~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.json~/.config/Claude/claude_desktop_config.json{
"mcpServers": {
"perf": {
"command": "npx",
"args": [
"-y",
"perf-mcp"
],
"env": {
"PERF_API_KEY": "pk_live_xxx"
}
}
}
}