How to connect Anchor browser to Claude Cowork

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Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Anchor browser account to Cowork via Composio Connect, enabling it to fetch full content of a product page, list all active browser sessions now, get details for a specific browser profile, and more such actions on your behalf without compromising your account security.

Also integrate Anchor browser with

Connecting Anchor browser to Claude Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your Anchor browser account

Back in Cowork, ask the agent to connect to Anchor browser or give it any Anchor browser-related task.

For example, ask Cowork to:

  • "Fetch full content of a product page"
  • "List all active browser sessions now"
  • "Get details for a specific browser profile"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Anchor browser account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Anchor browser through MCP without you sharing account credentials directly with the agent.

What is the Anchor browser MCP server, and what's possible with it?

The Anchor browser MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Anchor browser account. It provides structured and secure access to powerful web automation features, so your agent can fetch web content, manage browser sessions, control profiles, and interact with extensions on your behalf.

  • Automated webpage content retrieval: Instruct your agent to browse to any URL and fetch the fully rendered page content in HTML or markdown, enabling easy scraping or summarization.
  • Session and profile management: Let your agent create, list, or delete browser profiles, as well as start, end, or monitor multiple browsing sessions for different workflows or user contexts.
  • Browser extension control: Have the agent list all installed browser extensions, making it easy to audit and manage your browser environment programmatically.
  • Resource and file listing: Ask your agent to retrieve a list of files or resources uploaded during browser automation tasks, ensuring nothing gets lost in the shuffle.
  • Comprehensive session oversight: Quickly get an overview of all active browser sessions, their statuses, and terminate any or all sessions instantly for security or resource management needs.

Supported Tools & Triggers

Tools
Create ProfileTool to create a new browser profile from an active session.
Delete ProfileTool to delete a browser profile by id.
End All SessionsTool to end all active browser sessions.
End Browser SessionTool to end a specific browser session by id.
Get ProfileTool to fetch details for a specific browser profile by id.
Get Webpage ContentTool to retrieve rendered content of a webpage in html or markdown format.
List Agent ResourcesTool to list agent resources (files) for a given session.
List All Sessions StatusTool to list the status of all active browser sessions.
List ExtensionsTool to list all browser extensions for the authenticated user.
List ProfilesTool to fetch all stored browser profiles.
List Session RecordingsTool to list all recordings for a specific browser session.
List SessionsTool to list all browser sessions.
Screenshot WebpageTool to take a screenshot of a specified webpage within a session.
Signal EventTool to signal a specific event to be received by other processes or sessions.
Start Browser SessionTool to start a new browser session with optional customizations.
Update ProfileTool to update an existing browser profile by id.
Upload FileTool to upload a file to a browser session as an agent resource.
Wait for EventTool to wait for a specific event.

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FAQ

What are the differences in Tool Router MCP and Anchor browser MCP?

With a standalone Anchor browser MCP server, the agents and LLMs can only access a fixed set of Anchor browser tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Anchor browser and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Anchor browser tools.

Can I manage the permissions and scopes for Anchor browser while using Tool Router?

Yes, absolutely. You can configure which Anchor browser scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Anchor browser data and credentials are handled as safely as possible.

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