E2B
AI InfrastructureFreemiumVisit Site
Isolated sandboxes where an AI agent can run the code it just wrote without touching anything you care about.
Overview
The moment an agent writes and executes code, you have a security problem, and E2B is the standard answer to it. It gives each agent run a disposable, isolated cloud sandbox with its own CPU, RAM, and filesystem, started in a fraction of a second and destroyed afterwards. That is what makes data-analysis agents, code-interpreter features, and "run this script against the export" workflows safe to ship to customers. The pricing shape is the reason to pay attention: Hobby is free with $100 of one-time credits, up to one-hour sessions and 20 concurrent sandboxes; Pro is $150 a month and lifts you to 24-hour sessions and 100 concurrent, purchasable up to 1,100. Compute is billed per second on top, so an idle sandbox left running is the classic way to overspend. Buy E2B if you are building a product where users'' agents execute code. If you only need a browser, Browser Use or Browserbase is the cheaper primitive.
Pros & Cons
Pros
- Real isolation for agent-executed code — the correct security posture
- Sub-second sandbox start times
- Free tier with $100 credits is enough for a genuine evaluation
- Concurrency limits are published and purchasable
- Per-second billing means short runs are genuinely cheap
Cons
- The $150 Pro step is steep relative to the free tier
- Compute is billed on top of the plan fee — the plan price is not your bill
- Long-lived idle sandboxes are the standard way teams overspend
- Developer infrastructure — no value without engineering
- You still own the prompt-injection risk; isolation limits blast radius, it does not prevent bad instructions
Workflows that use E2B
Get a new AI workflow each week — many feature E2B and other tools in this category.