ChatGPT

Server URL

https://mcp.cardboard.ai/mcp

You need a Cardboard account. You can sign up at cardboard.ai.

From ChatGPT’s plugins

1. In ChatGPT, open Plugins and find Cardboard.
2. Choose Connect, sign in to your Cardboard account in the window that opens, and allow ChatGPT access.
3. In a chat, type @Cardboard, pick it, and ask for an edit.

As a custom MCP server

1. In ChatGPT, open Plugins, then Add, then Add custom MCP server.
2. Name it Cardboard, enter the server URL above, confirm you trust it, and choose Create.
3. Choose Connect, sign in to your Cardboard account, and allow ChatGPT access.

Note

Depending on your ChatGPT plan, adding a custom MCP server may need developer mode, or an admin to allow it for your workspace.

The first time Cardboard opens its upload card, ChatGPT asks whether to allow it. Choose Always allow to skip the question next time.

Tools only in ChatGPT

ChatGPT gets every tool in the tools reference, plus these, which make new media with a hosted model. Claude’s address leaves them out.

Generation

• Generate a video clipgenerate_videoChanges

  Makes a video clip from a description with a hosted model, and places it on the timeline. Uses credits.

• Generate an imagegenerate_imageChanges

  Makes a still image from a description with a hosted model, and places it on the timeline. Uses credits.

• Generation statusgeneration_statusChanges

  Waits for a video or image being made, and fills its place on the timeline.

• Generate a voiceovergenerate_voiceChanges

  Reads a script aloud in a chosen voice and places it on the timeline. Uses credits.

• Generate musicgenerate_musicChanges

  Makes an instrumental music track and places it on the timeline. Uses credits.

• Generate a sound effectgenerate_sfxChanges

  Makes a sound effect and places it on the timeline. Uses credits.

• List voiceslist_voicesReads

  Lists your account’s voices: favourites, recent ones and clones.

• Search voicessearch_voicesReads

  Searches the library of voices a voiceover can use.

When you ask for new media, your description, and any image you give as a reference, goes to the hosted model that makes it. The result is saved with your project like any upload.

Everything else

Sign-in and permissions, data handling and troubleshooting work the same as in Claude. To try it out, follow your first video.