Brainlayer

BrainLayer

Your AI has amnesia. BrainLayer fixes that.

[](https://pypi.org/project/brainlayer/) [](https://github.com/EtanHey/brainlayer/actions/workflows/ci.yml) [](LICENSE) [](https://modelcontextprotocol.io) [](#testing) [](https://brainlayer.etanheyman.com)

Every architecture decision, every debugging session, every preference you've expressed — **gone between sessions.** You repeat yourself constantly. Your agents rediscover bugs they already fixed, and re-make choices the team already reasoned through.

BrainLayer gives any MCP-compatible AI agent persistent memory across conversations — and gives a whole **fleet** of agents a shared organizational memory: what one agent learns (a fix, a decision, what eroded and why) becomes experience the others inherit before they repeat the mistake. One SQLite file. No cloud. No Docker. Just `pip install`.

"What approach did I use for auth last month?"     →  brain_search
"Remember this decision for later"                 →  brain_store
"What was I working on yesterday?"                 →  brain_recall
"Ingest this meeting transcript"                   →  brain_digest
"What do we know about this person?"               →  brain_get_person

Quick Start

pip install brainlayer

Add to your MCP config (`~/.claude.json` for Claude Code):

{
  "mcpServers": {
    "brainlayer": {
      "command": "brainlayer-mcp-stdio-bridge"
    }
  }
}

That's it. Your agent now remembers everything. BrainBar must be running and owning `/tmp/brainbar.sock`; `brainl