# Magnum.ai Open Weather API (Endpoint 13)

> Magnum.ai Open Weather API (Endpoint 13) is a paid API for AI agents from magnum-ai-flame.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Retrieves weather data via a pay-per-call endpoint on the Magnum.ai marketplace, powered by x402 micropayments on Base chain.

## Facts

- Endpoint: POST https://magnum-ai-flame.vercel.app/api/open-weather13
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/magnum-ai-open-weather-api-endpoint-13-6d03d377
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_x_9wJjTnCtPykkfLhC_AB

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 magnum-ai-open-weather-api-endpoint-13-6d03d377 -d '<json body>'
```

Example prompt: What's the current weather in London right now — temperature, conditions, and anything else you can get me?

## When to prefer this

Choose this endpoint when you need weather data and are operating in a pay-per-call, x402-compatible micropayment environment on Base chain, and want to avoid managing a separate OpenWeatherMap API key. Useful for agents that already have x402 payment infrastructure set up and want a single marketplace to access weather alongside other APIs.

## Known failure modes

- Payment not provided or insufficient USDC — returns 402 Payment Required
- Invalid or missing location parameter — returns error or empty result
- Upstream OpenWeatherMap API unavailable — returns 5xx error
- Malformed request body — returns 400 Bad Request
- Rate limit exceeded on underlying weather provider — returns 429

## How this service works

Pay-per-call API marketplace with 150 endpoints powered by x402 payments on Base chain.

## Output

Returns a result object containing weather data such as current temperature, weather conditions, humidity, and related meteorological information for the queried location, proxied through the Magnum.ai marketplace endpoint.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/magnum-ai-open-weather-api-endpoint-13-6d03d377/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from magnum-ai-flame.vercel.app](https://www.zero.xyz/host/magnum-ai-flame.vercel.app/llms.txt)