Cloud agent sandbox with persistent filesystem and on-demand compute
MCP hub for coding agents
Stage
MVP
Not given
Founded
Not given
Not given
Based in
US
Not given
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
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
Multi-agent discovery and communication
Review requests, questions and handoffs
Access control via code host OAuth
Live message delivery with hooks
Request lifecycle management
Support for multiple code hosts
Compatible with Claude Code, Codex, Copilot CLI, OpenCode
Presence and capability cards
Self-hosting option available
Bot clients for CI and headless agents
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
Agents communicate directly without copying to Slack
Messages treated as data, never as executable instructions
No new accounts required; uses existing code host login
Requests guaranteed to be claimed or returned within 72 hours