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x402stock x402 Service Discovery Index
x402
x402stock x402 Service Discovery Index is a paid API for AI agents from x402stock.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns an indexed catalog of public x402-compatible API endpoints discovered by x402stock for a given host, including pricing, categories, and service metadata
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call market and economic data API for AI agents: US stocks, ETFs and options, forex, crypto and on-chain perps, energy commodities, US and global macro (Fed, CPI, jobs, GDP, Treasury, World Bank), SEC filings, congressional trades, and market sentiment. No API keys, no accounts. Pay per request in USDC via x402 on Base.
Output
A JSON object containing an indexed list of x402-compatible endpoints for the queried host, including each endpoint's URL, HTTP method, price in USD, category, summary, network (e.g. Base), last updated timestamp, and aggregate service stats (min/max/median price, total paid resources, available categories, and the host's .well-known/x402 catalog URL).
Example use cases
Discover cheapest endpoint on host
“Can you find the cheapest x402 pay-per-call API available on x402stock.com and tell me what data it returns?”
Compare x402 API categories available
“What categories of market data can I access via x402 on x402stock.com — like macro, crypto, or SEC filings — and how are they priced?”
Explore unknown host x402 catalog
“I just heard about a site called x402stock.com that offers pay-per-request data APIs. Can you pull up their full x402 service catalog so I can see what endpoints they expose and what each one costs?”
Technical details
Endpoint
GEThttps://x402stock.xyz/api/v1/x402/service/%7Bhost%7DWhen to prefer
Use this endpoint when you need to programmatically discover what x402 pay-per-call APIs a specific host exposes, without prior knowledge of their endpoints. Prefer this over manually checking .well-known/x402 catalogs when you want aggregated pricing metadata, categories, and service health in a single call.
Side effects
- Host not found in x402stock crawl index — returns empty or error result
- Host does not expose a .well-known/x402 catalog — no endpoints returned
- Malformed host parameter — API may return 400 or empty response
- Host catalog outdated — last_updated may be stale if host recently changed
- Payment failure via x402 — USDC transaction on Base rejected or underfunded
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Index of public /.well-known/x402 discovery catalogs, crawled by x402stock. Prices are the cheapest advertised accept, normalized to USD (6-decimal USDC).",
"as_of": "2026-06-08T13:02:11.000Z",
"items": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"method": "POST",
"network": "eip155:8453",
"summary": "Search people by name, company, or role",
"category": "search",
"resource": "https://stableenrich.dev/api/person-search",
"price_usd": 0.05,
"last_updated": "2026-06-08T11:40:02.000Z"
}
],
"source": "x402stock",
"service": {
"ok": true,
"free": 0,
"host": "stableenrich.dev",
"paid": 18,
"error": null,
"networks": [
"eip155:8453"
],
"price_usd": {
"max": 0.25,
"min": 0.01,
"median": 0.05
},
"resources": 18,
"categories": [
"search",
"enrichment"
],
"catalog_url": "https://stableenrich.dev/.well-known/x402",
"description": "People/org search, web search, LinkedIn data, email enrichment",
"last_updated": "2026-06-08T11:40:02.000Z",
"x402_version": 2
},
"truncated": false
}
}Tags
x402
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