Install Arc Control (macOS) for Claude Desktop
Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.
- Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
- Paste the JSON config below.
- Replace placeholder secrets, then restart the client if it does not reload on its own.
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"db-25-arc-control-mcp": {
"command": "npx",
"args": [
"-y",
"arc-control-mcp@0.4.0"
],
"env": {
"ARC_MCP_LABEL": "default",
"ARC_MCP_SPACE": "Agent",
"ARC_MCP_STATE_DIR": "",
"ARC_MCP_WINDOW": "dedicated",
"ARC_MCP_WINDOW_PLACEMENT": "auto",
"ARC_MCP_IDLE_MS": "1500",
"ARC_MCP_IDLE_WAIT_MS": "15000",
"ARC_MCP_ARC_DATA_DIR": "",
"ARC_MCP_ALLOW_HISTORY": "",
"ARC_MCP_CDP": "",
"ARC_MCP_CDP_PORT": "9222",
"ARC_MCP_ALLOWED_ORIGINS": "",
"ARC_MCP_BLOCKED_ORIGINS": "",
"ARC_MCP_BLOCK_READS": "",
"ARC_MCP_READ_ONLY": "",
"ARC_MCP_AUDIT_LOG": ""
}
}
}
}