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x402 Bazaar Rank – API Tag Discovery
x402
x402 Bazaar Rank – API Tag 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 live x402 services tagged 'api', scored by real 30-day call volume and unique paying-wallet counts, with a 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: total matched service count, query parameters echoed back, the route used (/in-api), a list of up to 25 services each with name, network ID, 30-day call count, price in USD, resource URL, and 30-day unique payers, plus metadata fields for who declared the data, the snapshot generation timestamp, and the scoring revision hash.
Example use cases
Discover highest-traffic x402 APIs
“What are the top 25 x402 API services right now, sorted by how many unique wallets paid for them in the last 30 days? I want to see which ones are actually getting used.”
Vetting an x402 API before integration
“Before I integrate an x402 API into my agent, can you pull the ranked list of API-tagged services to see if the one I'm eyeing shows up in the top tier by call volume?”
Market research on x402 API ecosystem
“I'm doing research on the x402 micropayment API market — can you grab the current ranked snapshot of API services showing their 30-day calls, prices, and paying wallet counts?”
Technical details
Endpoint
GEThttps://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-api?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a ranked, usage-verified view of x402 API services specifically (tagged 'api'), backed by real on-chain payment data rather than self-reported metrics. Prefer it over generic x402 discovery endpoints when the ranking signal (payers or call volume) is important for your decision, or when you need a tamper-evident snapshot receipt for audit purposes.
Side effects
- Payment not included or insufficient USDC — 402 Payment Required response
- Upstream index unavailable — may return stale or empty result set
- Malformed query parameters — returns error or empty services array
- Snapshot hash mismatch — indicates index revision changed mid-request
- Rate limiting on the worker — slow or dropped responses under high load
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": "api"
}
},
"route": "/in-api",
"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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