How to connect E2b 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 E2b account to Cowork via Composio Connect, enabling it to run a Python script to analyze CSV data, execute JavaScript code to validate user input, start a sandbox and list installed packages, and more such actions on your behalf without compromising your account security.

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Connecting E2b 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 E2b account

Back in Cowork, ask the agent to connect to E2b or give it any E2b-related task.

For example, ask Cowork to:

  • "Run a Python script to analyze CSV data"
  • "Execute JavaScript code to validate user input"
  • "Start a sandbox and list installed packages"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your E2b 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 E2b through MCP without you sharing account credentials directly with the agent.

What is the E2b MCP server, and what's possible with it?

The E2b MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your E2b account. It provides structured and secure access so your agent can perform E2b operations on your behalf.

Supported Tools & Triggers

Tools
Connect to SandboxTool to connect to an existing E2B sandbox and retrieve its details.
Create TemplateTool to create a new E2B template with specified configuration.
Create WebhookTool to register a new webhook to receive sandbox lifecycle events for the team.
Delete SandboxTool to terminate and permanently delete a running E2B sandbox instance.
Delete WebhookTool to unregister a webhook and stop receiving lifecycle events.
Check API HealthTool to check the health status of the E2B API.
Get SandboxTool to retrieve detailed information about a specific sandbox by its ID.
Get Sandbox LogsTool to retrieve logs from a specific E2B sandbox instance.
Get Sandbox Lifecycle EventsTool to retrieve the latest lifecycle events for a particular sandbox instance.
Get Sandbox MetricsTool to retrieve timestamped CPU, memory, and disk usage metrics for a sandbox.
Get Team MetricsTool to retrieve timestamped CPU, memory, and disk usage metrics for a team.
Get Team Maximum MetricsTool to retrieve the maximum value for a specific team metric in a given interval.
Get Template Build StatusTool to get the status of a template build.
Get Template FilesTool to get an upload link for a tar file containing build layer files.
Get Webhook ConfigurationTool to retrieve the current webhook configuration for a specific webhook.
List All SandboxesTool to list all running and paused sandboxes associated with your team.
List Sandboxes MetricsTool to retrieve timestamped CPU, memory, and disk usage metrics for multiple sandboxes.
List Team Sandbox Lifecycle EventsTool to retrieve the latest lifecycle events across all sandboxes associated with the team.
List All TemplatesTool to list all available E2B templates for your team.
List All WebhooksTool to retrieve all registered webhooks for your team.
Pause SandboxTool to pause a running E2B sandbox preserving its filesystem and memory state.
Create SandboxTool to create a new E2B sandbox from a template.
Set Sandbox TimeoutTool to set the timeout for an E2B sandbox.
Refresh SandboxTool to refresh an E2B sandbox and extend its time to live.
Start Template BuildTool to start a build for an E2B template.
Update TemplateTool to update an E2B template configuration.
Update Webhook ConfigurationTool to update an existing webhook configuration including URL, enabled status, and subscribed events.

Available tools and triggers

After setup, the supported E2b tools and triggers listed on this page are available to Cowork through Composio Connect.

You can now ask Cowork to handle E2b workflows in natural language, from quick summaries and drafting tasks to more complex multi-step work across connected apps.

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FAQ

What are the differences in Tool Router MCP and E2b MCP?

With a standalone E2b MCP server, the agents and LLMs can only access a fixed set of E2b tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from E2b 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 E2b tools.

Can I manage the permissions and scopes for E2b while using Tool Router?

Yes, absolutely. You can configure which E2b 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 E2b data and credentials are handled as safely as possible.

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