Mem0 MCP Server vs Memory (Knowledge Graph)

A side-by-side comparison of two AI, Data & Knowledge servers — tools, transport, auth, maintenance, and copy-paste config for each.

	Mem0 MCP Server Archived official Mem0 server for long-term agent memory: add, search, update, and delete memories via the Mem0 API. Unverified stdio (local) API key Python	Memory (Knowledge Graph) Official MCP server providing persistent, file-backed knowledge-graph memory across sessions. Verified stdio (local) No auth TypeScript
Category	AI, Data & Knowledge	AI, Data & Knowledge
Language	Python	TypeScript
Transport	stdio (local)	stdio (local)
Auth	API key	None
GitHub stars	655	74k
Last commit	3 months ago	5 months ago
Verified
Actively maintained
Install	`pip install mem0-mcp-server`	`npx -y @modelcontextprotocol/server-memory`
Repo	Open	Open

Verdict

Pick Mem0 MCP Server if you prefer its approach (archived official mem0 server for long-term agent memory: add, search, update, and delete memories via the mem0 api).

Pick Memory (Knowledge Graph) if you prefer the more popular, battle-tested option, and you want zero-setup with no API key.

Add Mem0 MCP Server

Install / run

pip install mem0-mcp-server

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mem0-mcp-server": {
      "command": "uvx",
      "args": [
        "mem0-mcp-server"
      ],
      "env": {
        "MEM0_API_KEY": "<your-mem0-api-key>",
        "MEM0_DEFAULT_USER_ID": "<your-user-id>"
      }
    }
  }
}

Requires `uv` (the Python package runner). Install it from https://docs.astral.sh/uv/ if `uvx` is not found.

Add Memory (Knowledge Graph)

Install / run

npx -y @modelcontextprotocol/server-memory

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "memory-knowledge-graph": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-memory"
      ],
      "env": {
        "MEMORY_FILE_PATH": "/absolute/path/to/memory.jsonl"
      }
    }
  }
}

FAQ

Mem0 MCP Server or Memory (Knowledge Graph) — which is better?

Pick Mem0 MCP Server if you prefer its approach (archived official mem0 server for long-term agent memory: add, search, update, and delete memories via the mem0 api). Pick Memory (Knowledge Graph) if you prefer the more popular, battle-tested option, and you want zero-setup with no API key.

Can I use both Mem0 MCP Server and Memory (Knowledge Graph)?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do Mem0 MCP Server and Memory (Knowledge Graph) work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View Mem0 MCP Server →View Memory (Knowledge Graph) →More comparisons →