Connect Climatiq to Claude
Add the Climatiq MCP server to Claude, so it can calculate emissions with Climatiq’s data.
Summary
This guide shows you how to connect Claude to the Climatiq MCP server and check that it works. The steps work in Claude on the web and in the Claude desktop app.
The Intro to the Climatiq MCP server explains what it is, when to use it and what the free trial includes.
Using Claude Code? See MCP connections for developers.
Prerequisites
- A Climatiq account. Sign up if you don’t have one. New users get a free trial.
- One login to the Climatiq dashboard. Log in to app.climatiq.io at least once before you connect. This first login creates the link between your account and the MCP server.
- A Claude plan with custom connectors. Check Anthropic’s documentation for which plans include them.
Steps
Add a custom connector
In Claude, open Settings, go to Connectors and choose Add custom connector. On Team and Enterprise plans, an organization owner may need to add the connector first.
Enter the server details
Name the connector Climatiq and enter https://mcp.climatiq.io as the URL. The URL tells Claude where to find Climatiq’s tools. Select Add.
Sign in to Climatiq
Select Connect next to the new connector. Sign in with your Climatiq login when the login page opens.
Turn it on in a chat
In a new chat, open the tools menu and make sure Climatiq is turned on.
For details, see Anthropic’s guide to custom connectors .
How to confirm it worked
- Ask: “What are the emissions of 500 kWh of electricity in Germany?”
- The answer should state that it used Climatiq and give a CO2e value with the emission factor and source behind it.
Troubleshooting
I signed in, but every calculation fails
Log in to app.climatiq.io once, then try again. The first dashboard login is what links your account to the MCP server.
Claude says it has no Climatiq credentials
Go to Settings → Connectors, select Connect next to Climatiq and complete the login.
Where do my usage and saved product footprints go?
It depends on how you connected. If you signed in with your Climatiq login, they go to a project named ‘OAuth Project (Automatically created)’, which Climatiq creates the first time you sign in. If you connected with an API key, they go to the project that key belongs to.
For other issues, see Available tools and troubleshooting.