# eBay Average Selling Price Lookup

> eBay Average Selling Price Lookup is a paid API for AI agents from blackbobs-ai.vercel.app, paid per call via x402, $0.133972/call, status unknown (last checked 2026-09-15).

Returns the average selling price for a product on eBay based on recent completed listings

## Facts

- Endpoint: POST https://blackbobs-ai.vercel.app/api/ebay-average-selling-price
- Price: $0.133972/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ebay-average-selling-price-lookup-4677aba8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MM4fjejp2lIqA3ZrF0aMg

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 ebay-average-selling-price-lookup-4677aba8 -d '<json body>'
```

Example prompt: What's the average selling price for a used iPhone 14 Pro 256GB on eBay right now? I want to know what buyers are actually paying so I can price mine competitively.

## When to prefer this

Choose this endpoint when you need real-time eBay-specific average selling prices based on completed transactions. Prefer this over general product search APIs when you need actual transaction data rather than listed asking prices, and when the use case is resale pricing, arbitrage research, or competitive benchmarking on the eBay marketplace specifically.

## Known failure modes

- Product not found or no recent completed listings available
- Ambiguous or too-generic query returns unreliable averages
- Rate limiting or API quota exceeded
- Payment failure via x402 prevents request from being fulfilled
- Schema mismatch if query structure is not properly formed

## How this service works

194 production-ready API endpoints. AI, Search, Social, Finance, Crypto. Pay-per-call with x402 on Base chain.

## Output

Returns an object containing the average selling price and related market data for the queried product based on recent completed eBay listings, helping the agent determine fair market value.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ebay-average-selling-price-lookup-4677aba8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blackbobs-ai.vercel.app](https://www.zero.xyz/host/blackbobs-ai.vercel.app/llms.txt)