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Start a free trial on cloud.anythingmcp.com, add the OpenWeather in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.
Summary
Query OpenWeather (current weather, forecasts, air quality, geocoding) from any AI agent. 6 tools, API-key auth.
Try asking
Example prompts for OpenWeather
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → OpenWeather, paste your credentials, mint an MCP API key — done. No Docker, no
git clone, no local server.
OpenWeather + ChatGPT
Query OpenWeather (current weather, forecasts, air quality, geocoding) from any AI agent. 6 tools, API-key auth.
Prerequisites
See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:
OPENWEATHER_API_KEY
Step 1 — Get credentials
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=${OPENWEATHER_API_KEY} as a query string. The adapter injects it automatically — never include it in tool arguments.
…(continued in the in-app connector instructions)
Step 2 — Install the adapter
curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d
Step 3 — Add the connector in ChatGPT
Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (
https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide showsYOUR_SERVER_ID.
ChatGPT connects to MCP servers as custom apps in developer mode, available on paid plans (not on Free). On Business and Enterprise workspaces an admin may have to allow it first.
- In ChatGPT, open Settings → Security and login and turn on Developer mode.
- Go to chatgpt.com/plugins and click +.
- Enter a name and a short description, e.g. Name:
OpenWeather. - Under Connection, enter the MCP server URL
https://cloud.anythingmcp.com/mcp/YOUR_SERVER_IDand create the connection. - When ChatGPT asks, sign in to AnythingMCP (OAuth) and allow access.
Available tools
| Tool | What it does |
|---|---|
openweather_geocode_city | Translate a city name (optionally with state and country code) into latitude/longitude |
openweather_reverse_geocode | Translate latitude/longitude back into a list of nearby place names |
openweather_current_weather | Current weather at given coordinates: temperature, humidity, wind, conditions, sunrise/sunset |
openweather_forecast_5day | 5-day weather forecast at 3-hour intervals |
openweather_air_pollution | Current air-quality index (AQI 1-5) + concentrations of CO, NO, NO2, O3, SO2, PM2 |
openweather_air_pollution_forecast | Hourly air-pollution forecast for the next ~4 days at given coordinates |
FAQ
Does the free ChatGPT plan work with custom MCP connectors? No. Custom MCP connections need developer mode, which is only on paid plans.
Next steps
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