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Connect ChatGPT, Codex, Cursor or VS Code to Revit

Model MCP provides local stdio registration for Codex, Cursor, and VS Code with GitHub Copilot. ChatGPT cloud chat cannot start this local stdio server; the documented OpenAI route is local Codex registration. The add-in runs on Windows with Revit 2022-2027, while a remote MCP client can use SSH.

Install a local client

  1. Close Revit and select the target client.
  2. Follow MSI download and verification. The release MSI includes the server executable and requires no Python or SDK installation.
  3. Start Revit, choose Always Load, and open a model.
  4. Use Model MCP > Model MCP > Connect AI app to register Codex, Cursor, or VS Code, then restart the selected client.
  5. Follow connection verification and request revit_ping before asking for model work.

The same installation supports registration in several clients through Connect AI app. The one-command installer arrives with the next release.

ChatGPT and remote access

Codex uses the local .codex/config.toml registration described in installation. A ChatGPT conversation alone does not create that registration or reach the Windows add-in. Model MCP does not provide a hosted ChatGPT connector. Its direct HTTP API uses bearer authentication and is distinct from a hosted MCP connector.

For Codex or another MCP client on macOS, keep Revit on Windows and configure the SSH transport. Configuration support does not imply a recorded live test for every client. Consult the tested clients matrix before deployment.

Further reading