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auto-browser-mcp

Stdio MCP bridge for Auto Browser — give your AI agent a real browser, with a human in the loop.

This is a metapackage: it installs auto-browser-client and exposes the auto-browser-mcp command so MCP clients can launch the bridge with a single uvx invocation.

Usage

With a local Auto Browser stack running (docker compose up in the repo):

{
  "mcpServers": {
    "auto-browser": {
      "command": "uvx",
      "args": ["auto-browser-mcp"],
      "env": {
        "AUTO_BROWSER_TOKEN_FILE": "/ABSOLUTE/PATH/TO/auto-browser/data/api-token"
      }
    }
  }
}

On first start the controller saves its API token to data/api-token in the auto-browser folder, and the bridge reads it from --token-file / AUTO_BROWSER_TOKEN_FILE on every request, so it can start before the controller. Pass --base-url / --bearer-token / --operator-id (or set AUTO_BROWSER_BASE_URL / AUTO_BROWSER_BEARER_TOKEN / AUTO_BROWSER_OPERATOR_ID) for non-default deployments; a bearer token wins over the file.

A bridge older than the one that added --token-file ignores AUTO_BROWSER_TOKEN_FILE, so every tool call fails with HTTP 401: use uvx auto-browser-mcp@latest, or set AUTO_BROWSER_BEARER_TOKEN to the file's contents.

See the Auto Browser repository for the full server, docs, and examples.

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