API & MCP
Connect Relm to Claude, ChatGPT, Gemini, GitHub Copilot and other AI assistants, and call the API from your own code.
Get connected
Which assistants can connect, how to create an API key, and what to do when a connection fails.
Connect Relm to your AI assistant
Which versions of Claude, ChatGPT, Gemini and GitHub Copilot can use Relm's tools, what you need first, and which guide to follow.
Create an API key
Create the key every AI assistant and API call uses to reach Relm, choose its access level, and revoke it when you are done.
Troubleshooting MCP connections
What each connection error from Claude, ChatGPT, Gemini, Copilot or Cursor means when connecting to Relm, and how to fix it.
Step-by-step guides
One walkthrough per assistant, for its desktop app, its browser version, and its command-line or IDE tools.
Connect Claude to Relm
Add Relm's tools to the Claude Desktop app, to claude.ai in your browser, and to Claude Code, with the exact settings for each.
Connect ChatGPT to Relm
Use Relm's tools on chatgpt.com by signing in with Relm, in the ChatGPT desktop app and Codex with an API key, and from the OpenAI API.
Connect Gemini to Relm
Use Relm's tools in Gemini CLI, Gemini Code Assist and Google Antigravity, in Gemini Enterprise and Gemini Spark by signing in, and from the Gemini API.
Connect Grok to Relm
Use Relm's tools on grok.com by signing in with Relm, in the Grok command-line tool with an API key, and from the xAI API.
Connect GitHub Copilot to Relm
Add Relm's tools to Copilot in VS Code and other IDEs, the Copilot CLI, the Copilot cloud agent on github.com, and Microsoft 365 Copilot through Copilot Studio.
Connect Cursor and other MCP clients
Settings for Cursor, Windsurf and any other MCP client that can send a custom header, plus how to check a client before you rely on it.
Still need help?
Our team usually responds within one business day. Tell us what you're trying to do and we'll get you unstuck.