How to integrate Openweather api MCP with Atomic Agent

Connect Atomic Agent to Openweather api MCP. Get current weather in paris right now, show 5-day forecast for san francisco, and more using natural language, with authentication handled for you.

Openweather api logoOpenweather api
Api Key

Openweather api provides global weather data, forecasts, and climate history. Instantly access accurate, location-based weather insights for any app or workflow.

21 Tools

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Openweather api.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Openweather api account. See the Atomic Agent documentation for installation instructions.

Also integrate Openweather api with

How Atomic Agent connects to Openweather api

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Openweather api to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in Openweather api. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Openweather api account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

What is the Openweather api MCP server, and what's possible with it?

The Openweather api MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Openweather api account. It provides structured and secure access to real-time, forecasted, and historical weather data, so your agent can fetch current conditions, deliver forecasts, analyze air quality, and perform location-based weather insights on your behalf.

  • Current weather retrieval: Instantly get up-to-the-minute weather details for any city or geographic coordinate, including temperature, humidity, and wind.
  • Five-day weather forecasting: Ask your agent for detailed 5-day forecasts in 3-hour intervals to plan events, travel, or outdoor activities.
  • Air pollution and UV index analysis: Retrieve current, forecasted, and historical air pollution data, as well as UV index values, to monitor environmental quality for any location.
  • Geocoding and reverse geocoding: Convert location names to coordinates or find city/state information from latitude and longitude, enabling location-aware weather queries.
  • Radius-based weather search: Fetch weather conditions for all cities within a specified radius around a geographic point for broader regional analysis.

Use Openweather api from Atomic Agent

With your account connected, ask Atomic Agent to work with Openweather api in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

TOOLS

Supported Tools

Every Openweather api action and event your agent gets out of the box.

Delete Weather Station

Tool to delete a registered weather station.

Get 5 Day Forecast

Tool to get a 5-day forecast every 3 hours (up to 40 UTC timestamps).

Get Current Air Pollution Data

Tool to fetch current air pollution data for a location.

Get Air Pollution Forecast

Tool to get forecasted air pollution data for a specific location.

Get Air Pollution History

Tool to retrieve historical air pollution data.

Get Circle City Weather

Tool to search for current weather data in cities around a geographic point.

Get Current Weather

Tool to retrieve current weather data for a location.

Get Geocoding by Zip Code

Tool to convert zip/post code into geographic coordinates.

Get Direct Geocoding

Tool to convert a location name into geographic coordinates.

Get Reverse Geocoding

Tool to convert geographic coordinates into a location name.

Get Station Measurements

Tool to retrieve aggregated measurements from a weather station with minute, hour, or day granularity.

Get Current UV Index

Tool to retrieve current UV index for a location.

Get UV Index Forecast

Tool to retrieve UV index forecast for a specific location.

Get UV Index History

Tool to retrieve historical UV index data for a specified location and time range.

Get Weather Map Tile (2.0)

Tool to fetch Weather Maps 2.

Get Weather Station

Tool to get information about a specific weather station by its ID.

Get Weather Stations

Tool to list all weather stations added to your account.

Get Weather Triggers

Tool to retrieve weather triggers for specific conditions.

Add Weather Station

Tool to add a new weather station to your account.

Submit Station Measurements

Tool to submit weather measurements from a registered station.

Update Weather Station

Tool to update weather station details.

FAQ

Frequently asked questions

With a standalone Openweather api MCP server, the agents and LLMs can only access a fixed set of Openweather api tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Openweather api and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Atomic Agent fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Openweather api tools.

Yes, absolutely. You can configure which Openweather api scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Openweather api data and credentials are handled as safely as possible.

Start with Openweather api.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Openweather api tool your agent needs.Free to start.

Start building