# x402 Bazaar Rank – /in-x Endpoint

> x402 Bazaar Rank – /in-x Endpoint 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 2026-10-15).

Returns the top x402 services tagged 'x', ranked by 30-day paying-wallet counts and call volume, with a snapshot receipt for auditability.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-x?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-in-x-endpoint-96a4393b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ze4s301U7C-beoEzJZgb3

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-x-endpoint-96a4393b
```

Example prompt: Show me the top 25 x402 services tagged 'x', ranked by the number of unique paying wallets over the last 30 days, and include the snapshot hash so I can verify the data freshness.

## When to prefer this

Use this endpoint when you specifically need ranked discovery of x402-protocol services tagged 'x', backed by real 30-day on-chain usage signals (paying wallets and call counts) rather than self-reported metadata. Prefer it over generic API directories when you need verifiable, payment-weighted rankings with an auditable snapshot receipt. It is purpose-built for the x402 ecosystem and gives ground-truth demand signals unavailable from static catalogues.

## Known failure modes

- No services indexed under the 'x' tag — returns empty services array with count 0
- Snapshot index temporarily stale — generatedAt timestamp may lag real-time by up to the indexing window
- Payment of $0.008 USDC not processed — request rejected with 402 before data is returned
- Malformed query parameters — may return 400 or unexpected empty results
- Worker cold-start latency on Cloudflare edge — occasional slow first response

## How this service works

An open index of the machine-to-machine (agent) economy. x402 routes: 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. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered.

## Output

A JSON object containing: the total count of matched services, the query parameters used (tag, operator, limit), the total number of matched services in the index, a ranked array of services each with name, network identifier, 30-day call count, price in USD, resource URL, and 30-day unique payer count, plus a 'declaredBy' field, snapshot hash, and generation timestamp for auditability.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 25,
  "query": {
   "by": "payers",
   "op": "top",
   "limit": 25,
   "where": {
    "tag": "x"
   }
  },
  "route": "/in-x",
  "matched": 359,
  "services": [
   {
    "name": "forecast api",
    "network": "eip155:8453",
    "calls30d": 310,
    "priceUsd": 0.01,
    "resource": "https://api.example.com/forecast",
    "payers30d": 42
   }
  ],
  "declaredBy": "agent",
  "generatedAt": "2026-09-17T12:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-bazaar-rank-in-x-endpoint-96a4393b/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)