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E2B

Open-source infrastructure for running AI-generated code in secure, isolated cloud sandboxes, with Python and JavaScript SDKs, a Code Interpreter package, and self-hosting options.

by E2B · submitted by JPette1783·added 2026-06-05·
HarnessCLI
Review first review before installing

Open the source and read safety notes before installing.

Citation facts

Source-backed facts for citing this resource, derived directly from the registry — also available as plain text for AI assistants.

Source URLs
https://e2b.dev/docs, https://github.com/e2b-dev/E2B, https://www.e2b.dev
Brand
E2B
Brand domain
e2b.dev
Brand asset source
brandfetch
Safety notes
E2B is built to execute arbitrary, AI-generated code; run such code only inside its isolated cloud sandboxes, never directly on a developer machine., Sandbox network and filesystem access depend on configuration; review and restrict sandbox capabilities before running untrusted code., Generated code can still perform destructive or unexpected actions within a sandbox, so treat sandbox outputs and side effects with caution., Self-hosting deploys cloud infrastructure via Terraform that you are responsible for securing, patching, and isolating from production systems.
Privacy notes
On the managed cloud, your code and execution data are sent to and run on E2B-operated infrastructure; review their privacy terms before processing sensitive data., API keys grant access to your sandboxes; store them in environment variables or a secrets manager and never commit them to source control., Data passed into a sandbox (files, inputs, environment variables) lives in that sandbox for its lifetime; avoid sending secrets you do not need there., Self-hosting keeps execution data on your own infrastructure, making log retention, access control, and isolation your responsibility.
Author
E2B
Submitted by
JPette1783
Claim status
unclaimed
Last verified
2026-06-05

Decision playbook

Review trust signals before you adopt

Signals are present but mixed. Use the checklist below to confirm the source and operational safety for your environment.

Compare context
Selected

0

Current score

63

Baseline

Delta

No baseline selected

No major trust-signal divergence detected in the current selection.

Source and provenance checks

Needs review

Confirm ownership and provenance before trusting install instructions.

  • Source link availableRequired

    Open the canonical repository and verify ownership.

    Done
  • Source provenance statusRequired

    Marked as source-backed.

    Done
  • Metadata reviewed

    No reviewed flag detected in metadata.

    Pending

Safety and privacy checks

Complete

Validate risk disclosures before installation or API wiring.

  • Safety notes presentRequired

    Review the listed safety guidance before running commands.

    Done
  • Privacy notes presentRequired

    Review data handling notes before connecting accounts or secrets.

    Done
  • Trust level risk gateRequired

    Trust level does not block evaluation.

    Done

Package and install checks

Needs review

Check package metadata and artifact integrity signals.

  • Install payload available

    Install or copy payload is available for review.

    Done
  • Package verification flag

    No package verification flag provided.

    Pending
  • Checksum metadata

    No checksum provided for downloaded artifact.

    Pending

Compare-driven decision checks

Needs review

Use compare context to validate trade-offs before adoption.

  • Compare tray has multiple entries

    Add at least one more entry to compare trust differences.

    Pending
  • Baseline comparison available

    No baseline peer selected yet.

    Pending
  • Diverging trust signals identified

    No major trust-signal divergence found.

    Pending

Setup at a glance

Copy & paste

Copy-ready — paste the snippet to get started.

Adoption plan

Balanced adoption plan

Current risk score 24/100. Use staged verification before broader rollout.

Risk 24

Pre-adoption checks

Validate source and review signals before any execution.

  • Confirm source provenanceRequired

    Source URL/provenance metadata is present.

    Done
  • Confirm metadata review state

    No review metadata found; increase manual validation.

    Pending
  • Verify install payload

    Install/config payload exists and can be inspected.

    Done

Security checks

Confirm safety, privacy, and package integrity signals.

  • Review safety notesRequired

    Safety notes are present.

    Done
  • Review privacy notesRequired

    Privacy notes are present.

    Done
  • Verify package integrity metadata

    No package verification/checksum metadata.

    Pending

Rollout

Adopt in controlled steps based on the selected plan.

  • Run in isolated sandbox firstRequired

    Use a constrained sandbox and observe behavior across multiple tasks.

    Pending
  • Roll out graduallyRequired

    Roll out to a small cohort before wider usage.

    Pending
  • Set monitoring and fallback

    Define rollback path and monitor errors after adoption.

    Pending

Evidence readiness

Evidence readiness matrix · balanced

Missing required evidence: Metadata review. Risk score 31.

Risk 31

Source provenance

Present

Source repository/provenance is listed.

Required in this preset

Metadata review

Missing

Review metadata is missing.

Required in this preset

Safety notes

Present

Safety notes are present.

Required in this preset

Privacy notes

Present

Privacy notes are present.

Optional in this preset

Package integrity

Missing

Package integrity metadata is missing.

Optional in this preset

Install payload

Present

Install payload is available.

Required in this preset

Required gaps: Metadata review

Decision timeline

Decision timeline · balanced

Blocking gaps: Check metadata review status. Risk 28.

Risk 28

triage

Confirm source provenanceRequired

Source/provenance metadata is available.

Done

triage

Check metadata review statusRequired

Review metadata is missing.

Pending

verify

Review safety notesRequired

Safety notes are available.

Done

verify

Review privacy notes

Privacy notes are available.

Done

verify

Validate package integrity metadata

Package integrity metadata is missing.

Pending

rollout

Verify install payload and commandsRequired

Install payload is available.

Done

Blockers: Check metadata review status

Prerequisite readiness

Prerequisite readiness

3 prerequisites to line up before setup. Have accounts and credentials ready first.

0/3 ready
Account & credentials1Install & runtime1Network & hosting1

Safety & privacy surface

Safety & privacy surface

4 safety and 4 privacy notes across 6 risk areas. Review closely: credentials & tokens, permissions & scopes, network access, third-party handling.

6 areas
  • SafetyExecution & processesE2B is built to execute arbitrary, AI-generated code; run such code only inside its isolated cloud sandboxes, never directly on a developer machine.
  • SafetyNetwork accessSandbox network and filesystem access depend on configuration; review and restrict sandbox capabilities before running untrusted code.
  • SafetyExecution & processesGenerated code can still perform destructive or unexpected actions within a sandbox, so treat sandbox outputs and side effects with caution.
  • SafetyGeneralSelf-hosting deploys cloud infrastructure via Terraform that you are responsible for securing, patching, and isolating from production systems.
  • PrivacyThird-party handlingOn the managed cloud, your code and execution data are sent to and run on E2B-operated infrastructure; review their privacy terms before processing sensitive data.
  • PrivacyCredentials & tokensAPI keys grant access to your sandboxes; store them in environment variables or a secrets manager and never commit them to source control.
  • PrivacyCredentials & tokensData passed into a sandbox (files, inputs, environment variables) lives in that sandbox for its lifetime; avoid sending secrets you do not need there.
  • PrivacyPermissions & scopesSelf-hosting keeps execution data on your own infrastructure, making log retention, access control, and isolation your responsibility.

Disclosure: editorial

Safety notes

  • E2B is built to execute arbitrary, AI-generated code; run such code only inside its isolated cloud sandboxes, never directly on a developer machine.
  • Sandbox network and filesystem access depend on configuration; review and restrict sandbox capabilities before running untrusted code.
  • Generated code can still perform destructive or unexpected actions within a sandbox, so treat sandbox outputs and side effects with caution.
  • Self-hosting deploys cloud infrastructure via Terraform that you are responsible for securing, patching, and isolating from production systems.

Privacy notes

  • On the managed cloud, your code and execution data are sent to and run on E2B-operated infrastructure; review their privacy terms before processing sensitive data.
  • API keys grant access to your sandboxes; store them in environment variables or a secrets manager and never commit them to source control.
  • Data passed into a sandbox (files, inputs, environment variables) lives in that sandbox for its lifetime; avoid sending secrets you do not need there.
  • Self-hosting keeps execution data on your own infrastructure, making log retention, access control, and isolation your responsibility.

Prerequisites

  • An E2B account and API key from the dashboard, set as the `E2B_API_KEY` environment variable, for the managed cloud.
  • Python 3.8+ for the `e2b` / `e2b-code-interpreter` SDK, or Node.js 18+ for the `e2b` / `@e2b/code-interpreter` SDK.
  • Self-hosting requires Terraform and a supported cloud provider to deploy the sandbox infrastructure.

Schema details

Install type
copy
Troubleshooting
No
Source repository stats
Scope
Source repo
Tool listing metadata
Pricing
open-source
Disclosure
editorial
Application category
DeveloperApplication
Operating system
macOS, Windows, Linux
Full copyable content
# Python
pip install e2b-code-interpreter

# JavaScript / TypeScript
npm i @e2b/code-interpreter

About this resource

Overview

E2B is open-source infrastructure for running AI-generated code in secure, isolated sandboxes in the cloud. It targets developers building AI agents and LLM applications that need a safe place to execute model-generated code without exposing local machines or production systems.

You control sandbox lifecycle programmatically through SDKs while E2B manages the underlying infrastructure. The project is released under Apache-2.0, can be self-hosted via Terraform, and also offers a managed cloud that requires an API key.

Features

  • Secure execution of AI-generated code in isolated cloud sandboxes.
  • Python and JavaScript/TypeScript SDKs for sandbox lifecycle control.
  • A Code Interpreter package (e2b-code-interpreter, @e2b/code-interpreter) for executing and interpreting code.
  • Self-hosting support deployable with Terraform.
  • Integration with AI agents and LLM workflows.

Use Cases

  • Give an AI agent a safe sandbox to run and verify generated code.
  • Add a code-interpreter capability to an LLM application.
  • Execute untrusted user-submitted code without touching host systems.
  • Self-host execution infrastructure to keep code and data on your own cloud.

Installation

# Python
pip install e2b-code-interpreter

# JavaScript / TypeScript
npm i @e2b/code-interpreter

Set your API key before connecting to the managed cloud:

export E2B_API_KEY=e2b_***

Disclosure

Editorial listing. No paid placement or affiliate relationship. E2B's core is open source (Apache-2.0); the managed cloud is a separate paid service.

Source citations

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How it compares

E2B side by side with 3 alternatives on trust, install, platform support, and disclosed safety notes — all from reviewed registry metadata.

1 trust signal differ across this comparison (Submitter).

Next steps differ across entries — use the actions in the table below to copy install commands and source links per resource.

Field

Open-source infrastructure for running AI-generated code in secure, isolated cloud sandboxes, with Python and JavaScript SDKs, a Code Interpreter package, and self-hosting options.

Open dossier

Open-source infrastructure for securely running AI-generated code in isolated sandboxes that start in milliseconds, with SDKs for Python, TypeScript, and other languages, persistent snapshots, and an optional managed cloud.

Open dossier

Apache-2.0 sandbox runtime and SDK suite for AI agents, with Python, Java/Kotlin, JavaScript/TypeScript, C#/.NET, and Go SDKs, Docker and Kubernetes runtimes, OpenSandbox MCP server, CLI, code interpreter, filesystem and command tools, network policy, credential vault, and secure container runtime guidance.

Open dossier

Open-source project behind CodeLayer, an IDE for orchestrating AI coding agents built on Claude Code, with keyboard-first workflows, team context engineering, and parallel Claude Code sessions across worktrees and cloud workers.

Open dossier
Next stepsDiffers
Trust
Review statusNot reviewedNot reviewedNot reviewedNot reviewed
Package trustPackage not verifiedPackage not verifiedPackage not verifiedPackage not verified
Source provenanceSource-backedSource-backedSource-backedSource-backed
SubmitterDiffersJPette1783JPette1783JPette1783
Install riskReview firstReview firstReview firstReview first
Notes Safety ✓ Privacy ✓ Safety ✓ Privacy ✓ Safety ✓ Privacy ✓ Safety ✓ Privacy ✓
BrandE2B logoE2BDaytona logoDaytonaKubernetes logoKubernetesHumanLayer logoHumanLayer
Categorytoolstoolstoolstools
SourceSource-backedSource-backedSource-backedSource-backed
AuthorE2BDaytonaOpenSandboxHumanLayer
Added2026-06-052026-06-052026-06-182026-06-05
Platforms
Harness
Source repo
Safety notesE2B is built to execute arbitrary, AI-generated code; run such code only inside its isolated cloud sandboxes, never directly on a developer machine. Sandbox network and filesystem access depend on configuration; review and restrict sandbox capabilities before running untrusted code. Generated code can still perform destructive or unexpected actions within a sandbox, so treat sandbox outputs and side effects with caution. Self-hosting deploys cloud infrastructure via Terraform that you are responsible for securing, patching, and isolating from production systems.Daytona is purpose-built to execute arbitrary, AI-generated code; only run untrusted code inside its isolated sandboxes, never on the host. Each sandbox has its own kernel, filesystem, and network stack, but sandboxes can make outbound network requests unless network limits are configured. Sandboxes support computer use, Git operations, and command execution; scope what an agent can do and review declarative builder configurations before use. Self-hosting runs runner compute nodes and Docker services that need elevated host privileges; isolate the deployment from production systems. Persistent snapshots retain sandbox filesystem state across sessions, which can preserve secrets or sensitive files written during execution.OpenSandbox exposes sandbox creation, command execution, file read/write/delete/search/move, endpoint exposure, metrics, and lifecycle control; restrict who can call those tools and which images they can run. MCP clients can ask OpenSandbox to write files, run commands, install dependencies, expose ports, and kill or renew sandboxes. Require approval gates for high-impact workloads. Container and Kubernetes sandboxes are isolation boundaries, not magic safety guarantees; configure seccomp, capabilities, mounts, network egress, resource limits, image trust, and cleanup behavior. Credential Vault can reduce secret exposure, but injected credentials still need least privilege, rotation, audit logging, and outbound network controls. Security policy says only the latest release and main branch are actively supported with security updates; pin versions and plan upgrades accordingly.CodeLayer orchestrates AI coding agents that edit files and run commands in your repositories, so it inherits the execution risks of the underlying Claude Code agent. MultiClaude runs multiple Claude Code sessions in parallel across git worktrees; review changes per worktree before merging to avoid conflicting or unreviewed edits. Remote cloud workers can run agent sessions on external infrastructure; understand where code executes before enabling them. Scaling agent workflows to a whole team increases the blast radius of automated edits, so keep human review and branch protections in place.
Privacy notesOn the managed cloud, your code and execution data are sent to and run on E2B-operated infrastructure; review their privacy terms before processing sensitive data. API keys grant access to your sandboxes; store them in environment variables or a secrets manager and never commit them to source control. Data passed into a sandbox (files, inputs, environment variables) lives in that sandbox for its lifetime; avoid sending secrets you do not need there. Self-hosting keeps execution data on your own infrastructure, making log retention, access control, and isolation your responsibility.Using the managed cloud sends your code, files, and execution data to Daytona-operated infrastructure; review their terms before processing sensitive data. The platform emits OpenTelemetry metrics, log streaming, and audit logs that can capture command output and activity. API keys grant access to your sandboxes and organization; store them as secrets and never commit them to source control. Self-hosting keeps execution data on your own infrastructure but you become responsible for log retention, access control, and isolation.Sandbox workloads can process source code, prompts, tool arguments, command output, uploaded files, generated files, environment variables, credentials, logs, metrics, endpoints, and network destinations. The MCP server and CLI can store API keys, domain configuration, sandbox IDs, command history, file paths, and endpoint details in local configs, shell history, logs, or MCP client state. Kubernetes, Docker registries, ingress gateways, credential vaults, OpenTelemetry or audit systems, and hosted OpenSandbox endpoints may retain workload metadata and outputs depending on deployment. Do not run untrusted code with access to private networks, production credentials, customer data, or broad egress without isolation, monitoring, and retention rules.Because it builds on Claude Code, repository code and context are sent to Anthropic's API to power the agent. Remote cloud workers process your code and context on external infrastructure; review the provider's terms before sending private code. Any API keys or credentials used by Claude Code and CodeLayer should be stored as secrets, not committed to source control. Team and context-engineering features can share prompts, context, and workflow data across collaborators, so avoid placing secrets in shared context.
Prerequisites
  • An E2B account and API key from the dashboard, set as the `E2B_API_KEY` environment variable, for the managed cloud.
  • Python 3.8+ for the `e2b` / `e2b-code-interpreter` SDK, or Node.js 18+ for the `e2b` / `@e2b/code-interpreter` SDK.
  • Self-hosting requires Terraform and a supported cloud provider to deploy the sandbox infrastructure.
  • A Daytona Cloud account and API key for the managed service, or self-hosted infrastructure for the open-source platform.
  • Python 3.8+ for the `daytona` SDK or Node.js 18+ for the `@daytona/sdk` TypeScript SDK.
  • Docker and Docker Compose to run supporting services (PostgreSQL, Redis) when self-hosting.
  • Nix with flakes enabled or a devcontainer-compatible editor for local development of the platform itself.
  • Python 3.10 or newer for the Python SDK, CLI, and MCP package, or the selected Java/Kotlin, JavaScript/TypeScript, .NET, or Go runtime for another SDK.
  • Docker for local execution, or Kubernetes and cluster access for distributed scheduling.
  • An OpenSandbox server endpoint, protocol, API key, sandbox image, timeout, network policy, and cleanup policy.
  • Credential Vault and egress policy design before letting agent workloads reach external APIs or private services.
  • Claude Code, since CodeLayer is built on top of it and orchestrates Claude Code sessions.
  • An Anthropic account or API access for the underlying Claude Code agent.
  • A recent CodeLayer build from the project's GitHub releases or the waitlist for early access.
  • Git, since parallel-session workflows rely on worktrees.
Install
pip install opensandbox
Config
Citations
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