Phonebox vs xShellz Agent Shell
Phonebox limits a session to 3 hours. xShellz Agent Shell runs gVisor and has no session limit.
Updated
Phonebox
- Isolation
- Not listed
- Free tier
- $2 starter credit, one time, no card
- Max session
- 3 hours
xShellz Agent Shell
- Isolation
- gVisor
- Free tier
- Free plan, 1 box with 0.5 vCPU and 512 MB
- Max session
- No limit
What is different
5 fields differ. The rest are the same or not listed.
Phonebox
xShellz Agent Shell
- Free tier
- Phonebox: $2 starter credit, one time, no card
- xShellz Agent Shell: Free plan, 1 box with 0.5 vCPU and 512 MB
- Paid plan from
- Phonebox: Pay as you go
- xShellz Agent Shell: $10 / month
- Max session
- Phonebox: 3 hours
- xShellz Agent Shell: No limit
- SDKs
- Phonebox: TypeScript
- xShellz Agent Shell: Python, JavaScript / TypeScript, Go, Java, Ruby, Rust
- Integrations
- Phonebox: MCP
- xShellz Agent Shell: MCP, Claude Code
Full comparison
18 fields, at each provider's list price
Phoneboxphonebox
xShellz Agent Shellxshellz
Pricing
- vCPU, per hour
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
- RAM, per GiB-hour
- Phonebox: Not listed
- xShellz Agent Shell: Included
- Storage
- Phonebox: Not listed
- xShellz Agent Shell: Free
- Free tier
- Phonebox: $2 starter credit, one time, no card
- xShellz Agent Shell: Free plan, 1 box with 0.5 vCPU and 512 MB
- Paid plan from
- Phonebox: Pay as you go
- xShellz Agent Shell: $10 / month
- Billing
- Phonebox: Bundled machine time
- xShellz Agent Shell: Bundled machine time
Limits
- Max session
- Phonebox: 3 hours
- xShellz Agent Shell: No limit
- Idle stop
- Phonebox: After 5 minutes
- xShellz Agent Shell: Not listed
- Largest sandbox
- Phonebox: Not listed
- xShellz Agent Shell: 4 vCPU · 4 GiB
- Concurrent sandboxes
- Phonebox: Up to 5
- xShellz Agent Shell: Up to 5
Platform
- Isolation
- Phonebox: Not listed
- xShellz Agent Shell: gVisor
- GPU
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
- Snapshots
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
- Pause and resume
- Phonebox:
- xShellz Agent Shell:
Developer
- SDKs
- Phonebox: TypeScript
- xShellz Agent Shell: Python, JavaScript / TypeScript, Go, Java, Ruby, Rust
- Integrations
- Phonebox: MCP
- xShellz Agent Shell: MCP, Claude Code
Trust
- License
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
- BYOC
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
Hourly cost
One sandbox running for one hour
Phonebox
xShellz Agent Shell
- 1 vCPU · 2 GiB
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
- 2 vCPU · 4 GiB
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
- 4 vCPU · 8 GiB
- Phonebox: Not listed
- xShellz Agent Shell: Not listed
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Phonebox fits when
- You want to pay only for usage, with no plan fee.
xShellz Agent Shell fits when
- A session must run longer than 3 hours.
- You use Claude Code.
- You need GDPR.
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