# QuantaFlow x402 API Gateway – Spoonacular Proxy

> QuantaFlow x402 API Gateway – Spoonacular Proxy 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).

Proxies requests to the Spoonacular food and recipe API via the x402 micropayment protocol, charging $0.01 USDC per call

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/spoonacular?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-x402-api-gateway-spoonacular-proxy-e27f7239
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MwqkijcXge7qzR-ZHOp-p

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-spoonacular-proxy-e27f7239 -d '<json body>'
```

Example prompt: Search Spoonacular for vegan pasta recipes with under 500 calories — use the QuantaFlow pay-per-call gateway and hit the /recipes/complexSearch path with the query 'vegan pasta' and maxCalories set to 500.

## When to prefer this

Use this endpoint when you need pay-per-call access to Spoonacular food and recipe data without managing a Spoonacular API key directly, and you are operating in a web3/x402 micropayment context where per-request USDC billing is preferred over subscription-based API access.

## Known failure modes

- Payment failure if wallet has insufficient USDC balance
- Invalid or unsupported Spoonacular path returns upstream 404
- Malformed query parameters cause upstream 400 error
- Spoonacular API rate limit or key exhaustion results in 429
- Network timeout on upstream Spoonacular service

## How this service works

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

## Output

The raw upstream Spoonacular API response body (JSON), including recipe lists, nutritional data, ingredient details, or other food data depending on the path queried, passed through after successful x402 USDC 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-x402-api-gateway-spoonacular-proxy-e27f7239/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)