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x402 Bazaar Rank – AI-Agent Services Discovery
x402
x402 Bazaar Rank – AI-Agent Services Discovery is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-02).
Returns a ranked list of the top AI-agent-tagged x402 micropayment services, ordered by real 30-day call volume and paying-wallet counts, with a verifiable snapshot receipt.
Price / call$0.008
Success—
StatusUnknown
How this service works
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.
Output
A JSON payload containing a ranked array of x402 services (up to 25 by default for the /in-ai-agent route) each with name, network chain ID, 30-day call count, 30-day payer count, price in USD, and resource URL. Also includes query metadata (ranking criterion, limit, tag filter), total matched service count, a snapshot hash for verifiability, scoring revision, and a generatedAt timestamp.
Example use cases
Discover trending AI-agent APIs
“Which x402 APIs tagged for AI agents have gotten the most calls and unique payers in the past 30 days? Give me the top 25 ranked by paying wallets.”
Vet a service before integrating
“Before I integrate a new x402 weather API into my agent, can you check the bazaar rank to see how many calls and paying wallets it has logged over the last 30 days and what snapshot revision the data comes from?”
Build a leaderboard of x402 services
“Pull the current x402 Bazaar Rank for AI-agent-tagged services and give me the top services by call volume so I can display a live leaderboard of the most-used micropayment APIs.”
Technical details
Endpoint
GEThttps://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-ai-agent?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to discover which x402 micropayment services are actually being used in production, ranked by verifiable on-chain activity (calls and paying wallets) rather than self-reported claims. It is specifically scoped to the ai-agent tag, making it ideal for agents that want to find peer services other agents are actively paying for. Prefer it over generic API directories when you need trustless, usage-grounded rankings with a verifiable snapshot receipt.
Side effects
- No services indexed yet — returns empty array with count:0
- Network timeout on Cloudflare Worker — HTTP 504
- Invalid query parameters — HTTP 400 with error description
- Payment not attached or insufficient — HTTP 402 requiring USDC micropayment
- Snapshot data stale beyond refresh window — generatedAt timestamp will be outdated
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": "ai-agent"
}
},
"route": "/in-ai-agent",
"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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