myBrain

myBrain MCP

myBrain is your personal knowledge base: everything you upload, link, record or write becomes a knowledge graph you can search, explore and reason over. This repository is the public home of the MCP server entry and of the files that teach an AI agent how to use your brain well.

Keep the trailing slash in the URL.

Clients that support OAuth (claude.ai, ChatGPT, Claude Code) need only the URL: they open the myBrain sign-in, you choose what to grant on the consent page, and the client receives its own token. Every other client uses an MCP API key, created in myBrain: Settings → Connected Apps → MCP Integrations.

Both carry scopes: mcp:read (search and read tools), mcp:write (add sources, approve, import memories), mcp:orchestrator (ask_mybrain). Signed-in apps and API keys are listed in the same Settings page, and revoking one there cuts its access immediately.

Connect

claude.ai (also used by the Claude desktop and mobile apps): Settings → Connectors → Add custom connector, paste https://mcp.mybrain.ai/mcp/ and sign in to myBrain.

ChatGPT (plans with Developer mode): Settings → Apps & Connectors → Advanced settings → turn on Developer mode, then Create a connector with the URL https://mcp.mybrain.ai/mcp/ and authentication OAuth, and sign in to myBrain.

Claude Code, signing in:

claude mcp add --transport http mybrain https://mcp.mybrain.ai/mcp/
claude mcp login mybrain   # or /mcp inside a session

or with an API key:

claude mcp add --transport http mybrain https://mcp.mybrain.ai/mcp/ --header "Authorization: Bearer YOUR_MCP_API_KEY"

Claude Desktop (config file), Cursor, VS Code (mcpServers in the client config):

{
  "mcpServers": {
    "mybrain": {
      "url": "https://mcp.mybrain.ai/mcp/",
      "headers": { "Authorization": "Bearer YOUR_MCP_API_KEY" }
    }
  }
}

Teach your agent to use it

Connecting the server is not enough. The agent also has to know when to search your brain instead of asking you, which tool is the cheap one, and that every write becomes a source pending your approval. Pick what fits your client:

All three assume the server is connected as mybrain (tool names mcp__mybrain__* in Claude Code).

Tools

Read (mcp:read): recall_memories, list_memories, search_user_knowledge, search_passages, read_source_passages, search_knowledge, search_sources, list_sources, explore_node, trace_path, get_knowledge_overview, list_knowledge_fields, get_knowledge_node, get_related_concepts, list_chat_threads, get_chat_history, get_suggested_questions, get_ingestion_status, get_usage_summary.

Write (mcp:write): add_source_text, add_source_url, add_source_youtube, approve_source, import_memories. Writes land as a source pending your approval in myBrain and are processed only after you approve.

Ask (mcp:orchestrator): ask_mybrain, a full answer synthesized over your brain with citations. It is rate limited and spends your plan quota.

Registry

server.json is the manifest published to the official MCP Registry as io.github.mybrain-ai/mcp.

Publishing (maintainers only) needs an Owner of the mybrain-ai org. The interactive mcp-publisher login github only grants the personal namespace (registry#1468); log in with a PAT instead (classic with read:org, or fine-grained with "Organization → Members → Read-only"), on mcp-publisher 1.8.1 or newer:

./mcp-publisher login github --token "$GH_PAT"
./mcp-publisher publish

A published version is immutable, so every change to server.json ships with a new version.

License

The files in this repository are released under the MIT License. See TRADEMARKS.md for the marks. The myBrain service and the server code behind mcp.mybrain.ai are not part of this repository.