
Platform	Desktop agent runner
Node.js	Required for sidecar

Steps

Press Ctrl U to open Agents.
Click AI Management (gear) ➜ MCP ➜ Configure Manually.
Paste:

{
  "mcpServers": {
    "customgpt-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "supergateway",
        "--sse",
        "https://mcp.customgpt.ai/projects/<PROJECT_ID>/sse",
        "--header",
        "Authorization: Bearer <TOKEN>"
      ]
    }
  }
}

Click Confirm; restart Trae.
Pick the server in the Agents list and chat.

Get the token from app.customgpt.ai -> Project -> Deploy -> MCP Server.