E2B vs Watasu

E2B costs $0.0504 per vCPU-hour. E2B runs Firecracker microVMs and limits a session to 24 hours. Watasu limits a session to 24 hours.

Updated Oct 15, 2026

E2B

Open-source sandbox platform that gives AI agents isolated machines.

Isolation: Firecracker microVM
Free tier: $100 credit, one time
Max session: 24 hours

Visit site E2B profile

Watasu

Isolated Linux sandboxes for AI agents, hosted in the EU.

Isolation: Not listed
Free tier: Free Basic plan
Max session: 24 hours

Visit site Watasu profile

What is different

2 fields differ. The rest are the same or not listed.

Field

E2B

Watasu

Storage: E2B: Free; Watasu: Retained disks €0.10 per GiB per month while the sandbox is stopped. Checkpoints and templates €0.03 per GiB per month.
Free tier: E2B: $100 credit, one time; Watasu: Free Basic plan

Full comparison

18 fields, at each provider's list price

E2Be2b.dev/pricing

Watasuwatasu.io/pricing

Pricing

vCPU, per hour: E2B: $0.0504; Watasu: Not listed
RAM, per GiB-hour: E2B: $0.0162; Watasu: Not listed
Storage: E2B: Free; Watasu: Retained disks €0.10 per GiB per month while the sandbox is stopped. Checkpoints and templates €0.03 per GiB per month.
Free tier: E2B: $100 credit, one time; Watasu: Free Basic plan
Paid plan from: E2B: $150 / month; Watasu: Not listed
Billing: E2B: Per second; Watasu: Per second

Limits

Max session: E2B: 24 hours; Watasu: 24 hours
Idle stop: E2B: Not listed; Watasu: Not listed
Largest sandbox: E2B: 8 vCPU · 8 GiB; Watasu: 8 vCPU · 8 GiB
Concurrent sandboxes: E2B: Up to 100; Watasu: Up to 100

Platform

Isolation: E2B: Firecracker microVM; Watasu: Not listed
GPU: E2B: No; Watasu: Not listed
Snapshots: E2B:; Watasu:
Pause and resume: E2B:; Watasu:

Developer

SDKs: E2B: Python, JavaScript / TypeScript; Watasu: Not listed
Integrations: E2B: LangChain, OpenAI Agents SDK, Vercel AI SDK, MCP, Claude Code; Watasu: Not listed

Trust

License: E2B: Apache-2.0; Watasu: Not listed
BYOC: E2B: Enterprise plan; Watasu: Not listed

Hourly cost

One sandbox running for one hour

Size

E2B

Watasu

1 vCPU · 2 GiB: E2B: $0.083; Watasu: Not listed
2 vCPU · 4 GiB: E2B: $0.166; Watasu: Not listed
4 vCPU · 8 GiB: E2B: $0.331; Watasu: Not listed

Compute only, at list rates.

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Which one fits

Based on the fields above

E2B fits when

You want an open-source platform (Apache-2.0) that you can self-host.
You use LangChain, the OpenAI Agents SDK, the Vercel AI SDK, MCP or Claude Code.
You need a desktop in the sandbox.
You need the sandboxes in your own cloud account.

More comparisons

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E2B

Watasu

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

E2B fits when

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