# x402 Bazaar Rank

> x402 Bazaar Rank is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-17).

Returns a ranked list of live x402 services scored by real 30-day call volume and paying-wallet activity, with a verifiable snapshot receipt.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/price
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-136049e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eubNbSdNwv2T0rBJ9m4LP

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-bazaar-rank-136049e8
```

Example prompt: Show me the top-ranked x402 services right now, scored by real 30-day call volume and paying wallets — I want to see what's actually getting used across the whole market.

## When to prefer this

Use this endpoint when you need to discover which x402 services are genuinely active based on real 30-day call volume and paying-wallet data, rather than relying on static directories or self-reported listings. It is particularly valuable when you need a verifiable, auditable snapshot with a hash receipt for compliance or due diligence purposes.

## Known failure modes

- No services indexed yet — returns empty ranked list
- Invalid or unsupported query parameter — may return unfiltered results or error
- Snapshot unavailable — stale or missing hash in receipt
- Payment not received — 402 response requiring USDC payment before result is returned
- Rate limiting or worker timeout on Cloudflare edge

## 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 ranked list of indexed x402 services with 30-day call scores and paying-wallet bounds, plus a receipt containing the snapshot hash and scoring revision, and a generatedAt ISO-8601 timestamp for auditability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "q": {
       "type": "string",
       "description": "capability to price against; omit for the whole market"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "mode": "relevance",
  "note": "zero-price services are counted separately: free is not cheap",
  "query": "weather",
  "method": "percentiles over services that declared a non-zero price",
  "benchmark": {
   "p10": 0.001,
   "p90": 0.1,
   "free": 6644,
   "median": 0.01,
   "charging": 9114
  },
  "byCategory": [
   {
    "p10": 0.001,
    "p90": 0.05,
    "tag": "weather",
    "median": 0.01,
    "charging": 12,
    "payers30d": 380
   }
  ],
  "generatedAt": "2026-09-17T12:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-bazaar-rank-136049e8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev](https://www.zero.xyz/host/x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/llms.txt)