Memory (Knowledge Graph) vs OMOP MCP Server

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

	Memory (Knowledge Graph) Official MCP server providing persistent, file-backed knowledge-graph memory across sessions. Verified stdio (local) No auth TypeScript	OMOP MCP Server Map clinical terminology to standardized OMOP CDM concepts using LLMs and the OMOPHub vocabulary API. Unverified stdio (local) API key Python
Category	AI, Data & Knowledge	AI, Data & Knowledge
Language	TypeScript	Python
Transport	stdio (local)	stdio (local)
Auth	None	API key
GitHub stars	74k	36
Last commit	7 months ago	3 months ago
Verified
Actively maintained
Install	`npx -y @modelcontextprotocol/server-memory`	`git clone https://github.com/OHNLP/omop_mcp.git`
Repo	Open	Open

Verdict

Pick Memory (Knowledge Graph) if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Pick OMOP MCP Server if you prefer its approach (map clinical terminology to standardized omop cdm concepts using llms and the omophub vocabulary api).

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"
      }
    }
  }
}

Add OMOP MCP Server

Install / run

git clone https://github.com/OHNLP/omop_mcp.git

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

{
  "mcpServers": {
    "omop-mcp-server": {
      "command": "uv",
      "args": [
        "--directory",
        "<path-to-local-repo>",
        "run",
        "omop_mcp"
      ]
    }
  }
}

FAQ

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

Pick Memory (Knowledge Graph) if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option. Pick OMOP MCP Server if you prefer its approach (map clinical terminology to standardized omop cdm concepts using llms and the omophub vocabulary api).

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

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

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

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