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 @launchdarkly/mcp-server.
~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.json~/.config/Claude/claude_desktop_config.json{
"mcpServers": {
"LaunchDarkly": {
"command": "npx",
"args": [
"-y",
"--package",
"@launchdarkly/mcp-server",
"--",
"mcp",
"start",
"--api-key",
"api-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
]
}
}
}