Skip to main content
NexoraLaunch home

Build log live

HOL Guard vs Sandbox0

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

HOL Guard compared with Sandbox0
Detail HOL Guard Sandbox0
What it doesRuntime security layer that stops risky AI actions before they execute Cloud agent sandbox with persistent filesystem and on-demand compute
StageNot given MVP
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Paid
PricingFree plan: Local Guard runtime with real-time approval prompts and local audit log. Solo $4.99/mo: adds 2 cloud-connected devices and 30-day cloud retention. Pro $15/mo: adds 5 cloud-connected devices, 180-day retention, and policy versioning. Team $30/seat/mo: up to 25 cloud-connected devices, 365- 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
Key features
  • Surface-specific pre-action interception
  • Policy routing with allow, observe, ask, and block outcomes
  • Local review and evidence workflows
  • MCP, skill, plugin, and package inspection
  • Layered local and team policy
  • Open source runtime under Apache-2.0
  • Offline local protection without cloud connectivity
  • Continuous GitHub leaked-secret monitoring
  • Decision audit trail and export
  • Support for multiple AI coding agents
  • 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
What makes it different
  • Open-source core runtime runs locally without cloud requirement
  • Protects against secrets, destructive commands, prompt injection, and supply chain attacks
  • No source code or secrets uploaded; decisions stored as redacted summaries
  • 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
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)53 +1 (up) since last check16 +1 (up) since last check
Trust Flow (Majestic)275
Citation Flow (Majestic)4421
Referring domains (Majestic)73517

5 details filled in for both companies.

More alternatives to HOL Guard More alternatives to Sandbox0

Ask a question