# AgentBazaar Seller Lookup

> AgentBazaar Seller Lookup is a paid API for AI agents from agent-bazaar-five.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Retrieves active listings and profile data for a specific seller by username from eBay or shop name from Etsy via Apify actors

## Facts

- Endpoint: GET https://agent-bazaar-five.vercel.app/api/seller
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentbazaar-seller-lookup-d1db3d0f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AGUajpUJ2M_ulj0St6T0r

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 agentbazaar-seller-lookup-d1db3d0f
```

Example prompt: Can you look up the active listings for the eBay seller 'vintage_finds_2024' and show me how many items they have for sale right now?

## When to prefer this

Use this endpoint when you need to look up a specific seller by username or shop name on eBay or Etsy and retrieve their current active listings. Prefer this over a general product search when the agent knows the seller identity and wants seller-centric inventory data rather than keyword-based product discovery.

## Known failure modes

- Unknown seller username returns empty listings array or 404
- Marketplace parameter mismatch causes no results
- Apify actor timeout for sellers with very large inventories
- Invalid or unsupported marketplace value returns error
- Rate limiting or payment failure returns 402 status

## How this service works

Multi-marketplace product search for AI agents. Search eBay, AliExpress, Amazon, and Etsy via Apify actors.

## Output

Returns a seller object containing the seller/shop name, marketplace source, active listing count, and an array of listing objects (each with product details such as title, price, condition, and URL) from the specified marketplace.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "username"
 ],
 "properties": {
  "username": {
   "type": "string",
   "description": "Seller username (eBay) or shop name (Etsy)"
  },
  "marketplace": {
   "type": "string",
   "description": "Source marketplace"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "seller": {
   "type": "string"
  },
  "service": {
   "type": "string"
  },
  "endpoint": {
   "type": "string"
  },
  "listings": {
   "type": "array",
   "items": {
    "type": "object"
   }
  },
  "marketplace": {
   "type": "string"
  },
  "activeListings": {
   "type": "integer"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentbazaar-seller-lookup-d1db3d0f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-bazaar-five.vercel.app](https://www.zero.xyz/host/agent-bazaar-five.vercel.app/llms.txt)