# QuantaFlow SERP Google Maps Contributor Reviews

> QuantaFlow SERP Google Maps Contributor Reviews is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Fetches Google Maps contributor reviews for a place or location via a pay-per-call x402 gateway

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/serp-google-maps-contributor-reviews?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-serp-google-maps-contributor-reviews-4691a663
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ggury-yme8ItfZ7vxBJvZ

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-serp-google-maps-contributor-reviews-4691a663 -d '<json body>'
```

Example prompt: Pull the contributor reviews from Google Maps for 'Joe's Pizza in New York City' so I can see what customers are saying about it.

## When to prefer this

Use this endpoint when you need to retrieve real Google Maps contributor reviews programmatically with per-call micropayment billing (no subscription required). Prefer it over scraping directly when you need structured review data without managing Google API credentials, or when building Web3-native agents that pay per use via USDC on the x402 protocol.

## Known failure modes

- Place not found or ambiguous query returns empty results
- Payment failure or insufficient USDC balance causes 402 error
- Upstream SERP API rate limit or unavailability causes 503
- Malformed query body results in 400 bad request
- Place has no contributor reviews and returns empty array
- x402 payment settlement timeout causes delayed or failed response

## How this service works

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

## Output

Returns a structured list of Google Maps contributor reviews for the queried place, including reviewer names, star ratings, review text, and review dates, passed through from the upstream SERP API after successful x402 micropayment.

## 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-serp-google-maps-contributor-reviews-4691a663/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)