kosa8

Key facts: kosa8 launched on Product Hunt in November 2026 as security infrastructure for enterprise AI agents. Every agent gets its own microVM with its own kernel, on your Macs, Linux servers, cloud or fully air-gapped. The agent sees one folder, API keys stay on the host, the network is closed except the hosts you allow, and you can rewind the whole machine in about a second. It is Docker-compatible and MCP-native, with a hash-chained audit trail.

Plans: 14-day free trial with every feature, no card. Solo is $29 a month, Pro $89 a month, and Team $169 per person a month.

Best for: Teams whose agents touch production systems, money or sensitive data. Who should skip it: solo hobbyists running one agent on toy projects.

Pros

• Every agent runs in its own sealed microVM with its own kernel
• Rewind the whole machine in about a second when an agent gets it wrong
• API keys stay on the host and the network stays closed except allowed hosts
• 14-day free trial with every feature, no card, and one-line install

Watch out for

• Built for teams with real risk: overkill for a single hobby agent
• Solo plan covers one person with one assistant running
• Enterprise air-gapped pricing is quoted, not published

Best for

Teams whose agents touch production systems, money or sensitive data. Who should skip it: solo hobbyists running one agent on toy projects, or teams whose agents never leave a sandbox they already trust.

Pricing

14-day free trial, every feature, no card. Solo $29/month, Pro $89/month, Team $169/person/month.

FAQs

What is kosa8? Secure microVM sandboxes for AI agents: every agent gets its own sealed machine with its own kernel, on your Mac, Linux servers, cloud or fully air-gapped.

What happens if an agent goes wrong? You can rewind the whole machine in about a second, and every call is recorded in a hash-chained audit trail.

Where do my API keys live? On the host, not in the sandbox: the agent sees one folder and a placeholder, and the network is closed except the hosts you allow.

Is there a free trial? Yes, 14 days with every feature and no card required.