Developer Tools & Devops · E2b + Claude
E2b MCP with Claude: Run Code Safely and Automate Multi-Language Workflows
The short answer
Claude works with E2b through the Model Context Protocol (MCP), a standard that lets Claude use outside software with permissions the organisation controls. Once connected, Claude can ask E2b to run code in isolated sandboxes, read the results and report back, so teams can automate multi-language tasks by describing them in plain English.
What is E2b?
E2b is an open-source platform for running code in secure, sandboxed environments. A sandbox is a separate, contained space where code can run without touching the wider systems around it. Developers building AI-powered apps use E2b to let their software execute code in several programming languages safely. Engineering, data and product teams are typical users, as are companies building AI agents and chatbots that need to test or run code on a user's behalf.
How Claude connects to E2b through MCP
The Model Context Protocol is an open standard that acts like a universal adapter between Claude and other software. It lets Claude securely use a tool by reading information and taking actions, with access the organisation sets. For E2b, the connection can run through the platform's MCP server or its direct API, depending on what suits the project.
Once connected, Claude can typically ask E2b to create or manage sandboxes, run scripts in supported languages, collect the output and errors, and help analyse what the code produced. A team member might simply describe the task in natural language and Claude carries out the steps inside the sandbox.
Permissions and approvals keep people in charge. Access is limited to the sandboxes and actions the organisation allows, usually under least-privilege rules. Consequential actions can require a person's sign-off before they run, and every action can be logged so the team can review what happened.
What you can automate
Testing customer-facing AI features
Product teams can ask Claude to run generated code in an E2b sandbox before it reaches users. This catches errors early, without risk to the live environment. Teams can review the output and decide whether a feature is ready to release.
Analysing data scripts on demand
Analysts often need a quick calculation or chart from a data file. Claude can write a short script, run it in a sandbox and return the results in plain English. This saves time for people who do not write code daily but still need reliable answers.
Checking code from external contributors
Engineering leads can have Claude run unfamiliar code in an isolated sandbox to see how it behaves. Because the code never runs on internal machines, the review is safer. Results are summarised so reviewers can decide quickly.
Automating multi-language reporting tasks
Some reports need steps written in different languages, such as Python for data cleaning and JavaScript for formatting. Claude can coordinate these steps across sandboxes and assemble the output. The workflow runs from a single request rather than several manual handovers.
Prototyping internal tools
Operations managers can describe a small tool they need, and Claude can build and test a working version in a sandbox. Developers then review and harden it before any wider use. This shortens the gap between an idea and a usable prototype.
An end-to-end workflow: Automated pricing analysis for the sales team
TriggerA sales manager posts a request in the team's ticketing system asking for updated margin figures for a product range.
Claude reads the request and the attached sales export from the ticketing system.
Claude asks E2b to create a sandbox and run a Python script that cleans the data and calculates margins.
The script output and any errors are returned to Claude, which checks the results for obvious problems.
Claude drafts a short summary and a chart, then places them in a shared Microsoft 365 folder.
A finance reviewer approves the summary before it is sent to the sales manager.
OutcomeTypical outcome: margin figures arrive in hours rather than days, with a reviewer confirming accuracy before anything is shared.
How we set it up
Free automation audit
We review how your teams use code, data and AI today and identify the workflows worth automating with E2b.
Connection design
We set up access to E2b using the API key sign-in method, with least-privilege permissions limited to the sandboxes you approve.
Workflow build
We design the end-to-end process across E2b and your other systems, such as Microsoft 365, your CRM, ERP or ticketing tool, with approval points for consequential actions.
Testing against real cases
We test the workflow against past examples from your business to confirm results are accurate and safe before anything goes live.
Launch and training
We launch with monitoring and audit logs enabled, then train your team on how to use Claude with E2b day to day.
Who benefits
- Engineering and DevOps leads
- Safer testing of AI-generated code, with isolated environments that protect internal systems.
- Product managers
- Faster checks on AI features before release, with clear results they can review.
- Data and operations analysts
- Script-based answers in plain English, without waiting on a developer for every request.
- IT and security heads
- Controlled access, approval steps and audit logs for code that runs outside core systems.
Security and control
- Code runs inside isolated sandboxes, separate from your live systems and data.
- Access uses an API key with least-privilege permissions limited to approved sandboxes and actions.
- People approve consequential actions before they run, such as anything that changes data or is shared externally.
- Every action is logged so your team can audit what was run, when and by whom.
- Secrets and credentials are kept out of prompts and handled through your own secure storage.
For teams in the US, UK, India and the Middle East
Organisations in the United States and the United Kingdom can host their Claude deployment in those regions to align with local data expectations. Indian organisations are supported in line with the Digital Personal Data Protection Act, 2023, with hosting in India where required. Organisations in the UAE and Saudi Arabia are supported under their national data protection laws, with hosting chosen to meet local requirements. We select the hosting region with you during the audit.
Learn more about Claude and MCP
Anthropic's AI model and assistant.
Secure links between Claude and business tools.
How engineers build and change software with Claude.
Hosted agents that run multi-step work.
The open standard Claude uses to connect to tools.
Frequently asked questions
What does the E2b MCP server do?
The E2b MCP server lets Claude and other AI tools connect to E2b in a standard, controlled way. Through it, Claude can typically request sandboxes, run code, and read the results. It offers an alternative to the direct API, and we help you choose the route that suits your project.
Is it secure to connect E2b to Claude?
Security depends on how the connection is set up. Code runs in isolated sandboxes, access is limited to approved actions, and sign-in uses an API key that we store securely. Approval steps and audit logs add further control. We design these safeguards with your IT and security team before launch.
What can Claude do with E2b once connected?
Typically, Claude can create and manage sandboxes, run scripts in supported languages, collect outputs and errors, and help interpret the results. Users describe tasks in natural language. The exact actions available depend on the permissions you grant during setup.
How long does setup take?
Timelines vary with the number of workflows and systems involved. A focused single-workflow connection can often be set up in a few weeks, including testing and team training. Larger projects spanning several systems take longer. The free automation audit gives you a realistic estimate.
Which E2b plan or permissions do I need?
You need an E2b account with an API key that grants access to the sandboxes you intend to use. The right plan depends on your usage and the features you require. We review your current setup during the audit and advise on any changes needed.