OpenWeather
Query OpenWeather (current weather, forecasts, air quality, geocoding) from any AI agent. 6 tools, API-key auth.
7-day free trial · No credit card · EU-hosted
Ask OpenWeather anything
Try a real prompt against OpenWeather via AnythingMCP — Claude calls the tools, returns the answer. Press Enter on your own message to install on Cloud.
Install OpenWeather on CloudClaude is AI and can make mistakes. Please double-check responses.
Setup in 2 minutes
- 1Start a free trial on cloud.anythingmcp.com.
- 2Click OpenWeather in the connector store. Paste credentials when prompted.
- 3Mint an MCP API key and point your AI client at the generated MCP URL.
Guides for OpenWeather
Step-by-step setup for the most popular AI clients.
Setting up OpenWeather
From the connector definition itself: where to find the credentials, what they need to be allowed to do, and which API this adapter talks to.
This connector wraps the OpenWeather REST API (api.openweathermap.org).
Setup:
- Sign up at https://openweathermap.org/users/sign_up (free tier: 60 calls/min, 1M/month).
- Go to https://home.openweathermap.org/api_keys → copy the default key OR create a new one labelled e.g.
mcp. - Wait ~10 minutes — new keys take time to activate on the free tier.
- Set
OPENWEATHER_API_KEY.
Authentication: every request takes appid=${OPENWEATHER_API_KEY} as a query string. The adapter injects it automatically — never include it in tool arguments.
Coordinates first: most endpoints want lat/lon, not city names. Use openweather_geocode_city first to translate London,GB into coordinates, then call the weather endpoints with the coordinates. The Geocoding API is free and unlimited within the regular rate limit.
Units: pass units=metric (Celsius, m/s) or units=imperial (Fahrenheit, mph). Default (standard) returns Kelvin and m/s — usually NOT what you want.
Language: pass lang=it / de / en for localized weather descriptions. The numeric data is always identical, only the human-readable weather[0].description string changes.
Forecast endpoints: the free tier exposes the 5-day/3-hour forecast (/data/2.5/forecast). The newer One Call 3.0 API (hourly + daily + minutely) requires a paid subscription — gated separately in the tool descriptions.
Rate limits: 60 calls/min on free tier; tighter limits on burst. On 429, exponential backoff. Errors come back as {cod, message} with HTTP 401 for bad key, 404 for unknown city, 429 for rate-limit.
Out of scope here: historical data (paid), weather maps tiles (different host, image returns), severe weather alerts (paid).
Your AI is two clicks away from OpenWeather.
Install the connector, paste your credentials, ask your AI a question. 7-day free trial, no credit card.