Docker Sandboxes vs xShellz Agent Shell

Docker Sandboxes costs $0.07 per vCPU-hour. Docker Sandboxes runs microVMs and limits a session to 24 hours. xShellz Agent Shell runs gVisor and has no session limit.

Updated Oct 23, 2026

Docker Sandboxes

Cloud microVM sandboxes for coding agents, run by Docker.

Isolation: MicroVM
Free tier: $25 credit, one time
Max session: 24 hours

Visit site Docker Sandboxes profile

xShellz Agent Shell

Always-on Linux boxes for AI agents, isolated with gVisor.

Isolation: gVisor
Free tier: Free plan, 1 box with 0.5 vCPU and 512 MB
Max session: No limit

Visit site xShellz Agent Shell profile

What is different

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

Field

Docker Sandboxes

xShellz Agent Shell

Free tier: Docker Sandboxes: $25 credit, one time; xShellz Agent Shell: Free plan, 1 box with 0.5 vCPU and 512 MB
Paid plan from: Docker Sandboxes: Pay as you go; xShellz Agent Shell: $10 / month
Max session: Docker Sandboxes: 24 hours; xShellz Agent Shell: No limit
Largest sandbox: Docker Sandboxes: 16 vCPU · 32 GiB; xShellz Agent Shell: 4 vCPU · 4 GiB
Concurrent sandboxes: Docker Sandboxes: Up to 10; xShellz Agent Shell: Up to 5
Isolation: Docker Sandboxes: MicroVM; xShellz Agent Shell: gVisor
SDKs: Docker Sandboxes: JavaScript / TypeScript; xShellz Agent Shell: Python, JavaScript / TypeScript, Go, Java, Ruby, Rust

Full comparison

18 fields, at each provider's list price

Docker Sandboxesdocker.com/products/docker-sandboxesdocker.com

xShellz Agent Shellxshellz.com/pricingxshellz.com

Pricing

vCPU, per hour: Docker Sandboxes: $0.07; xShellz Agent Shell: Not listed
RAM, per GiB-hour: Docker Sandboxes: Included; xShellz Agent Shell: Included
Storage: Docker Sandboxes: Free; xShellz Agent Shell: Free
Free tier: Docker Sandboxes: $25 credit, one time; xShellz Agent Shell: Free plan, 1 box with 0.5 vCPU and 512 MB
Paid plan from: Docker Sandboxes: Pay as you go; xShellz Agent Shell: $10 / month
Billing: Docker Sandboxes: Bundled machine time; xShellz Agent Shell: Bundled machine time

Limits

Max session: Docker Sandboxes: 24 hours; xShellz Agent Shell: No limit
Idle stop: Docker Sandboxes: Not listed; xShellz Agent Shell: Not listed
Largest sandbox: Docker Sandboxes: 16 vCPU · 32 GiB; xShellz Agent Shell: 4 vCPU · 4 GiB
Concurrent sandboxes: Docker Sandboxes: Up to 10; xShellz Agent Shell: Up to 5

Platform

Isolation: Docker Sandboxes: MicroVM; xShellz Agent Shell: gVisor
GPU: Docker Sandboxes: Not listed; xShellz Agent Shell: Not listed
Snapshots: Docker Sandboxes:; xShellz Agent Shell: Not listed
Pause and resume: Docker Sandboxes:; xShellz Agent Shell:

Developer

SDKs: Docker Sandboxes: JavaScript / TypeScript; xShellz Agent Shell: Python, JavaScript / TypeScript, Go, Java, Ruby, Rust
Integrations: Docker Sandboxes: MCP, Claude Code; xShellz Agent Shell: MCP, Claude Code

Trust

License: Docker Sandboxes: Not listed; xShellz Agent Shell: Not listed
BYOC: Docker Sandboxes: Not listed; xShellz Agent Shell: Not listed

Hourly cost

One sandbox running for one hour

Size

Docker Sandboxes

xShellz Agent Shell

1 vCPU · 2 GiB: Docker Sandboxes: $0.070; xShellz Agent Shell: Not listed
2 vCPU · 4 GiB: Docker Sandboxes: $0.140; xShellz Agent Shell: Not listed
4 vCPU · 8 GiB: Docker Sandboxes: $0.280; xShellz Agent Shell: Not listed

Compute only, at list rates.

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Which one fits

Based on the fields above

Docker Sandboxes fits when

You want to pay only for usage, with no plan fee.
You want each sandbox in its own microVM.
You need snapshots.
You need a sandbox larger than 4 vCPU · 4 GiB.

xShellz Agent Shell fits when

A session must run longer than 24 hours.

More comparisons

See all comparisons

Docker Sandboxes

xShellz Agent Shell

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Docker Sandboxes fits when

xShellz Agent Shell fits when

More comparisons

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