Sandbox0 vs ActionBox

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 ActionBox
Detail	Sandbox0	ActionBox
What it does	Cloud agent sandbox with persistent filesystem and on-demand compute	Human approval infrastructure for AI agents and automation workflows
Stage	MVP	Not given
Founded	Not given	Not given
Based in	US	Not given
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	Developer: Free forever with 250 Actions/month, 3 Sources, 3 Watches, 7-day history. Pro: $10/month ($120/year, save 17%) with 1,000 Actions/month, unlimited Sources, 20 Watches, 30-day history, additional Actions at $8 per 1,000-pack. Team: $49.17/month ($590/year, save 17%) with 5,000 Actions/mont
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	Typed decisions (Boolean, choice, text, number, rating, structured forms) Heartbeat Watches for silent-work detection Action Controls for safe follow-up operations Multi-surface inboxes (web, mobile, Slack, CLI, MCP) Model Context Protocol (MCP) integration Signed receipts and durable decision history Mobile app for iOS (15+) with push alerts Slack approval integration (Beta) CLI with bounded long-poll waiting Integration guides for GitHub Actions, n8n, LangGraph, OpenAI Agents SDK
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	Durable decision records that survive client disconnections and restarts Reduces median approval time significantly in production environments Unified API across multiple approval surfaces without building custom dashboards Source-scoped identity for independent credential rotation across runners Built-in monitoring for stalled background work with heartbeat watches
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	5 no change since last check
Trust Flow (Majestic)	5	7
Citation Flow (Majestic)	21	24
Referring domains (Majestic)	17	42

5 details filled in for both companies.

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