# x402 Bazaar Rank – Seller Endpoint

> x402 Bazaar Rank – Seller Endpoint is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.00625/call, status unknown (last checked 2026-10-02).

Returns ranked discovery data for a specific seller (or top sellers) on the x402 service market, including 30-day call volume, paying-wallet counts, and pricing metadata.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/seller?utm_source=zero.xyz
- Price: $0.00625/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-seller-endpoint-ec643cc6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JPHh1NkOmLwARzbyF3cQw

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-seller-endpoint-ec643cc6
```

Example prompt: Show me the top 10 x402 sellers ranked by paying wallets and call volume over the last 30 days, and include price range info.

## When to prefer this

Use this endpoint when you need ranked, real-usage-backed discovery of x402-protocol API sellers — especially when you want on-chain call volume and paying-wallet counts rather than self-declared metadata. Prefer it over generic API directories when the goal is to find high-traction x402 services or to audit a specific seller's market performance with a verifiable snapshot receipt.

## Known failure modes

- Invalid or unknown seller hostname returns empty or zero-match result
- Limit parameter out of range (1–96) returns validation error
- Stale snapshot data if the index has not refreshed recently
- Network timeout if the Cloudflare Worker is under load
- Payment failure ($0.05 USDC) blocks the request before any data is returned

## How this service works

Seller dossier by hostname (?host=api.example.com): that seller's x402 routes with 30-day calls and paying wallets, price ladder, networks and market share; without ?host — the top sellers by paying wallets.

## Output

A JSON object containing the seller's hostname, their ranked list of routes (with per-route 30-day call count, price, payers, and network), aggregate 30-day calls and payers, price min/max/ladder, calls-per-payer ratio, market share of payers, total matched resources, and a signed receipt with snapshot hash and scoring revision timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "host": {
       "type": "string",
       "description": "seller hostname, e.g. api.example.com; omit for the top sellers by paying wallets"
      },
      "limit": {
       "type": "integer",
       "default": 25,
       "maximum": 96,
       "minimum": 1
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "host": "api.example.com",
  "query": {
   "by": null,
   "op": "seller",
   "host": "api.example.com",
   "limit": 50,
   "where": {}
  },
  "route": "/seller",
  "routes": [
   {
    "name": "netflow",
    "tags": [
     "onchain",
     "smart-money"
    ],
    "network": "eip155:8453",
    "calls30d": 1200,
    "priceUsd": 0.05,
    "resource": "https://api.example.com/netflow",
    "payers30d": 40
   }
  ],
  "matched": 12,
  "calls30d": 4492,
  "networks": [
   "eip155:8453"
  ],
  "payers30d": 126,
  "resources": 12,
  "declaredBy": "agent",
  "generatedAt": "2026-09-17T12:00:00.000Z",
  "priceMaxUsd": 0.05,
  "priceMinUsd": 0.01,
  "callsPerPayer": 35.65,
  "priceLadderUsd": [
   0.01,
   0.02,
   0.05
  ],
  "marketShareOfPayers": 0.0016
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-bazaar-rank-seller-endpoint-ec643cc6/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)