# QuantaFlow Google Shopping Light Search

> QuantaFlow Google Shopping Light Search 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).

Performs a lightweight Google Shopping search via a pay-per-call x402 gateway, returning product listings and pricing data.

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/serp-google-shopping-light?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-google-shopping-light-search-79f3f8d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nEmnF0LeVcCs2giF1Gbbz

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-google-shopping-light-search-79f3f8d0 -d '<json body>'
```

Example prompt: Search Google Shopping for 'Sony WH-1000XM5 headphones' and return the top product listings with prices and merchant names.

## When to prefer this

Use this endpoint when you need lightweight, pay-per-call Google Shopping search results without a full SerpApi subscription, especially in agent workflows that require infrequent or on-demand product lookups billed in USDC via the x402 micropayment protocol.

## Known failure modes

- Payment fails due to insufficient USDC balance — returns 402 Payment Required
- Invalid or missing query parameters — upstream returns empty or error response
- Path misconfigured — gateway cannot route to upstream SERP endpoint
- Rate limiting by upstream provider — returns 429 or error passthrough
- Network timeout — upstream SERP service unresponsive

## How this service works

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

## Output

Returns a passthrough of the upstream SERP provider's response containing Google Shopping results, including product names, prices, merchant names, product URLs, ratings, and other shopping listing metadata.

## 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-google-shopping-light-search-79f3f8d0/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)