ChatGPT MCP and Apps: extensions you can try

Spline's cloud MCP lets ChatGPT and Codex generate editable 3D scenes and Hana canvas UIs in chat, then publish a shareable link; Cursor and Claude can connect too.

Spline's ChatGPT and Codex plugin opens a live 3D editor beside the conversation to create and edit interactive 3D scenes, and Claude can connect via MCP too.

Cinema 4D's official MCP lets AI tools like Claude and ChatGPT take instructions and automate everything from modeling to rendering, including tool creation.

The author connected ChatGPT voice mode to Blender through an MCP server so it can see the screen, then asked it step-by-step questions while modeling, likening it to a senior colleague sitting nearby.

The open-source blend-studio project lets users pick points on a 3D model and give editing instructions directly in the ChatGPT interface, with a one-minute demo video.

three.ws's 3D Studio connector gives ChatGPT 11 keyless 3D tools, and the same server is listed on the official MCP Registry so any MCP client can reach it.

The openai/mcp-extensions repository ships 3D-printable model files for Codex keycaps alongside the plugin code.

Cinema 4D adds official MCP support so ChatGPT or Claude can organize scenes and generate objects and materials from text prompts, with results editable and undoable by hand.