Use your brand in ChatGPT or a Claude project

Add brand.md to a project so every chat starts on-brand.

ChatGPT and Claude.ai can’t connect to Brandbook’s MCP server with a key yet. The simple way in is your brand.md: a readable summary of your whole brand.

  1. 1Go to Settings › API & connections and download brand.md.
  2. 2In ChatGPT or Claude.ai, open or create a project.
  3. 3Add brand.md to the project’s files.
  4. 4Ask for what you need. The model reads your rules first.
brand.md is a snapshot. When your brand changes, download it again. For a GPT, you can call the REST API from an action instead.