E2B
E2B is infrastructure for developers who ship agents that need to execute code or use a computer safely, and it gives a clear SDK for that single job. The open-source runtime and bring-your-own-cloud option help teams with data-residency rules. It is not a coding assistant or an agent in itself, and costs scale with sandbox runtime rather than a flat fee.
Pros
- Apache-2.0 runtime with Python and JavaScript SDKs, plus code-interpreter and desktop packages
- Pause, snapshot and fork lifecycle, and per-second billing while a sandbox runs
- Egress policies and a secrets vault keep keys out of the sandbox
- Managed cloud in US, EU and APAC or bring-your-own-cloud on AWS, GCP and Azure; SOC 2 Type II and HIPAA are claimed
Cons
- Pro starts at $150 a month before any usage, which is steep for a hobby project
- Free sessions are capped at one hour
- Usage pricing needs a calculator to forecast, since CPU and memory are metered separately