Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Memory MCP Serverremember that I prefer using TypeScript for all my projects"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Memory MCP Server
A lightweight MCP (Model Context Protocol) server for persistent agent memory using SQLite and Bun.
Features
store_memory: Store key-value pairs with optional JSON metadata
retrieve_memory: Retrieve a memory by its key
list_memories: List all memories with optional limit
delete_memory: Delete a memory by its key
Prerequisites
Bun v1.3.9 or higher
Installation
bun installBuild
bun build src/index.ts --outdir=build --target=bunRun
bun run src/index.tsOr use the built version:
bun run build/index.jsConfiguration
Environment Variables
MEMORY_DB_PATH: Path to the SQLite database file (default:./memory.db)
MCP Settings Integration
To use this MCP server with Roo Code or Claude Desktop, add the following configuration to your MCP settings file:
Roo Code (Windows): %APPDATA%\roo-code\settings\mcp_settings.json
Claude Desktop (Windows): %APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"memory": {
"command": "bun",
"args": ["/path/to/local-mcp/build/index.js"],
"env": {
"MEMORY_DB_PATH": "/path/to/local-mcp/memory.db"
}
}
}
}Replace /path/to/local-mcp with the absolute path to this directory.
Usage Examples
Once configured, you can use the memory tools in your MCP client:
Store a memory
store_memory with key="user_preference", value="dark_mode", metadata='{"category":"ui"}'Retrieve a memory
retrieve_memory with key="user_preference"List all memories
list_memoriesList limited memories
list_memories with limit=10Delete a memory
delete_memory with key="user_preference"Project Structure
local-mcp/
├── src/
│ ├── db/
│ │ └── index.ts # Database initialization and types
│ ├── tools/
│ │ ├── store-memory/ # Store memory tool
│ │ ├── retrieve-memory/ # Retrieve memory tool
│ │ ├── list-memories/ # List memories tool
│ │ └── delete-memory/ # Delete memory tool
│ └── index.ts # Main server entry point
├── build/ # Compiled output
├── memory.db # SQLite database (created automatically)
├── .env.example # Environment variables template
├── package.json
├── tsconfig.json
└── README.mdDatabase Schema
CREATE TABLE memories (
key TEXT PRIMARY KEY,
value TEXT NOT NULL,
metadata TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);License
MIT
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