E2B

E2B

E2B is an open-source cloud infrastructure for AI agents, delivering secure, isolated sandboxed cloud virtual compute environments to run AI-generated code. It provides a reliable, scalable code execution layer for developers building AI applications and agent workflows.
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AI agent sandboxcloud-based code execution platformE2B open-source infrastructuresecure AI code executioncloud code interpreterAI agent development platformmultilingual code sandbox

Features of E2B

MicroVM-based sandbox with ultra-fast startup, starting in about 150 ms
SDKs for Python and JavaScript/TypeScript enable easy sandbox integration and control
Safely execute AI-generated or untrusted code inside isolated cloud virtual machines
Provides full environment capabilities such as filesystem operations, terminal command execution, and dependency installation
Supports custom sandbox templates with pre-configured languages, tools, and resources
Allows long-running sandbox sessions with state persistence and recovery
Integrates with leading LLMs and AI frameworks

Use Cases of E2B

Developers building AI data analytics apps can securely run data cleaning and visualization code inside the E2B sandbox
AI agent systems (e.g., multi-agent coordination platforms) rely on E2B’s virtual compute to run complex workflows
Enterprises augment products like chat assistants with code-explanation features by integrating the E2B SDK to execute code generated from user instructions
Researchers evaluating AI-generated code quality use the E2B environment for automated testing and benchmarking
Education platforms provide a safe online coding practice environment, running and validating student-submitted code via E2B
When rapid prototyping is needed, developers use the E2B sandbox as a temporary runtime for AI-generated applications

FAQ about E2B

QWhat is E2B and what problems does it solve?

E2B is an open-source AI agent cloud platform that focuses on secure, isolated cloud-based sandbox environments. It addresses the challenge of safely and reliably executing AI-generated or untrusted code within AI applications.

QHow fast does the E2B sandbox start up?

According to official materials, the E2B sandbox uses MicroVM technology to achieve startup times of around 150 ms, enabling real-time responsiveness for AI applications.

QWhich programming languages and development tools does E2B support?

The E2B sandbox typically comes with Python and Node.js runtimes and allows installing additional dependencies via the command line. Developers primarily integrate and control it through the provided Python and JavaScript/TypeScript SDKs.

QIs there a cost to using E2B? Is there a free tier?

E2B offers cloud-hosted services with a certain amount of free credits for new users to explore. For current pricing and quotas, please refer to the official pricing page.

QHow does E2B ensure the safety of code execution?

E2B uses hardware-isolated MicroVM technology, with each sandbox running in its own dedicated VM to prevent unauthorized access or impact on the host or other users.

QCan E2B be self-hosted? Is on-prem deployment supported?

Yes. E2B is an open-source project and supports self-hosted deployments. Enterprises can deploy E2B on their own infrastructure or with major cloud providers.

QWhat kind of developers or teams is E2B suited for?

E2B is ideal for developers building or integrating AI agents, who need code execution capabilities in their apps, including startups and enterprise R&D teams.

QHow do I get started with the E2B platform?

Typical steps include signing up for an account to obtain an API key, installing the Python or JavaScript SDK, and using the SDK to create and manage sandboxes for task execution. The official site provides detailed getting-started docs.

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