Connect AI apps

Pro Max, Govt / Railways and Firm seats with the own-AI-key add-on: AI apps you already use – Claude Desktop, ChatGPT, Cursor, VS Code with GitHub Copilot, Codex, Gemini CLI, LM Studio and others that speak MCP – can work in CADSECTION: look up readings, areas, volumes and checks, change settings, layers, sections and templates, import level books, write reports and PDFs, and show a section. They use your own AI subscription; no CADSECTION AI credits are used.

Apps on this PC: click Add next to the app (it writes CADSECTION into that app's own settings; a copy of the file is kept), then start the app again and ask it, for example "Use CADSECTION: what are the cutting and filling volumes?". The app starts CADSECTION.exe in the background; it opens Studio when it is not running.

ChatGPT and Claude on the web only reach internet addresses. Turn on the internet link to get a private address and paste it into ChatGPT (Settings → Apps → Advanced settings → Developer mode → Create app, no authentication) or Claude (Settings → Connectors → Add custom connector). Keep the address private; New address stops the old one.

Every change an app makes is one step of Undo per app and burst (or ask the app to undo). While a window that edits the project is open in CADSECTION the apps wait. They never run account, licence or update commands. What they did is listed at the bottom of the window.