideal for agents doing market research, cost optimization, or helping users select the most affordable x402 API for a given task. Prefer it over the seller/origin endpoints when the goal is capability-level price discovery rather than per-seller analysis.
Side effects
- Query string too long (>200 chars) returns validation error
- No matching APIs found returns empty matches array and null price stats
- Service unavailable or upstream data stale returns 5xx error
- Payment not included or insufficient returns 402 Payment Required
- Query too vague returns a very wide price range with low-quality matches
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "web search",
"matches": 20,
"cheapest": [
{
"resource": "https://api.example/search",
"price_usd": 0.001,
"payers_30d": 12
}
],
"price_usd": {
"max": 0.05,
"min": 0.001,
"median": 0.005
}
}
}Tags
x402
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