@berwickgeek/mcp-memory-mongo

Memory MongoDB MCP Server

This MCP server provides Claude with memory capabilities through a knowledge graph stored in MongoDB. It uses a REST API for persistence, allowing the memory to be shared and persisted across sessions.

Features

• Create and manage entities with observations
• Create relationships between entities
• Search through entities and their observations
• Persistent storage through MongoDB
• Full CRUD operations for entities, relations, and observations

Configuration

The server requires the following environment variables:

• MEMORY_API_KEY: API key for authentication with the MongoDB API
• MEMORY_API_URL: URL of the MongoDB API server (defaults to http://localhost:3000 if not set)

You can set these environment variables in your system or use them when configuring the MCP server in your settings file.

Installation

npm install @modelcontextprotocol/server-memory-mongo

Usage in MCP Settings

Add the following to your MCP settings file (e.g., cline_mcp_settings.json or claude_desktop_config.json):

{
  "mcpServers": {
    "memory": {
      "command": "node",
      "args": ["/path/to/memory-mongo/dist/index.js"],
      "env": {
        "MEMORY_API_KEY": "your_api_key_here",
        "MEMORY_API_URL": "https://memory-api-production.up.railway.app"
      }
    }
  }
}

Available Tools

1. create_entities: Create new entities in the knowledge graph
2. create_relations: Create relationships between entities
3. add_observations: Add observations to existing entities
4. delete_entities: Remove entities and their relations
5. delete_observations: Remove specific observations from entities
6. delete_relations: Remove relationships between entities
7. read_graph: Retrieve the entire knowledge graph
8. search_nodes: Search for nodes based on a query
9. open_nodes: Retrieve specific nodes by their names

Development

# Install dependencies
npm install

# Build the server
npm run build

# Watch for changes during development
npm run watch

License

MIT