Requires Node 18+ on your system so npx can fetch the package on first run. Claude Desktop only speaks stdio locally; HTTP servers are wrapped via npx mcp-remote automatically. Paste the config below, then follow the reload step to register mongo-mcp.
~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.json~/.config/Claude/claude_desktop_config.json{
"mcpServers": {
"mongodb": {
"command": "npx",
"args": [
"mongo-mcp",
"mongodb://<username>:<password>@<host>:<port>/<database>?authSource=admin"
]
}
}
}