# QuantaFlow SERP Google Related Questions API

> QuantaFlow SERP Google Related Questions 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 2026-09-13).

Fetches Google SERP 'People Also Ask' related questions for a given search query via a pay-per-call x402 gateway.

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/serp-google-related-questions
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-serp-google-related-questions-api-fce3d306
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zII3qQyoQb-XYY_2rxBFo

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-related-questions-api-fce3d306 -d '<json body>'
```

Example prompt: Can you pull the Google 'People Also Ask' related questions for the search term 'intermittent fasting benefits' so I can build out an FAQ section?

## When to prefer this

Choose this endpoint when you need Google 'People Also Ask' related questions specifically, especially in an agentic or automated pipeline where pay-per-use microtransaction pricing ($0.01 USDC) is preferable to a subscription-based SERP API. Ideal for SEO research, FAQ generation, content gap analysis, and question-based keyword discovery at low volume without API key management overhead.

## Known failure modes

- Invalid or missing query parameter returns an error or empty result set
- Upstream SERP provider unavailable results in a gateway error
- Payment failure via x402 protocol blocks request before it reaches the upstream
- Malformed JSON body causes request rejection
- Rate limiting by the upstream SERP data provider returns a 429 or equivalent error

## How this service works

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

## Output

Returns the upstream SERP provider response containing a list of 'People Also Ask' related questions that Google surfaces for the submitted search query, including question text and potentially associated answer snippets or source URLs, passed through as-is from the upstream service.

## 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-related-questions-api-fce3d306/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)