# x402 Bazaar Rank – Crypto Deep Discovery

> x402 Bazaar Rank – Crypto Deep Discovery is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.016/call, status unknown (last checked 2026-10-23).

Returns a ranked list of x402 services tagged 'crypto', scored by real 30-day call volume and paying-wallet activity, with a verifiable snapshot receipt.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-crypto-deep?utm_source=zero.xyz
- Price: $0.016/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-crypto-deep-discovery-e0cb6be2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OEk22--Gc4AJ3dqkl7gE0

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-crypto-deep-discovery-e0cb6be2
```

Example prompt: Show me the top x402 services tagged crypto, ranked by real 30-day payer activity — I want to see which ones are actually getting paid usage right now.

## When to prefer this

Use this endpoint when you need an objective, usage-backed ranking of x402 services specifically in the crypto domain — not just a static directory listing. It is the right choice when you want to surface services with proven real-world adoption (actual paying wallets, actual call volume) rather than self-reported metadata. Prefer it over generic API directories when operating within the x402 payment ecosystem and needing to identify high-signal, actively monetized crypto services.

## Known failure modes

- No services indexed under the crypto tag — returns count:0 and empty services array
- Snapshot data may be stale if the indexer has not refreshed within 30 days
- Payment of $0.02 USDC required; missing or invalid x402 payment header causes 402 response
- Service unavailable on Cloudflare Workers edge — returns 5xx with no body
- Malformed response if scoring revision has changed and schema is mismatched

## How this service works

Deep view: top 100 x402 services tagged 'crypto': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 860 providers and 2031 paying wallets measured in this tag.

## Output

A JSON object containing a ranked array of x402 services filtered to the 'crypto' tag, each entry showing service name, network (e.g. eip155:8453), 30-day call count, 30-day unique payer count, USD price, and resource URL. The response also includes the total matched count, the query parameters used, the route, who declared the data, 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": "json",
 "example": {
  "count": 25,
  "query": {
   "by": "payers",
   "op": "top",
   "limit": 100,
   "where": {
    "tag": "crypto"
   }
  },
  "route": "/in-crypto-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-crypto-deep-discovery-e0cb6be2/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)