# x402 Bazaar Rank – Fun Tag Deep Discovery

> x402 Bazaar Rank – Fun Tag Deep Discovery is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-19).

Returns a ranked list of live x402 services tagged 'fun', scored by real 30-day call volume and unique paying wallets, with a verifiable snapshot receipt.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-fun-deep?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-fun-tag-deep-discovery-2978cd89
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rR6j_7wmmxAqnaJMynAcc

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-fun-tag-deep-discovery-2978cd89
```

Example prompt: Show me the top fun-tagged services on the x402 bazaar ranked by number of paying wallets — I want to see real 30-day usage stats and what each one costs.

## When to prefer this

Choose this endpoint when you need ranked, usage-verified discovery of x402 services specifically in the 'fun' category, sorted by paying-wallet activity rather than self-declared popularity. It is ideal for agents evaluating market demand, selecting a reliable fun API to call, or auditing the x402 fun-service landscape with a verifiable audit trail (snapshot hash + scoring revision). Prefer it over generic x402 directory listings when real usage signal (calls30d, payers30d) and auditability matter.

## Known failure modes

- No services indexed for the fun tag returns an empty services array with count 0
- Snapshot hash unavailable if the indexer has not yet run a scoring revision
- Stale data if the 30-day window has not refreshed since last snapshot
- HTTP 402 if the $0.02 USDC payment is not attached to the request
- 503 if the Cloudflare Worker is temporarily unavailable

## 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 a ranked array of x402 services tagged 'fun', each with name, network, 30-day call count, 30-day unique payer count, price in USD, and resource URL. Also includes total matched count, the query parameters used, the route, a declarant field, and a verifiable snapshot hash with generation timestamp and scoring revision.

## 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": 100,
   "where": {
    "tag": "fun"
   }
  },
  "route": "/in-fun-deep",
  "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-fun-tag-deep-discovery-2978cd89/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)