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Hermes Data API – Weather Endpoint
x402
Hermes Data API – Weather Endpoint is a paid API for AI agents from x402-api-blond.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns current weather conditions (temperature, wind speed, weather code) for a specified city, sourced from Open-Meteo, billed at $0.01 USDC per call via x402 protocol.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call data API: crypto prices (CoinGecko), China A-share quotes (Sina), weather (Open-Meteo), forex rates, and Ethereum gas fees. Payments via x402 protocol, USDC on Base.
Output
A JSON object containing a Unix timestamp, the city name, the data source ('open-meteo'), a WMO weather code indicating current sky/precipitation conditions, the current temperature in degrees Celsius, and the current wind speed in km/h.
Example use cases
City weather check for travel planning
“What's the current temperature and weather conditions in Shanghai right now? I need the wind speed too.”
Weather monitoring for logistics automation
“Fetch the current weather in Guangzhou for me — I need the weather code, temperature in Celsius, and wind speed so we can decide whether to dispatch today.”
Real-time weather for on-device AI agent
“Can you get me the live weather conditions for Beijing, including the temperature and wind speed?”
Technical details
Endpoint
POSThttps://x402-api-blond.vercel.app/weatherWhen to prefer
Choose this endpoint when you need lightweight, pay-per-call weather data without a subscription, especially if your agent stack already supports the x402 micropayment protocol on Base/USDC. It's ideal for infrequent or on-demand weather lookups where subscribing to a dedicated weather API would be overkill. Prefer it for AI agent pipelines that need weather as one of several data types (crypto prices, forex, A-shares) from a single unified endpoint.
Side effects
- Unknown or misspelled city name may return an error or empty result
- Missing x402 payment header or insufficient USDC balance causes a 402 Payment Required response
- Malformed MCP input schema in request body causes a 400 Bad Request
- Open-Meteo upstream outage may cause timeouts or 503 errors
- Rate limiting or payment processing delays on the x402 facilitator side
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ts": 1750000000000,
"city": "chengdu",
"source": "open-meteo",
"weather_code": 1,
"temperature_c": 25.4,
"wind_speed_kmh": 8.2
}
}Tags
x402
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