MCP Servers

mempalace-mcp

An HTTP MCP gateway that wraps the mempalace Python CLI, enabling per-user memory palaces for storing and retrieving personal data.

README

mempalace-mcp

An HTTP Model Context Protocol (MCP) gateway that wraps the mempalace Python CLI, providing per-user memory palaces over a stateful HTTP API.

What it does

Exposes an MCP endpoint at POST /mcp/:userId
On first request for a user, spins up a dedicated mempalace subprocess (a Python MCP server) and keeps it alive in memory
Proxies all MCP tools/list and tools/call requests to that user's subprocess, isolating each user's data under /data/<userId>/.mempalace
Strips extra parameters injected by MCP clients (e.g. n8n's chatMessage) before forwarding tool calls

Endpoints

Method	Path	Description
`POST`	`/mcp/:userId`	MCP endpoint (initialize or resume session)
`GET`	`/mcp/:userId`	MCP SSE stream for active session
`DELETE`	`/mcp/:userId`	Close an MCP session
`GET`	`/users/:userId/wake-up`	Pre-warm a user's palace and return its status
`POST`	`/users/:userId/mine`	Mine a chat transcript into the palace, then clean up the temp file
`GET`	`/health`	Server health + active palace/session counts

Running

Docker Compose (recommended)

Create a docker-compose.yml:

version: "3.9"

services:
  mempalace-mcp:
    image: ghcr.io/thehaseebahmed/mempalace-mcp:latest
    container_name: mempalace-mcp
    user: "1000:1000"
    ports:
      - "3000:3000"
    volumes:
      - ./palace-data:/data
    environment:
      - BASE_DIR=/data
      - TRANSFORMERS_CACHE=/data/.cache/transformers
      - HF_HOME=/data/.cache/huggingface
    restart: unless-stopped

Then run:

docker compose up -d

Data is persisted to a palace-data/ folder next to your docker-compose.yml (mapped to /data in the container).

Local dev

npm run dev

Configuration

Env var	Default	Description
`MCP_PORT`	`3000`	Port to listen on
`BASE_DIR`	`/data`	Root directory for all user palace data
`PYTHON_BIN`	`/opt/mempalace-venv/bin/python`	Python binary with `mempalace` installed

Requirements

Node.js >= 20
Python 3.11 + mempalace pip package (handled automatically in Docker)

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