# QuantaFlow x402 API Gateway - Rapid Pro Social

> QuantaFlow x402 API Gateway - Rapid Pro Social 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).

Proxies requests to a rapid-pro-social upstream service through an x402 micropayment-gated API gateway for web3/DeFi tooling

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/rapid-pro-social?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-x402-api-gateway-rapid-pro-social-abb80063
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xcD47LoISuZtXUtcukAls

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-x402-api-gateway-rapid-pro-social-abb80063 -d '<json body>'
```

Example prompt: Use the QuantaFlow x402 gateway to forward a GET request to the rapid-pro-social path '/users/trending' and pay the $0.01 USDC per-call fee automatically.

## When to prefer this

Choose this endpoint when you need pay-per-call access to the rapid-pro-social upstream service with automatic x402 micropayment handling, particularly in web3/DeFi agent workflows where on-chain USDC billing is preferred over subscription-based API keys.

## Known failure modes

- Insufficient USDC balance causes payment failure and request rejection
- Invalid or malformed x402 payment header results in 402 Payment Required error
- Upstream rapid-pro-social service is unavailable or returns an error, which is passed through
- Invalid path or query parameters cause upstream 404 or 400 errors
- Network timeout from upstream service propagated back to caller

## How this service works

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

## Output

The raw upstream response body and content type from the rapid-pro-social service, passed through transparently after the x402 micropayment is successfully processed. No additional wrapping or transformation is applied.

## 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-x402-api-gateway-rapid-pro-social-abb80063/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)