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x402 Bazaar Rank – Crossref Discovery
x402
x402 Bazaar Rank – Crossref Discovery is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.032/call, status unknown (last checked 2026-10-23).
Returns a ranked list of x402 services tagged 'crossref', scored by real 30-day call volume and unique paying-wallet counts, with a verifiable snapshot receipt.
Price / call$0.032
Success—
StatusUnknown
How this service works
An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered.
Output
A JSON object containing a ranked array of crossref-tagged x402 services, each with name, network chain ID, 30-day call count, price in USD, resource URL, and unique payer count over 30 days. Also includes the query metadata (route, operator, limit), total matched count, who declared the data, and a generatedAt timestamp plus snapshot hash for auditability.
Example use cases
Discover high-traffic crossref APIs
“What crossref services on x402 have had the most paying wallets in the last 30 days? Give me the top 25 with their call counts and prices.”
Market research on crossref service demand
“I'm building a crossref integration — can you pull the x402 bazaar ranked list of crossref services so I can see which ones are getting real traction by actual paying users?”
Verify crossref service activity before integrating
“Before I commit to a crossref API on x402, can you show me which ones are actively used — ranked by 30-day calls and unique payers — along with the snapshot hash so I know the data is fresh?”
Technical details
Endpoint
GEThttps://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-crossref?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need ranked, real-usage-backed discovery of crossref services specifically within the x402 protocol ecosystem. Prefer it over generic API directories when you need verifiable 30-day activity metrics (calls and paying wallets) rather than self-reported or static listings, and when you need a cryptographically receipted snapshot hash for auditability.
Side effects
- No crossref-tagged services indexed returns empty services array with matched:0
- Snapshot stale if index hasn't refreshed — check generatedAt timestamp
- Worker cold start may add latency on first call
- Payment of $0.004 USDC required per call — missing or invalid payment returns 402
- Invalid query parameters may return empty or malformed results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 25,
"query": {
"by": "payers",
"op": "top",
"limit": 25,
"where": {
"tag": "crossref"
}
},
"route": "/in-crossref",
"matched": 359,
"services": [
{
"name": "forecast api",
"network": "eip155:8453",
"calls30d": 310,
"priceUsd": 0.01,
"resource": "https://api.example.com/forecast",
"payers30d": 42
}
],
"declaredBy": "agent",
"generatedAt": "2026-09-17T12:00:00.000Z"
}
}Tags
x402
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