# QuantaFlow SpaceX API Gateway (x402)

> QuantaFlow SpaceX API Gateway (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 2026-10-15).

Proxies requests to SpaceX-related upstream data endpoints via the x402 micropayment protocol, charging $0.01 USDC per call.

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/spacex?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-spacex-api-gateway-x402-a1fc39d2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nnZrd8djScJBNptttKPSb

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-spacex-api-gateway-x402-a1fc39d2 -d '<json body>'
```

Example prompt: Can you pull the latest SpaceX launch data, including the rocket name and launch date, from the QuantaFlow gateway using the /launches/latest path?

## When to prefer this

Use this endpoint when you need SpaceX mission, rocket, launch, or crew data and want to pay per-call via x402 USDC micropayments without a traditional API key subscription. Best suited for agents operating in web3/DeFi environments that already handle x402 payment flows natively.

## Known failure modes

- Payment failure: insufficient USDC balance or x402 payment not accepted, resulting in 402 Payment Required
- Invalid path: upstream SpaceX API path not found returns 404 pass-through
- Upstream unavailability: SpaceX API down or rate-limited causes gateway error
- Malformed query parameters: upstream rejects bad inputs with 4xx error
- Vercel cold-start latency on first request

## How this service works

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

## Output

The raw upstream SpaceX API response body is passed through as-is after successful x402 micropayment, including content-type headers. Data may include launch records, rocket specs, crew details, capsule info, or other SpaceX dataset fields depending on the path queried.

## 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-spacex-api-gateway-x402-a1fc39d2/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)