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Early access — Connector UIs change often. Join the Product Brain Community.
Product Brain is useful when your AI tool can read and write Chain context during work. Choose the connection path based on the tool environment. Not sure about pb vs @productbrain/mcp? Read pb vs MCP package.

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Pick CLI when

  • The assistant can run shell commands.
  • The assistant is working inside a repository.
  • You want Product Brain, tests, git, and scripts in the same workflow.

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Pick MCP when

  • The assistant supports MCP tools.
  • The assistant cannot run a local terminal.
  • You want Product Brain available inside a chat or desktop AI client.

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Same workspace, different surface

CLI and MCP do not create separate knowledge stores. They authorize the same workspace and operate on the same Chain.