How to integrate E2b MCP with ChatGPT

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How to integrate E2b MCP with ChatGPT

ChatGPT is one of the most popular AI tools today, with capabilities ranging from deep research and image generation to writing, coding, and everyday productivity.

In this guide, I will explain the easiest and most secure way to connect your E2b account to ChatGPT via Composio Connect, so it can summarize unread updates from this morning, create draft replies to urgent messages, fetch contact details for recent senders, and more without ever putting your account credentials at risk.

Also integrate E2b with

Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's E2b integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,000+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account with Plus subscription or higher (Business, Enterprise, Edu, or Pro). We will use ChatGPT Web.
  • Access to the E2b workspace you want to connect.
  • Composio MCP.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect E2b to ChatGPT

1. Enable Developer Mode

In ChatGPT, go to Settings > Apps > Advanced settings and turn on Developer Mode.

ChatGPT settings showing Developer Mode toggle

2. Add the MCP server

Click Create app, then paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT create app flow with Composio MCP URL

3. Authorize in your browser

A browser window will open automatically. Sign in to authorize ChatGPT to access your Composio account.

Composio authorization screen for ChatGPT MCP setup

4. Start using Composio

Composio tools are now available in ChatGPT chats and Deep Research. In every new chat, click the + icon at the bottom, click More, and select Composio to enable tools for that conversation.

What you can do after connecting E2b

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

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.

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.

How to build E2b MCP Agent with another framework

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 ChatGPT?

Yes, you can. ChatGPT 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.

Used by agents from

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Letta
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Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.