Connector guide2-minute read6 MCP tools7 languages

How to Connect OpenWeather to Gemini — via MCP

Query OpenWeather (current weather, forecasts, air quality, geocoding) from any AI agent. 6 tools, API-key auth.

HCBy HelpCode teamUpdated 2 min read Open-source on GitHub

No credit card · 7-day trial · Self-host alternative available

OpenWeather

OpenWeather

Query OpenWeather (current weather, forecasts, air quality, geocoding) from any AI agent. 6 tools, API-key auth.

tools

6

Region

INTL

Category

Public Data

Authentication

Query Param Auth

Required env vars

OPENWEATHER_API_KEY
Install in one click on Cloud

7-day free trial · No credit card

  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Open source · AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

Skip the install. Get this working in under 2 minutes.

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.

Start free trial

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.

OpenWeather · live via MCP
Share
Opus 4.7

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 + Gemini

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:

  1. Sign up at https://openweathermap.org/users/sign_up (free tier: 60 calls/min, 1M/month).
  2. Go to https://home.openweathermap.org/api_keys → copy the default key OR create a new one labelled e.g. mcp.
  3. Wait ~10 minutes — new keys take time to activate on the free tier.
  4. 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 Gemini

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 shows YOUR_SERVER_ID.

Gemini CLI reads MCP servers from ~/.gemini/settings.json (or %APPDATA%\gemini\settings.json on Windows). Add:

{
  "mcpServers": {
    "anythingmcp": {
      "httpUrl": "https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID",
      "headers": { "X-API-Key": "YOUR_MCP_API_KEY" }
    }
  }
}
  1. Get your MCP API key from AnythingMCP → MCP Servers → your server → API keys.
  2. Save the file and restart gemini.
  3. Run /mcp inside the Gemini CLI — OpenWeather should be listed as available.
  4. Vertex AI Studio: pass https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID to the tools array of your request with the same X-API-Key header.

Available tools

ToolWhat it does
openweather_geocode_cityTranslate a city name (optionally with state and country code) into latitude/longitude
openweather_reverse_geocodeTranslate latitude/longitude back into a list of nearby place names
openweather_current_weatherCurrent weather at given coordinates: temperature, humidity, wind, conditions, sunrise/sunset
openweather_forecast_5day5-day weather forecast at 3-hour intervals
openweather_air_pollutionCurrent air-quality index (AQI 1-5) + concentrations of CO, NO, NO2, O3, SO2, PM2
openweather_air_pollution_forecastHourly air-pollution forecast for the next ~4 days at given coordinates

FAQ

Does Gemini 1.5 Pro or 2.x support MCP? Yes — Gemini CLI ≥ 0.4 and Vertex AI tools API both accept MCP httpUrl connectors with custom headers.

Next steps

Was this guide helpful?

Your OpenWeather agent is one click away.

Install the connector, paste the key, prompt Gemini. Free for 7 days, no credit card.

Related guides