# AgentBazaar Seller Listings Lookup

> AgentBazaar Seller Listings Lookup is a paid API for AI agents from bazaaaaaar.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Fetches active product listings for a specific seller or shop by username from eBay or Etsy marketplaces

## Facts

- Endpoint: GET https://bazaaaaaar.vercel.app/api/seller
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentbazaar-seller-listings-lookup-f15f66e9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dt608f89GO8yZxmz-iefP

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-listings-lookup-f15f66e9
```

Example prompt: Can you pull up all the active listings for the eBay seller 'vintage_threads_co' and tell me how many items they currently have for sale?

## When to prefer this

Use this endpoint when you need to retrieve the active product inventory of a specific, known seller or shop by their username on eBay or Etsy. Prefer this over product search endpoints when you already know the seller identity and want their full storefront view rather than keyword-based product discovery. Ideal for monitoring a particular seller's catalog, comparing seller inventories, or building seller-centric shopping workflows.

## Known failure modes

- Seller username not found on the specified marketplace — returns empty listings array or error
- Marketplace parameter not matching supported values (eBay, Etsy) — may return error or default behavior
- Apify actor timeout or rate limit — request may fail with upstream error
- Payment not processed (x402 protocol) — request rejected before reaching seller data
- Missing required username parameter — returns 400-level error

## How this service works

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

## Output

Returns an object containing the seller's name, the marketplace queried, the service and endpoint identifiers, the total number of active listings as an integer, and an array of listing objects representing each active product the seller currently has available.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "username"
 ],
 "properties": {
  "username": {
   "type": "string",
   "description": "Seller username (eBay) or shop name (Etsy)"
  },
  "marketplace": {
   "enum": [
    "ebay",
    "etsy"
   ],
   "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-listings-lookup-f15f66e9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bazaaaaaar.vercel.app](https://www.zero.xyz/host/bazaaaaaar.vercel.app/llms.txt)