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Add the LongMemory (formerly OpenMemory) MCP server to Windsurf

Config last verified Nov 10, 2026

The exact config to run LongMemory (formerly OpenMemory) in Windsurf — paste it in, restart, and the tools load.

Prerequisites

  • Windsurf installed.

Setup

1. Open ~/.codeium/windsurf/mcp_config.json

On Windows the file lives at %USERPROFILE%\.codeium\windsurf\mcp_config.json.

2. Add this configuration

Add to ~/.codeium/windsurf/mcp_config.json

~/.codeium/windsurf/mcp_config.json
json
{
  "mcpServers": {
    "openmemory": {
      "command": "npx",
      "args": [
        "-y",
        "longmemory",
        "mcp"
      ],
      "env": {
        "LM_DB_PATH": "<LM_DB_PATH>",
        "LM_TIER": "<LM_TIER>",
        "LM_EMBEDDINGS": "<LM_EMBEDDINGS>"
      }
    }
  }
}

3. Restart Windsurf and confirm the LongMemory (formerly OpenMemory) tools load.

Gotchas

Windsurf's Cascade reads MCP servers from an "mcpServers" object in ~/.codeium/windsurf/mcp_config.json. Unlike most clients, remote servers are configured with the "serverUrl" field rather than "url", so a config that uses "url" silently fails to connect. Native remote transport is supported without an OAuth flow.

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