Preview. These maps are our reading of public sources and haven't been checked with the projects' maintainers yet.
E2B
Cloud sandboxes for agents and AI-generated code: Firecracker microVMs started and driven through Python/JS SDKs, with an open-source runtime you can also host yourself.
e2b.dev/Active
e2b-dev/E2B @e2b/python-sdk 2.59.0 released 2026-10-22; runtime repo (e2b-dev/runtime, formerly e2b-dev/infra) pushed 2026-10-25. (checked 2026-10-25)
In Agent guardrails
Where it stands apart
- Do you need an account to use it? account required (24% of 21 others)
- Which shared standard or format does it mainly build on? OCI / Docker container images (5% of 21 others)
- What mainly decides whether an action is allowed? no per-action decision: it isolates, inventories, or records (24% of 21 others)
- In the default setup, where does the agent's work actually execute? in a remote or cloud sandbox (10% of 21 others)
- Does it control the agent's outbound network access? yes, but open by default or optional (25% of 16 others)
What it shares with most of the community
- Is it actively maintained? active (81% of 21 others)
- How is the main thing licensed? permissive open source (MIT/Apache/BSD) (67% of 21 others)
- How is it mainly sustained? company with a paid product, tier, or ads (50% of 20 others)
- Can it run entirely on your own device or infrastructure, without the maker's servers? yes (76% of 21 others)
- Who is it for? developers (90% of 21 others)
- If the guard itself breaks, is missing, or cannot decide, what happens by default? fails closed: the action does not run (71% of 17 others)
- Which agents does it work with? any agent or process (not limited to a named list) (71% of 21 others)
- What is the main thing it protects? the developer's machine and files (52% of 21 others)
- Is enforcement kept out of the agent's reach? yes, enforced in code or infrastructure the agent cannot change (95% of 21 others)
Nearest neighbors
- Daytona 82% of 17 shared answers match
- Drop 71% of 17 shared answers match
- OpenAI Codex sandbox 69% of 16 shared answers match
Every answer
| Question | Answer | Source |
|---|---|---|
| Is it actively maintained? | active | source 2026-10-25 |
| How is the main thing licensed? | permissive open source (MIT/Apache/BSD) Apache-2.0 for SDKs and the runtime. | source 2026-10-25 |
| How is it mainly sustained? | company with a paid product, tier, or ads Hosted usage-based cloud; the open runtime is the same code. | source 2026-10-25 |
| Can it run entirely on your own device or infrastructure, without the maker's servers? | yes The runtime README links 'Run it yourself'; it is real infrastructure (Firecracker hosts), not a laptop install. | source 2026-10-25 |
| Do you need an account to use it? | stands apart account required Quickstart step 1: create E2B account, copy API key. Self-hosting exists but hosted use needs an account. | source 2026-10-26 |
| Who is it for? | developers | source 2026-10-25 |
| Which shared standard or format does it mainly build on? | stands apart OCI / Docker container images Templates built from Dockerfiles/OCI images; the API itself is E2B's own. | source 2026-10-26 |
| Where does it mainly step in? | at the OS or VM boundary (sandbox, container, syscall supervisor) | source 2026-10-25 |
| What mainly decides whether an action is allowed? | stands apart no per-action decision: it isolates, inventories, or records Isolation, not per-action policy; network allow/deny lists exist. | source 2026-10-25 |
| If the guard itself breaks, is missing, or cannot decide, what happens by default? | fails closed: the action does not run Code only runs inside the remote sandbox, so there is nothing to bypass if it is unavailable. | source 2026-10-25 |
| Which agents does it work with? | any agent or process (not limited to a named list) | source 2026-10-25 |
| In the default setup, where does the agent's work actually execute? | stands apart in a remote or cloud sandbox | source 2026-10-25 |
| What is the main thing it protects? | the developer's machine and files Keeps untrusted code off the developer's or app's own hosts. | source 2026-10-25 |
| Does it keep a record of agent actions? | no, or not a focus | source 2026-10-25 |
| Does it control the agent's outbound network access? | stands apart yes, but open by default or optional 'Every sandbox has outbound internet access by default'; allowInternetAccess and allow/deny lists restrict it. | source 2026-10-25 |
| What is it mainly for? | letting agents run with fewer approvals, safely | source 2026-10-25 |
| Is enforcement kept out of the agent's reach? | yes, enforced in code or infrastructure the agent cannot change | source 2026-10-25 |
Sources
This page was derived from:
- GitHub · github.com/e2b-dev/E2B · read 2026-10-25
- GitHub · github.com/e2b-dev/runtime · read 2026-10-25
- Web page · e2b.dev/ · read 2026-10-25
- Web page · e2b.dev/docs/network/internet-access · read 2026-10-25
- Web page · e2b.dev/pricing · read 2026-10-25
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