Cursor

Open ~/.cursor/mcp.json (Cursor Settings, then MCP, then add a server) and add Setherion. If the file already lists servers, add only the setherion entry.

{
  "mcpServers": {
    "setherion": {
      "url": "https://www.setherion.com/api/mcp"
    }
  }
}

Save the file. In Cursor Settings, under MCP, click the sign-in button next to setherion. A Setherion page opens: sign in if asked, then press Allow.