E2B
Open-source Firecracker sandboxes with Python and TypeScript SDKs for AI agents.
Overall in sandbox providers
7of 19 · score 73.1
Data coverage
100%
26 of 26 fields sourced
Best for
- •You want the category default with a real self-host escape hatch
- •Your environments are already Dockerfiles
- •Python code-interpreter workloads at steady volume
Strong on
- +Browser inside Yes 1/18
- +SDKs python, typescript, cli 2/19
- +Runtimes python, javascript-typescript, bash, any-oci-image 2/18
- +GitHub stars 15,000 3/7
Weak on
- −Egress control open 15/19Better: Daytona: allowlist
vs CodeSandbox SDK
- •Ahead on MCP server: Partial vs No
- •Ahead on Browser inside: Yes vs Partial
- •Behind on Snapshot & fork: Partial vs Yes
- •Behind on Persistent FS: Partial vs Yes
How E2B scores among 19 sandbox providers26 of 26 fields known
Runtime13
Cold start
400ms
5/16
Leader: Riza · 120ms
Persistent FS
Partial
12/19
Leader: Modal · Yes
Snapshot & fork
Partial
6/19
Leader: Daytona · Yes
GPU
No
6/15
Leader: Modal · Yes
Runtimes2nd
python, javascript-typescript, bash, any-oci-image
2/18
Leader: boat · python, javascript-typescript, bash, go, rust, java, ruby, php, any-oci-image
Sydney region
No
8/18
Leader: Fly.io Machines · Yes
Concurrent limit
100 sandboxes
5/15
Leader: Vercel Sandbox · 2,000 sandboxes
Isolation & network3
Agent integration3
MCP server
Partial
6/18
Leader: Daytona · Yes
SDKs2nd
python, typescript, cli
2/19
Leader: Runloop · python, typescript, rest-api, cli
Pricing3
Price / hour
$0.17/hr
8/17
Leader: boat · $0.018/hr
Idle cost
storage-only
9/19
Leader: Fly.io Machines · free-when-stopped
Traction2
Positioning1
Positioning
Open-source infrastructure for running AI-generated code.
Timeline1
Shipped
2023
10/16
Leader: Daytona · 2025
Blaxel
boat
Cloudflare Sandbox
CodeSandbox SDK
Daytona
Self-hosted Firecracker
exe.dev
Fly.io Machines