E2B

Secure cloud sandboxes for AI agents to run code safely

4.5

Pricing

Freemium

About E2B

E2B provides Firecracker microVM sandboxes that AI agents use to execute arbitrary code safely in the cloud. Developers integrate E2B via SDK to give coding agents, data analysis bots, and autonomous workflows an isolated runtime. Used by AI agent frameworks as the standard execution layer for untrusted code.

Key Features

Firecracker microVM isolation
Python and JavaScript SDKs
Custom environment templates
Sub-second sandbox startup
Persistent filesystem support

Pros & Cons

Pros

+ Industry-standard agent sandbox infrastructure

+ Fast cold starts vs traditional VMs

+ Well-documented SDK with agent framework integrations

Cons

- Usage-based pricing scales with agent activity

- Requires cloud connectivity

- Not a end-user product — developer infrastructure

Use Cases

Safe code execution for AI coding agentsData analysis sandboxes for LLM workflowsAutonomous agent runtime environments