Cloud agent sandbox with persistent filesystem and on-demand compute
AI deep research API that checks every cited claim against its source
Stage
MVP
Startup
Founded
Not given
2026
Based in
US
US
Pricing model
Paid
Paid
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
Searches 45+ structured sources including SEC filings, statistics agencies, scholarly indexes, books and government records
Workspace vault with searchable full-text source storage and independence clustering
Integrated MCP server for Claude, Cursor, ChatGPT and other clients
Contradiction mapping identifies and investigates disagreements in evidence
Automatic report generation with verified citations before shipping
Citation verification API for external documents
Markdown import and export for vault documents
Integrated Answers MCP with ask and search tools for AI 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
Every cited claim is verified against the original source before report delivery
Searches structured sources like SEC filings and scholarly databases alongside the open web in one call
Delivers answers with word-for-word quotes so readers can verify in one click
Open-source CLI that powers the hosted service, maintaining feature parity
Pay-as-you-go pricing with no minimum commitment or sales team required