# x402 Bazaar Rank – Bitcoin-Tagged Services

> x402 Bazaar Rank – Bitcoin-Tagged 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 2026-10-01).

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

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-bitcoin?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-bitcoin-tagged-services-85b12248
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MJ8gfTzAHt7s43F7ak2PF

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-bitcoin-tagged-services-85b12248
```

Example prompt: Show me the top bitcoin-tagged services on the x402 bazaar, ranked by how many calls and unique paying wallets they've had in the last 30 days, along with the snapshot hash for the results.

## When to prefer this

Use this endpoint when you specifically need to discover and rank x402-protocol services tagged with 'bitcoin', weighted by real market activity (calls and unique payers over 30 days). Prefer this over generic API directories when you need x402-native, payment-verified popularity signals and a cryptographic snapshot receipt for auditability.

## Known failure modes

- No services indexed under bitcoin tag returns empty array
- Snapshot index temporarily unavailable returns 503
- Stale data if index hasn't refreshed recently
- Payment of $0.008 USDC required per call; unpaid requests are rejected with 402
- Malformed response if upstream worker is redeploying

## How this service works

Highest-demand x402 services tagged 'bitcoin': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 86 providers and 249 paying wallets measured in this tag.

## Output

A JSON object containing a ranked array of x402 services tagged 'bitcoin', each with name, network, 30-day call count, price in USD, resource URL, and 30-day unique payer count; plus query metadata, total matched count, the snapshot hash, scoring revision, and a generatedAt timestamp.

## 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": "bitcoin"
   }
  },
  "route": "/in-bitcoin",
  "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-bitcoin-tagged-services-85b12248/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)