# QuantaFlow Bing Shopping SERP API (x402)

> QuantaFlow Bing Shopping SERP API (x402) is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Retrieves Bing Shopping search engine results pages (SERP) for product queries, billed per-call via the x402 micropayment protocol.

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/serp-bing-shopping?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-bing-shopping-serp-api-x402-011149a3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2X_bgxxyiqfQlhZcV8MJH

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 quantaflow-bing-shopping-serp-api-x402-011149a3 -d '<json body>'
```

Example prompt: Search Bing Shopping for 'Sony WH-1000XM5 headphones' and give me the top product listings with prices and merchants.

## When to prefer this

Choose this endpoint when you need Bing Shopping-specific product search results with micropayment-per-call billing, ideal for pay-as-you-go agents that don't need a subscription and want to compare prices or discover products across merchants. Prefer over Google Shopping SERP endpoints when Bing Shopping coverage or pricing differences matter to your use case.

## Known failure modes

- Payment failure: x402 payment not accepted or insufficient USDC balance returns a 402 error
- Invalid query: missing or malformed query string results in upstream API error
- Rate limiting: exceeding upstream Bing API limits may return 429 or error response
- Empty results: uncommon or misspelled product queries may return zero listings
- Upstream timeout: slow Bing response may cause gateway timeout

## How this service works

Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.

## Output

Returns a pass-through of the upstream Bing Shopping SERP API response, including product listings with names, prices, merchant details, product URLs, and other structured shopping result data as returned by Bing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "body": {
   "type": "string",
   "description": "Optional JSON body forwarded to POST requests."
  },
  "path": {
   "type": "string",
   "description": "Path below the selected upstream origin."
  },
  "query": {
   "type": "object"
  },
  "method": {
   "enum": [
    "GET",
    "POST"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "description": "The upstream response body and content type are passed through after successful payment."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quantaflow-bing-shopping-serp-api-x402-011149a3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quanta-roan.vercel.app](https://www.zero.xyz/host/quanta-roan.vercel.app/llms.txt)