# Bazaar Demand - x402 Bestsellers Leaderboard

> Bazaar Demand - x402 Bestsellers Leaderboard is a paid API for AI agents from audit.152-53-82-29.sslip.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Returns the top-selling x402 bazaar API listings ranked by unique paying buyers in the last 30 days, with optional keyword and price filters.

## Facts

- Endpoint: POST https://audit.152-53-82-29.sslip.io/v1/bestsellers?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bazaar-demand-x402-bestsellers-leaderboard-7cc23820
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5bc6N0QrIIVjPkL6aX6gF

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 bazaar-demand-x402-bestsellers-leaderboard-7cc23820 -d '<json body>'
```

Example prompt: Show me the top 10 best-selling x402 bazaar services related to 'weather' that cost no more than $0.01, ranked by unique paying buyers over the last 30 days.

## When to prefer this

Use this endpoint when you need real demand signal — actual paying buyers — for x402 bazaar services, rather than just listing counts or crawl rankings. Ideal for market research before building a new x402 API, for competitive analysis within a category, or for discovering which services have proven monetization. Prefer this over generic API directory searches when you specifically want x402/micropayment-native services with validated buyer activity.

## Known failure modes

- Invalid limit value (outside 1-50 range) returns a validation error
- Keyword query with no matching listings returns an empty result set
- max_price_usd too restrictive filters out all results, returning empty list
- Data may be up to 6 hours stale since metrics refresh every 6 hours
- $0.01 USDC payment required per call; insufficient funds or payment failure blocks access

## How this service works

Top-selling x402 bazaar services by unique paying buyers in the last 30 days. Send {"limit":25}, optionally with {"query":"weather"} or {"max_price_usd":0.01}. Per listing: resource URL, host, price, networks, 30-day calls and unique payers, last call time, and description, plus a host leaderboard. Skips listings whose only payment is their own indexing call. From Coinbase discovery metrics, refreshed every 6 hours.

## Output

A ranked list of up to 50 x402 bazaar listings, each including the resource URL, host, price, supported networks, 30-day call count, 30-day unique payer count, last call timestamp, and service description. Also includes a host leaderboard summarizing which API providers are most active. Listings with only self-indexing calls are excluded to ensure genuine demand signals.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "maximum": 50,
   "minimum": 1,
   "description": "Listings to return, default 25"
  },
  "query": {
   "type": "string",
   "description": "Optional keyword filter; every word must match"
  },
  "max_price_usd": {
   "type": "number",
   "description": "Optional price ceiling in USD"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bazaar-demand-x402-bestsellers-leaderboard-7cc23820/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from audit.152-53-82-29.sslip.io](https://www.zero.xyz/host/audit.152-53-82-29.sslip.io/llms.txt)