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x402 Data API – Market Categories
x402
x402 Data API – Market Categories 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 API marketplace categories with listing counts, call volumes, median prices, and well-paid listing stats for each category.
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 array of category objects, each containing the category name (e.g. 'crypto & on-chain', 'LLM and AI'), total listings count, 30-day call count, median price in USD, and the count of listings with 5 or more distinct payers.
Example use cases
Explore x402 market by category
“Give me a full overview of all the x402 API categories — how many APIs are in each, what their call volumes look like over the last 30 days, and what the typical price is.”
Find most active API category
“Which category on the x402 marketplace has the highest number of calls in the last 30 days, and how many well-paid listings does it have?”
Research AI API market pricing
“I'm building an LLM-based product and want to price it competitively — what's the median price for APIs listed under the LLM and AI category on the x402 marketplace?”
Technical details
Endpoint
GEThttps://data.kagurazaka.dev/v1/market/categories?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a high-level categorical overview of the entire x402 API marketplace — e.g. to understand market structure, compare activity across domains, or identify which categories have the most listings and call volume. Prefer sibling endpoints for per-API rankings, price statistics for a specific capability, or seller/origin-level breakdowns.
Side effects
- Empty or missing results if the market data index has not been populated
- HTTP 402 if the $0.002 USDC payment is not included in the request
- HTTP 500 if the backend data aggregation service is unavailable
- Stale data if the index has not been refreshed recently
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"results": [
{
"category": "crypto & on-chain",
"listings": 12000,
"calls_30d": 500000,
"median_price_usd": 0.003,
"listings_with_5_or_more_payers": 900
}
]
}
}Tags
x402
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