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Added on Nov 01,2026
kosa8 is secure infrastructure for AI agents that gives every agent its own sealed machine, so coding and other agents can work unattended without access to the rest of a computer.
Each sandbox is a microVM with its own kernel and disk, running on the user's own Mac or Linux machine, in their cloud or air-gapped. A sandbox can be saved, copied and rewound in about a second when an agent gets something wrong.
The agent only sees the workspace folder it is given, such as a single repo. API keys stay on the host and the sandbox holds a placeholder, while the network is closed except through an egress broker, and every call is audited.
Key features include secure agent runs, save and undo, a dashboard, local models, an assistant, governance and MCP policies, and capacity add-ons for larger sandboxes.
It is Docker-compatible and MCP-native, comes with a Claude Code plugin, and can run agents such as Claude Code, Codex, Gemini or custom agents. A partner program is offered for IT services firms, integrators and MSSPs.
Pricing: every plan starts with a free 14-day trial and there is no permanent free tier. Solo costs $29 per month, Pro $89 per month, Team $169 per person per month (from 3 people) and Scale $199 per person per month (from 5 people), with annual billing and Enterprise and Government options available.
It is suited to software teams, AI product teams, security teams, solo founders and regulated industries such as finance, health and government that run AI agents.
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