Sandbox0 vs VitalSend™

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sandbox0 compared with VitalSend™
Detail	Sandbox0	VitalSend™
What it does	Cloud agent sandbox with persistent filesystem and on-demand compute	Send files encrypted from AI agents
Stage	MVP	Not given
Founded	Not given	Not given
Based in	US	SE
Pricing model	Paid	Not given
Pricing	Compute: $0.015 per GiB-hour (approximately $0.000004167 per GiB-second, billed by the second). Storage: $0.02 per GiB-month for retained incremental RootFS data and memory checkpoints. Network ingress and egress currently free. Object-store GET and PUT requests free. New users receive $5 free credi	Free: 3 transfers per month up to 1 GB each with verified email account. One transfer: from €2.50 (up to 1 GB), €3.50 (up to 10 GB), €5.50 (up to 100 GB), €9.50 (up to 1 TB). Basic: €9/month (first month €0.90), 20 credits monthly. Pro: €19/month (first month €1.90), 80 credits monthly. Extra credit
Key features	Automatic filesystem growth as storage fills Pause compute without losing work or paying compute charges Resume to same environment on demand Access files while paused without waking compute Public HTTP services with auto-resume capability Command-line interface (s0 CLI) for agent-native workflows Incremental checkpoints to avoid full filesystem copies Scoped API keys and team-based access controls On-demand file reads without downloading entire filesystem	End-to-end encryption with XChaCha20-Poly1305 One-time download only, then automatic destruction Supports files up to 1 TB Password protection included by default Integration with Claude, Cursor and Claude Desktop API key support for CI and scripts Resumable uploads for large files No readable file contents stored by service
What makes it different	Persistent filesystem across pause/resume without duplicating data Pay only for compute time used; paused sandboxes have zero compute charges Automatic filesystem growth so agents can install and persist unlimited tools Same API for both human users and AI agents	Files encrypted on sender's device before upload Automatic permanent destruction after one download No recovery possible by design Repeated wrong password attempts destroy the transfer
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	16 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	5	0
Citation Flow (Majestic)	21	0
Referring domains (Majestic)	17	0

5 details filled in for both companies.

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