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Claude Web App (claude.ai)

An organization owner sets up the MCP connection as a custom connector. Once configured, team members can enable it individually from their integrations settings. Steps
  1. An organization owner navigates to the Integrations settings in Claude.
  2. Create a new custom connector using the MCP URL: https://api.fathom.ai/mcp
  3. Team members can then enable the Fathom connector from their own integrations page.
Reference: Get started with custom connectors using remote MCP — Claude Help

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Claude Desktop

Claude Desktop loads MCP servers from a JSON config file. You’ll open that file through Settings → Developer, then add a small snippet so Fathom’s remote MCP endpoint is available in the app. Steps
  1. Open Settings. From the system menu bar, open the Claude menu (not the in-app settings) and choose Settings… On Windows, use the equivalent menu entry for Claude Desktop settings.
  2. Developer → Edit Config. In the Settings window, open the Developer tab in the left sidebar, then click Edit Config. That opens (or creates) your MCP configuration file:
    • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
    • Windows: %APPDATA%\Claude\claude_desktop_config.json
  3. Add Fathom. Merge the following into your config (or add under mcpServers if you already use other servers):
{
  "mcpServers": {
    "fathom": {
      "command": "npx",
      "args": [
        "mcp-remote@latest",
        "https://developers.fathom.ai/mcp"
      ]
    }
  }
}
  1. Save the file and restart Claude Desktop completely so it reloads MCP.
This setup uses the mcp-remote bridge via npx, which requires Node.js on your machine.

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Claude Code

Claude Code supports adding MCP servers directly from the command line. No config file editing is needed. Steps Run the following command in your terminal: 
claude mcp add fathom -- npx mcp-remote@latest https://developers.fathom.ai/mcp
That’s it. The Fathom MCP server will now be available in your Claude Code sessions.