Kosa8
What is Kosa8?
kosa8 provides secure infrastructure for running AI agents in isolated virtual machines. Each agent gets its own sealed machine with a dedicated kernel and disk, restricted network access, and credentials kept outside the sandbox. Users can save, copy, and rewind machines, run local models, and review tamper-evident audit records. kosa8 works on supported personal computers, in the cloud, and in air-gapped environments, with Docker-compatible tools and options for approvals and organizational policies.
How to use Kosa8?
Install kosa8 with `curl -fsSL https://kosa8.com/install.sh | sh`, then run `kosa8 doctor` to check the machine. Start an agent in a sealed sandbox with a command such as `kosa8 agent run claude`. Configure permitted network access, save or fork sandboxes as needed, and use audit and governance tools to review activity. The product offers a 14-day trial with no account or card required.
Kosa8's Core Features
Runs each AI agent in its own virtual machine with an independent kernel and disk.
Allows users to save, copy, fork, and rewind sandboxes, including rapid restoration.
Keeps API keys outside the sandbox and provides a closed network with allow-listed egress.
Creates tamper-evident, hash-chained audit records and signed evidence packages.
Supports human approvals, signed organizational policies, and governance features on eligible plans.
Runs local models and supports agent kits for Claude Code, Codex, Gemini, and other agents.
Provides Docker CLI and Compose compatibility through a Docker-compatible API.
Supports Apple-silicon Macs, x86-64 Linux, Windows 11 through WSL2 preview, cloud, and air-gapped deployments.
Kosa8's Use Cases
Run coding agents against a specific repository without exposing the rest of a developer's computer or credentials.
Fork a running sandbox into multiple copies to test parallel tasks or agent outputs.
Detonate malware samples in disposable virtual machines with simulated, recorded internet access.
Provide isolated sandboxes for third-party MCP servers under a shared policy.
Run AI workflows in regulated environments with approvals, signed policies, and verifiable audit evidence.
Let agents work unattended and restore a sandbox if a command or task causes damage.
FAQ from Kosa8
Is there a free trial?
What happens after the trial ends?
Does my code or data leave my machine?
How are copies counted?
Which systems can run kosa8 sandboxes?
Can I verify usage and billing?
Is kosa8 suitable for regulated or offline environments?
Kosa8 Support Email & Customer service contact & Refund contact etc.
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Kosa8 Pricing
Solo
$29/month or $290/year
One person; 4 concurrent copies and 64 GB sandboxes. Annual billing includes two months free.
Pro
$89/month or $890/year
One person managing a fleet; 16 concurrent copies and 128 GB sandboxes. Annual billing includes two months free.
Team
$169/person/month or $1,690/person/year
For teams of at least 3; 48 shared concurrent copies and 256 GB sandboxes, with governance and MCP policies. Annual billing includes two months free.
Scale
$199/person/month or $1,990/person/year
For teams of at least 5; 160 shared concurrent copies and 500 GB sandboxes, with governance and MCP policies. Annual billing includes two months free.
Enterprise & Government
Contact for pricing
Unlimited concurrent copies and sandbox size, all products including the Compliance Pack, FIPS 140-3 builds, and offline site licensing.
Burst Pass
$49
Adds 32 concurrent copies for 24 hours.
Overage
$0.10 per copy-hour
Optional hourly billing for copies above the plan limit; must be enabled.
Sandbox capacity add-on
$100/month for 500 GB or $200/month for 1 TB
Adds capacity for saving, forking, and pushing larger sandboxes on any plan.
Compliance Pack
$1,500/month
Additional compliance evidence and related capabilities.
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