Cloud agent sandbox with persistent filesystem and on-demand compute
Make your website usable by AI agents and see everything they do
Stage
MVP
Startup
Founded
Not given
2026
Based in
US
CH
Pricing model
Paid
Freemium
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
Not given
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
Automatic WebMCP injection for forms and actions
AI agent analytics and observability
Agent instructions, guardrails, and routing
Automatic form and action detection
One-script install with zero configuration
Real-time agent interaction tracking
WebMCP protocol implementation
Custom agent prompts and behavior configuration
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
One script tag installation with zero configuration required
Built on open standard WebMCP, not proprietary technology
Real-time observability of AI agent activity and conversions
No website rebuild required to make forms agent-ready
Dashboard control for agent instructions and guardrails
OpenHermit