E2B by E2B (FoundryLabs)

Secure cloud sandboxes (microVMs) where agents run code, start in under a second.

Code sandboxes Official MCP server Open source

Price

Free plan

paid plans from $150/mo

Free tier

Yes

Hobby: $100 one-time usage credit, sessions up to 1...

SDK downloads

3.4M

npm e2b · PyPI e2b

Status

2 incidents in 30 days

Pricing

Free tier	Hobby: $100 one-time usage credit, sessions up to 1 hour, 20 concurrent sandboxes
Cheapest paid plan	$150 a month
Usage price	$0.000014/s per vCPU ($0.0504 per vCPU-hour) + $0.0000045/s per GiB RAM; default sandbox 2 vCPU / 4 GiB
Good to know	Billed per second of running sandbox. Pro $150/month + usage (24-hour sessions, 100 concurrent; +$500/mo for 600, +$1,000/mo for 1,100). Enterprise requires $3,000/month minimum. Code-interpreter SDK: e2b-code-interpreter / @e2b/code-interpreter.

From the official pricing page, checked Oct 9, 2026. Prices change: confirm before you buy.

API	Free	Price	SDK downloads / wk	GitHub stars	MCP
Modal Sandboxes Serverless isolated containers for coding agents and untrusted code, with GPUs available.	Starter: $30/month of free compute, no monthly fee	Free plan · paid from $250/mo	11.5M	522	MCP (community)
Vercel Sandbox Ephemeral Linux microVMs on Vercel for running untrusted or AI-generated code.	Hobby: 5 active-CPU hours, 420 GB-hours...	Free plan · paid from $20/mo	6.3M	210	MCP
Daytona Fast-starting sandboxes (CPU, GPU, Windows) for running AI-generated code, billed per second.	$200 in free compute, no credit card	Free plan then vCPU $0.0504/hour; memory $0.0162 per GiB-hour; storage...	2.3M	71.6K	MCP
CodeSandbox SDK Programmatic microVM sandboxes with snapshot/fork, for running agent and user code.	Build plan: free, 10 concurrent VMs...	Free plan · paid from $170/mo	119K	112
Riza Code Interpreter API that runs untrusted Python, JavaScript, TypeScript, Ruby and PHP in WebAssembly isolation.	Hobby: up to 100,000 requests/month,...	Free plan · paid from $250/mo	3,874	5	MCP