# x402 Bazaar Rank – Data Services

> x402 Bazaar Rank – Data Services 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 2026-10-21).

Returns a ranked list of the top x402 data-services by 30-day call volume and unique paying wallets, filtered to the 'data-services' tag.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-data-services?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-data-services-cdf4f16f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hevDJfLoQZIBbdGjOI4JK

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-data-services-cdf4f16f
```

Example prompt: Show me the top 25 data-service APIs on the x402 marketplace ranked by paying wallets over the last 30 days, so I can pick the most trusted one for my pipeline.

## When to prefer this

Choose this endpoint when you specifically need ranked discovery of x402 data-service APIs backed by real on-chain payment activity (30-day calls and unique paying wallets). It is preferable over generic API directories because rankings are grounded in actual micropayment receipts rather than self-reported metadata. Use it when you want auditable results (snapshot hash + scoring revision) and are operating within the x402/Base ecosystem.

## Known failure modes

- No services indexed under the data-services tag — returns empty list
- x402scan index unavailable — upstream timeout or 503
- Stale snapshot if the bazaar index has not refreshed recently
- Malformed response if the Cloudflare Worker encounters an unhandled exception
- Payment not settled — 402 response if USDC payment header is missing or insufficient

## How this service works

Use when an agent needs the top x402 services tagged 'data-services'. Returns Highest-demand x402 services tagged 'data-services': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 18 providers and 33 paying wallets measured in this tag.

## Output

A JSON object containing a ranked array of up to 25 (or configured limit) x402 data-services filtered by the 'data-services' tag. Each entry includes: service name, network (e.g. eip155:8453), 30-day call count, price in USD, resource URL, and 30-day unique paying wallets. The envelope also includes the total matched count, query parameters used, the route, a timestamp, and a snapshot hash plus scoring revision 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-data-services-cdf4f16f/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)