E2B

sandbox

Properties

vendor: E2B
url: https://www.e2b.dev/
whatItIs: Firecracker microVM sandboxes for agents; session-scoped, sub-150ms cold start, Python/JS/Ruby execution.
hosting: managed-only
pricingModel: per-second
sandboxRuntime: Firecracker microVM
modelProviders: agnostic
stateModel: session-scoped
toolModel: code-exec
includesBrowser: false
includesMemory: false
longRunning: up to 24h per session
hitlSupport: false
observability: basic logs
maturity: ga
notes: Developer-focused. Sub-150ms cold starts; 24h max session is a hard ceiling.
launched: 2023-06