MCP Server

Arc Control (macOS) MCP Server

io.github.DB-25/arc-control-mcp

Repository Registry

What is the Arc Control (macOS) MCP server?

macOS-only MCP server for the Arc browser: tabs, navigation, page reading, DOM, scripting

How to install Arc Control (macOS)

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

ARC_MCP_LABEL
Names this agent's tab ownership. Two agents with different labels never see each other's owned tabs. Defaults to "default".
ARC_MCP_SPACE
The Arc space new tabs open into, when a space with that name exists. Arc will not let a script create a space, so make it by hand. Defaults to "Agent".
ARC_MCP_STATE_DIR
Directory where per-session tab ownership is recorded, so a restarted agent can clean up the tabs its previous run left behind. Defaults to ~/Library/Application Support/arc-control-mcp.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "arc-control-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "arc-control-mcp"
      ],
      "env": {
        "ARC_MCP_LABEL": "<YOUR_ARC_MCP_LABEL>",
        "ARC_MCP_SPACE": "<YOUR_ARC_MCP_SPACE>",
        "ARC_MCP_STATE_DIR": "<YOUR_ARC_MCP_STATE_DIR>"
      }
    }
  }
}