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Use cases

One brain in every AI tool

Save something in one AI tool and ask for it from another.

A chat history stays inside the tool that holds it. Connect those tools to one brain and each of them can search the same pages, read the same sources and add to them. You can capture a note from a terminal agent and ask about it later in ChatGPT.

See it in each tool

These example sessions come from livingbrain.com.

Claude calling living_brain_show_graph and showing the brain's 3D graph inside the chat

Open the graph inside the chat. living_brain_show_graph draws the brain’s pages and the connections between them. You can move around it without leaving the conversation.

Claude connects with your account, so there’s no API key to manage. See MCP with sign-in.

Connect your tools

ToolConnects throughSign in with
Claude, ChatGPTMCP with sign-inYour Living Brain account
Claude Code, Codex, CursorMCP with API keyAn API key and a subject ID
Gemini CLI, Hermes Agent and other terminal agentsLiving Brain CLIAn API key and a subject ID

Use the same brain and the same subject in each tool. A different subject means a different set of brains.

Prompts to try

Once a tool is connected, ask for the brain by name.

Save these notes to my Research brain.
What's the latest note in my Research brain?
What did we decide about the onboarding flow? Show me the page it came from.
Which pages connect to the onboarding flow page?
Show me the graph of my Research brain.

The last prompt opens the interactive view on hosts that support it. Other tools can return the same pages and connections as text.

What the tools can do

Sign-in hosts get these tools. The API-key server has one tool for each API operation.

You want toTool
See your brainsliving_brain_list_brains
Find pages by meaning or keywordliving_brain_search
Read a page with its sourcesliving_brain_read_page
Skim a brain’s pages, pinned ones firstliving_brain_get_index
See how pages relateliving_brain_list_connections
Open the 3D graphliving_brain_show_graph
Save a note, file, link or transcriptliving_brain_capture
Check whether a capture has compiledliving_brain_capture_status

Limits to plan for

  • New captures take a moment. A capture compiles in the background, so a search straight afterwards won’t find it. Use living_brain_capture_status to check.
  • Everyone with access reads the same pages. Access is per brain, so keep private material in its own brain.
  • Tools decide when to call the brain. Name the brain in your prompt, or add an instruction to the tool’s custom instructions or rules file.

Coding agent memory shows the same setup for a shared code project.