# x402 Bazaar Rank – In-Price Discovery

> x402 Bazaar Rank – In-Price 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 2026-10-22).

Returns a ranked list of x402 services filtered to price-tagged entries, scored by real 30-day call volume and unique paying wallets, with a snapshot hash receipt.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-price?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-in-price-discovery-67784106
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_S3QsK8MiVjmBkdJr--EEj

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-in-price-discovery-67784106
```

Example prompt: Show me the top 25 x402 services tagged as price, ranked by most unique paying wallets over the last 30 days, and include the snapshot receipt so I can verify the scoring revision.

## When to prefer this

Choose this endpoint when you need a ranked, usage-verified view of the x402 API marketplace filtered specifically to price-tagged services, backed by real 30-day on-chain payment data and unique payer counts rather than self-reported metadata. Prefer it over generic API directories when you need trustworthy activity signals (calls30d, payers30d) and a verifiable snapshot receipt for auditing or reproducibility.

## Known failure modes

- Invalid or missing tag parameter returns empty or unfiltered result set
- Network timeouts if the bazaar index is being rebuilt
- Stale snapshot if the 30-day window has not yet been refreshed
- Payment required (402) if the $0.008 USDC fee is not included in the request
- Malformed query parameters may return an error or zero results
- Index may not include very recently registered x402 services

## How this service works

Use when an agent needs the top x402 services tagged 'price'. Returns Highest-demand x402 services tagged 'price': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 88 providers and 235 paying wallets measured in this tag.

## Output

A JSON object containing a ranked array of x402 services matching the price tag, each entry showing service name, network (EIP-155 chain ID), 30-day call count, price in USD, resource URL, and unique paying wallets over 30 days. Also includes the total matched count, the query parameters used, the route, who declared it, and a generatedAt timestamp with a snapshot hash for auditability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "generatedAt",
  "route",
  "declaredBy",
  "query",
  "matched",
  "count",
  "services"
 ],
 "properties": {
  "count": {
   "type": "number"
  },
  "query": {
   "type": "object",
   "properties": {
    "by": {
     "type": "string"
    },
    "op": {
     "type": "string"
    },
    "limit": {
     "type": "number"
    },
    "where": {
     "type": "object",
     "properties": {
      "tag": {
       "type": "string"
      }
     }
    }
   }
  },
  "route": {
   "type": "string"
  },
  "matched": {
   "type": "number"
  },
  "services": {
   "type": "array",
   "items": {
    "type": "object",
    "properties": {
     "name": {
      "type": "string"
     },
     "network": {
      "type": "string"
     },
     "calls30d": {
      "type": "number"
     },
     "priceUsd": {
      "type": "number"
     },
     "resource": {
      "type": "string"
     },
     "payers30d": {
      "type": "number"
     }
    }
   }
  },
  "declaredBy": {
   "type": "string"
  },
  "generatedAt": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-bazaar-rank-in-price-discovery-67784106/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)