Cursor

Cursor supports MCP servers through its settings panel.

Steps

1. Open Cursor Settings (⌘, on macOS / Ctrl+, on Windows).

2. Navigate to Features → MCP Servers.

3. Click + Add new MCP server.

4. Fill in:

   • Name: aigeon
   • Type: stdio
   • Command: npx -y @aigeon/mcp-server
   • Environment variables: AIGEON_API_KEY = sk_your_key_here

5. Click Save. Cursor starts the server and shows a green status indicator when it's connected.

Usage

With the server running, open the Cursor chat panel (⌘L / Ctrl+L) and switch to Agent mode. You can now reference Aigeon operations alongside your code:

Write a Node.js script that reads emails from users.json and adds them to the "Launch waitlist" Aigeon list.

Cursor Agent will look up the correct add_group_members signature from the MCP manifest and generate code that matches exactly.

Troubleshooting

• Server shows red / disconnected — run npx -y @aigeon/mcp-server manually in your terminal to see the startup error. The most common cause is a missing or invalid AIGEON_API_KEY.
• Tools not appearing in chat — ensure you're in Agent mode (not Compose mode). Only Agent mode uses MCP tools.