# QuantaFlow Google Maps Reviews SERP API

> QuantaFlow Google Maps Reviews SERP API is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Fetches Google Maps reviews for a business or place via a pay-per-call x402 gateway, returning SERP-scraped review data.

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/serp-google-maps-reviews?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-google-maps-reviews-serp-api-23e1fd29
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VjW2wiYmF4bhQkexkTQV8

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-maps-reviews-serp-api-23e1fd29 -d '<json body>'
```

Example prompt: Pull the Google Maps reviews for 'The Smith Restaurant' in New York City so I can see what customers are saying about it.

## When to prefer this

Choose this endpoint when you need to retrieve Google Maps review data programmatically at low cost ($0.01 USDC per call) using the x402 micropayment protocol, especially in web3-native or DeFi agent workflows. Prefer it over full Google Maps API integrations when you only need review/SERP data without the overhead of OAuth or subscription billing.

## Known failure modes

- Business not found on Google Maps returns empty or error response
- Invalid query path or malformed query parameters causes upstream failure
- Payment failure via x402 protocol blocks request before upstream is called
- Rate limiting or blocking by upstream SERP provider returns error
- Ambiguous business name with multiple matches may return wrong location's reviews

## How this service works

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

## Output

Returns scraped Google Maps review data including reviewer names, star ratings, review text, dates, and aggregate rating information for the queried business or place, passed through from the upstream SERP provider after successful x402 payment.

## 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-maps-reviews-serp-api-23e1fd29/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)