MCP Server

ChatGPT

Financial data in ChatGPT

ChatGPT supports MCP servers in developer mode. Connect Midday to query your transactions, invoices, and reports directly in ChatGPT conversations.

Requirements: ChatGPT Pro, Plus, Business, Enterprise, or Education account. Enable developer mode in Settings → Apps → Advanced settings.

Your API key

Don't have an API key? Create one in Settings → Developer

Create an MCP app in ChatGPT with this configuration:

{
  "mcpServers": {
    "midday": {
      "command": "npx",
      "args": [
        "mcp-remote@latest",
        "https://api.midday.ai/mcp",
        "--header",
        "Authorization:${AUTH_HEADER}"
      ],
      "env": {
        "AUTH_HEADER": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Uses mcp-remote to bridge bearer token authentication (installed automatically via npx).

Setup steps

1Get an API key from Settings → Developer
2Enable developer mode in Settings → Apps → Advanced settings
3Create a new MCP app with the config above