microsandbox vs Anthropic Sandbox Runtime

microsandbox9.0Visit ASAnthropic Sandbox Runtime7.1Visit

Higher score microsandbox #2 in Sandbox Software 9.0/10 Free plan · paid from $49/mo Free plan✓ 3 of 3 features Visit microsandbox

vs

AS Anthropic Sandbox Runtime #6 in Sandbox Software 7.1/10 Open source ✓ 2 of 3 features View Anthropic SRT

• microsandbox fits best

  High-volume teams needing flexible microVMs

• Anthropic Sandbox Runtime fits best

  Engineers wanting open-source cross-platform controls

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Side by side

Feature	microsandbox 9.0/10 Visit ↗	ASAnthropic Sandbox Runtime 7.1/10 Visit ↗
At a glance
Editor score	9.0	7.1
Ranking	#2 in Sandbox Software	#6 in Sandbox Software
Best for	High-volume teams needing flexible microVMs	Engineers wanting open-source cross-platform controls
Pricing model	Free plan + paid	Free
Starting price	$49/mo	Not published
Free plan	✓ (best)	Not published
Free trial	—	—
Deployment	Cloud, Self-hosted	Self-hosted
Platforms	Windows, macOS, Linux	Windows, macOS, Linux
Support	Community, Docs	Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features microsandbox 3/3 · Anthropic Sandbox Runtime 2/3
Persistent storage	✓ (best)	Not published
Network controls	✓	✓
API or CLI access	✓	✓
Specs
Isolation method	Not published	Container
Concurrent environments	1000 environments	Not published
Deployment	Both	Self_hosted
Our review
Pros	Hardware-isolated microVMs with a separate kernel per sandbox SDKs for Rust, TypeScript/Node, Python, and Go Local, cloud, and BYOC execution with network controls	CLI wraps arbitrary commands with sandbox restrictions Filesystem, domain, proxy, and Unix socket controls Supports macOS, Linux, Windows, and API workflows
Cons	Free plan is limited to 3 total sandboxes Cloud access is in private beta and available by request Enterprise pricing uses a custom agreement	Self-hosted deployment requires operational ownership Documentation is the listed support channel Described as a beta research preview
Our verdict	microsandbox runs untrusted code, generated programs, agents, plugins, and other workloads inside hardware-isolated microVMs, with a separate kernel for each sandbox. It is aimed at developers, startup teams, and larger organizations that… Read the review →	Anthropic Sandbox Runtime is an open-source CLI and library for applying OS-level filesystem and network restrictions to arbitrary processes. It is designed for engineers managing agents, local MCP servers, shell commands, and other… Read the review →

Strengths and trade-offs

• microsandbox — where it wins

  • Hardware-isolated microVMs with a separate kernel per sandbox
  • SDKs for Rust, TypeScript/Node, Python, and Go
  • Local, cloud, and BYOC execution with network controls

  Where it doesn't

  • Free plan is limited to 3 total sandboxes
  • Cloud access is in private beta and available by request
  • Enterprise pricing uses a custom agreement

• Anthropic Sandbox Runtime — where it wins

  • CLI wraps arbitrary commands with sandbox restrictions
  • Filesystem, domain, proxy, and Unix socket controls
  • Supports macOS, Linux, Windows, and API workflows

  Where it doesn't

  • Self-hosted deployment requires operational ownership
  • Documentation is the listed support channel
  • Described as a beta research preview

• microsandbox9.0/10 · Free plan · paid from $49/mo

  Flexible sandbox infrastructure for teams running high-volume isolated workloads.

  Visit microsandboxFull verdict →
• ASAnthropic Sandbox Runtime7.1/10 · Open source

  Open-source process isolation with CLI, library APIs, and configurable network controls.

  View Anthropic SRTFull verdict →