# QuantaFlow Google Finance SERP via x402

> QuantaFlow Google Finance SERP via 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 2026-10-14).

Fetches Google Finance search engine results page (SERP) data via a pay-per-call x402 micropayment gateway

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/serp-google-finance?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-google-finance-serp-via-x402-9c6b9b58
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__ATC4lVh7egVxsGtswG5q

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-finance-serp-via-x402-9c6b9b58 -d '<json body>'
```

Example prompt: Search Google Finance for Apple Inc. (AAPL) and give me the current price, market cap, and any top financial highlights showing up in the results.

## When to prefer this

Choose this endpoint when you need programmatic access to Google Finance SERP data and are operating in a web3/x402 micropayment environment. It is well-suited for AI agents that need on-demand financial data lookups billed per-call at $0.01 USDC without requiring traditional API key subscriptions. Prefer it over full financial data APIs when you only need Google Finance search-level results (prices, summaries, top results) rather than deep historical or real-time tick data.

## Known failure modes

- Payment failure: insufficient USDC balance or x402 protocol error results in 402 Payment Required response
- Invalid path or query: malformed path/query parameters return upstream error or empty results
- Rate limiting: upstream Google Finance SERP provider may throttle excessive requests
- Upstream unavailability: Google Finance or the proxy layer being down returns 5xx error
- Invalid JSON body: malformed body field causes request forwarding failure

## How this service works

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

## Output

The upstream Google Finance SERP response is passed through directly after successful x402 micropayment — typically JSON or structured data containing stock prices, company financials, market summaries, and related financial instrument listings as they appear in Google Finance search results.

## 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-finance-serp-via-x402-9c6b9b58/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)