# 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, $0.001/call, status unknown (last checked 2026-09-19).

Returns a ranked list of live x402 micropayment 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/top
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-5ef386d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ELe_rwtQbLwpLdivZZxF4

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-5ef386d3
```

Example prompt: Show me the top 25 x402 services ranked by real 30-day usage and paying wallets, with the snapshot hash so I can verify the scoring revision.

## When to prefer this

Choose this endpoint when you need a live, objectively scored leaderboard of x402 services backed by real on-chain payment activity rather than self-reported or curated lists. It is the right choice when you want verifiable discovery with a snapshot receipt for auditing, or when you need to quickly identify the highest-traffic x402 APIs to prioritize integration or monitoring.

## Known failure modes

- Invalid n parameter (outside 1-100 range) returns validation error
- Snapshot indexing lag may mean very recently launched services are not yet ranked
- Service returns stale data if the underlying index has not refreshed
- Network or Cloudflare Worker timeout on high-load periods

## 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 object containing a ranked array of x402 services (up to 100 entries, default 25), each scored by 30-day call counts and paying-wallet bounds, plus a generatedAt ISO-8601 timestamp and a receipt identifying the snapshot hash and scoring revision used.

## 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": {
      "n": {
       "type": "integer",
       "default": 25,
       "maximum": 100,
       "minimum": 1
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 25,
  "method": "ranked by unique paying wallets in a 30-day window",
  "services": [
   {
    "name": "forecast api",
    "network": "eip155:8453",
    "calls30d": 310,
    "priceUsd": 0.01,
    "resource": "https://api.example.com/forecast",
    "payers30d": 42,
    "callsPerPayer": 7.4
   }
  ],
  "generatedAt": "2026-09-17T12:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-bazaar-rank-5ef386d3/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)