# x402 Bazaar Rank – Verification Services

> x402 Bazaar Rank – Verification 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 2026-10-23).

Returns a ranked list of x402 services tagged 'verification', scored by real 30-day call volume and unique paying-wallet counts, with a snapshot hash receipt.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-verification?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-verification-services-c9bf741d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IjtRzfQPsiUDHYlvexvEh

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-verification-services-c9bf741d
```

Example prompt: Show me the top 25 verification services on the x402 Bazaar ranked by number of unique paying wallets over the last 30 days, so I can pick the most battle-tested one.

## When to prefer this

Choose this endpoint when you need ranked, usage-validated discovery of x402 verification services specifically — it provides ground-truth 30-day call and payer data rather than static listings. Prefer it over generic API directories when you need to identify which verification services have real adoption on the x402 network, or when you want a snapshot-hashed, auditable record of the market state for a specific service category.

## Known failure modes

- No services indexed under 'verification' tag — returns empty services array with matched:0
- Snapshot index temporarily stale — generatedAt timestamp may lag real-time by minutes
- Invalid or missing query parameters may return a 400 or default to preset ranking parameters
- Payment not confirmed — 402 response if $0.004 USDC payment receipt is missing or invalid
- Worker cold-start latency on Cloudflare edge — occasional slow first response

## How this service works

Use when an agent needs the top x402 services tagged 'verification'. Returns Highest-demand x402 services tagged 'verification': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 181 providers and 258 paying wallets measured in this tag.

## Output

A JSON object containing: the total matched service count, the query parameters echoed back, a ranked array of verification services (each with name, network chain ID, 30-day call volume, price in USD, resource URL, and 30-day unique payer count), the declaring agent, snapshot generation timestamp, and route identifier — giving the agent a verifiable, time-stamped view of live x402 verification service usage.

## 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-verification-services-c9bf741d/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)