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E2B

Cloud sandbox for AI agents to execute code

A secure runtime sandbox for agent workflows that need ephemeral compute.

Best for agent capabilities

Useful in agent tasks

Overview

Websitee2b.dev
Authapi key
PricingFree tier available · $0.10/session
SDKspython, typescript
OpenAPIYes
MCP SupportYes

When to use E2B

E2B is listed for Sandbox, Code Execution workflows. A secure runtime sandbox for agent workflows that need ephemeral compute. Consider it when an agent needs this capability through a documented service boundary instead of custom infrastructure maintained inside the application.

In 4agent's task model, the product maps to code execution. That makes it a candidate for workflows that build and deploy software.

Integration checklist

  • Access: confirm the api key authentication flow, credential scope, rotation process, and whether calls can be attributed to a user or service identity.
  • Client support: official or documented clients are listed for python, typescript.
  • Automation: OpenAPI is listed as available, MCP is listed as available, and CLI support is listed as available. Confirm each requirement in the provider's current documentation.
  • Operations: test rate limits, timeouts, retry safety, error payloads, logs, data retention, and the current free-tier and paid pricing model with production-like volume.

Sources and verification

Use these primary sources to verify current behavior before making an implementation or purchasing decision. Product capabilities, limits, and prices can change after a 4agent listing is reviewed.