# QuantaFlow NewsAPI Gateway (x402)

> QuantaFlow NewsAPI 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 2026-10-21).

Proxies requests to the NewsAPI service via the x402 micropayment protocol, returning news articles and headlines on a pay-per-call basis.

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/newsapi?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-newsapi-gateway-x402-37be0e9a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Sc3HjEc8JmOzGKMtZ-lWy

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-newsapi-gateway-x402-37be0e9a -d '<json body>'
```

Example prompt: Can you search NewsAPI for the latest headlines about Bitcoin regulation and return the top 5 articles from the past week?

## When to prefer this

Choose this endpoint when you need pay-per-call access to NewsAPI without managing a separate NewsAPI subscription or API key, and you are already operating within an x402 micropayment-enabled agent stack. Ideal for low-frequency or bursty news lookups where a recurring subscription would be wasteful.

## Known failure modes

- Payment failure: insufficient USDC balance or x402 payment not accepted returns a 402 Payment Required error
- Invalid path: malformed path parameter results in upstream 404 or error passthrough
- Rate limiting: NewsAPI upstream rate limits may trigger 429 errors
- Invalid query parameters: malformed query object may cause upstream API errors
- Upstream unavailability: NewsAPI downtime results in proxy error

## How this service works

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

## Output

Returns the raw upstream NewsAPI response passed through after successful x402 micropayment — typically a JSON payload containing an array of articles with fields like title, description, url, publishedAt, source name, and author.

## 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-newsapi-gateway-x402-37be0e9a/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)