MemFlow MCP

Enables Large Language Models to store and retrieve persistent memories with intelligent search capabilities.

GitHub

memflow-mcp

A Model Context Protocol (MCP) server that enables Large Language Models to store and retrieve persistent memories with intelligent search capabilities.

Description

MemFlow MCP provides seamless integration between LLMs like Claude and your Memory Bank API, allowing for persistent memory management across conversations. The server supports adding memories with tags, semantic search, and flexible memory retrieval.

Installation

npx memflow-mcp

Or install globally:

pnpm add -g memflow-mcp

Configuration

Environment Variables

MEMBANK_API_URL=http://localhost:3000
MEMBANK_API_KEY=your-api-key  # optional

Claude Desktop

See CLAUDE_DESKTOP_CONFIG.md for detailed configuration options for different Node.js installations.

Quick start - Find your npx path and use it:

which npx

Then configure Claude Desktop:

{
  "mcpServers": {
    "memflow": {
      "command": "/your/npx/path",
      "args": ["-y", "memflow-mcp"],
      "env": {
        "MEMBANK_API_URL": "http://localhost:3000"
      }
    }
  }
}

Available Tools

  • addMemory - Store content with optional tags
  • searchMemory - Search memories with semantic matching
  • listMemories - Browse stored memories with filtering

Usage

Once configured, you can use these commands in Claude:

Add this to memory: "Claude can now remember things across conversations"

Search my memories for "conversations"

List my recent memories

Requirements

  • Node.js 18+
  • Memory Bank API server running

Troubleshooting

"spawn npx ENOENT" Error

  1. Find your npx path:

    which npx

    Use this full path in your Claude Desktop config.

  2. Common paths:

    • asdf: /Users/username/.asdf/shims/npx
    • Homebrew (Intel): /usr/local/bin/npx
    • Homebrew (Apple Silicon): /opt/homebrew/bin/npx
    • System: /usr/bin/npx

  3. Test it works:

    /your/npx/path -y memflow-mcp

"Unexpected token" JSON Errors

  • Ensure MEMBANK_API_URL is set correctly
  • Check that your Memory Bank API is running
  • Restart Claude Desktop after config changes

API Endpoints

Your Memory Bank API should support:

  • POST /memory - Create memory
  • GET /memory - List/search memories

License

MIT

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