# Kosa8

According to OpenAITools.app telemetry verified on 2026-11-11, Kosa8 (kosa8.com) is an AI platform indexed under AI Agent generating 0 monthly visits with a month-over-month traffic delta of +0 (0%). Its primary geographic market is Global (— traffic share), and it operates on a subscription pricing model. Top competing alternatives by monthly volume include Coder (149.42K visits/mo), Agent 37 (180.03K visits/mo), boat (66.87K visits/mo).

Secure, sovereign sandboxes for enterprise AI agents

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Kosa8 |
| Handle | kosa8 |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | kosa8.com |
| Website URL | https://kosa8.com |
| Categories | AI Agent, AI Developer Tools |
| Pricing Model | subscription |
| Monthly Visits | 0 |
| MoM Traffic Change | 0 |
| MoM Growth Rate | 0% |
| Primary Market | Global |
| Market Share | — |
| Direct Visits | 0 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 0 |
| Email Visits | 0 |
| Review Score | 4.5 |
| Saved Count | 0 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website |
| Tags | AI agent security, AI agent sandbox, Virtual machines, VM isolation, Secure infrastructure, Coding agents, Claude Code, Codex, Gemini, Local AI models, Network egress control, Allow-listed network, Credential protection, API key security, Sandbox snapshots, Sandbox restore, Virtual machine forking, Docker compatibility, MCP server isolation, Tamper-evident audit logs, Hash-chained audit trail, Signed evidence, Human approvals, Governance policies, Air-gapped deployment, Malware analysis, Incident response, FIPS 140-3 builds |

## Overview

Kosa8 targets the gap between agents that are useful and agents that are safe to leave unattended. Coding agents such as Claude Code and Codex normally inherit your shell, SSH keys and cloud credentials, so a single poisoned dependency or injected instruction can reach everything you own. Kosa8 instead gives each agent its own sealed virtual machine: a real VM with its own kernel and disk rather than a shared-kernel container. It sees one mounted folder — typically the repository — while API keys remain on your computer and only placeholder values appear inside.

The product is built around control of three things: files, credentials and network. The network is closed except for hosts the agent genuinely needs, routed through an egress broker whose rules are enforced on the host where nothing inside the sandbox can tamper with them. Bad runs are undone with a rewind instead of a rebuild, and a running sandbox can be forked into several live copies so parallel attempts are cheap. Governance features extend this to regulated teams: signed organisation policies, two-person approvals for risky actions, CUI labels that can only rise, FIPS 140-3 builds and signed evidence packages that an auditor reviews without trusting you.

Deployment is deliberately local-first. Kosa8 installs in one line on Apple-silicon Macs, x86-64 Linux, and Windows 11 through WSL2 in preview, and can also run in your own cloud or fully air-gapped. A Docker-compatible API means existing Docker CLI and Compose workflows keep working, and ready-made kits launch Claude Code, Codex, Gemini or your own agents. Security and incident-response teams use the same primitives for malware analysis and training ranges, where detonations produce signed reports and each trainee gets a live clone that resets in seconds.

## Pricing & Plans

Every plan is free for 14 days with no card required, and each tier includes monthly Kosa8 Cloud credit for cloud sandboxes. Solo is $29/month (4 agents at once, 64 GB of sandboxes, $10 Cloud credit), Pro is $89/month (16 agents, 128 GB, $25 credit), Team is $169 per person per month from 3 people (48 shared agents, 256 GB, $40 credit per person) and Scale is $199 per person per month from 5 people (160 shared agents, 500 GB, $50 credit per person). Billing is cancel-any-time from the billing portal, and annual payment saves roughly 17%. Air-gapped and Enterprise terms are negotiated directly.

## Key Features & Capabilities

- **Sealed VM per agent:** Every agent runs in a genuine VM with its own kernel and disk on Apple's Virtualization framework or KVM, not in a container that shares the host kernel.
- **Credential protection by placeholder:** The sandbox sees one mounted folder and holds placeholder values instead of real API keys, which stay on your host and are brokered only to approved hosts.
- **Host-enforced network egress control:** The network is closed by default; traffic flows only to allow-listed hosts through a broker whose rules live on the host, out of reach of anything inside the sandbox.
- **One-second snapshots and rewind:** Checkpoint before risky work and restore a running machine, processes included, in about a second rather than rebuilding it from scratch.
- **Forking and Docker compatibility:** Clone a running sandbox into multiple live copies, keep the run that passes, and give each trainee or task its own reset-on-demand machine.
- **Tamper-evident audit and approvals:** Every action is hash-chained and marked human or agent, risky steps can require two named approvers, and exports are signed so a third party can verify them offline.

## Primary Use Cases

- **Unattended coding agents (Software engineering teams):** Run Claude Code, Codex or Gemini overnight against a real repository while the VM sees one folder, holds no real API keys, and can be rewound in about a second if a run goes wrong.
- **Malware analysis and cyber ranges (Security operations and SOC analysts):** Fork one prepared environment into per-trainee live clones and detonate malware samples in a sandbox whose only internet is simulated and recorded, producing a signed report for each run.
- **Audit-ready agent governance (Regulated finance, health and government teams):** Answer auditor questions with a hash-chained record of what the agent did, who approved it and where data went, backed by signed org policies, two-person approvals and offline licences.
- **Isolated execution per end-user task (AI product engineers):** Spawn a real VM per user task in a fraction of a second, fork running machines to explore alternatives, and keep only the copy that passes validation.
- **Local agents on a personal machine (Solo developers and small studios):** Install in one line on the Mac you already own, run local models behind an OpenAI- and Anthropic-compatible API, and let agents work the night shift without risking host credentials.

## Strengths

- True VM-level isolation with a per-agent kernel instead of shared-kernel containers
- API keys never enter the sandbox, and network egress is closed by default and allow-listed
- Fast snapshots, restores and forks make parallel agent runs and disposable ranges practical
- Docker CLI and Compose work unchanged, so existing tooling and images carry over
- Governance-grade evidence: hash-chained audit trail, signed exports, two-person approvals, air-gapped and FIPS 140-3 options
- Runs on hardware you already own, including local models through an OpenAI- and Anthropic-compatible API

## Limitations

- No permanently free tier — after the 14-day trial you must pick a paid plan starting at $29/month
- Host-folder mounts read at roughly a third of native disk speed, so heavy builds should stay inside the sandbox
- Full isolation is best on Apple-silicon Macs and x86-64 Linux; Intel Macs, Windows 10/ARM and JioOS need a paired host
- Team and Scale tiers are priced per person with seat minimums, which raises the entry cost for small groups
- Air-gapped and FIPS 140-3 deployments are still enterprise sales conversations rather than self-serve

## Frequently Asked Questions

### Do I need an account or credit card to try Kosa8?
No. One command installs Kosa8 and every feature is unlocked for 14 days without an account or a card. You only sign up when you decide to keep using it.

### What happens after the 14-day trial ends?
Kosa8 is paid software with no permanently free tier. Plans start at $29 per month for Solo, and paying yearly saves roughly 17 percent.

### Does my code or data leave my machine?
No. Code, files and prompts stay wherever the sandbox runs — your laptop, your cloud or an air-gapped network. Licensing checks and usage counts come from an audit log you can verify yourself, and an offline licence sends nothing at all.

### Will sandboxing slow my agents down?
A container starts in about 178 ms and a running sandbox restores in under a second on real hardware. The one honest exception is a folder shared out from your host machine, which reads at roughly a third of native speed.

### Which computers does Kosa8 run on?
Apple-silicon Macs and x86-64 Linux run sandboxes natively, and Windows 11 on x86-64 works through WSL2 in preview. Other machines pair with a supported host in one command.

### Do we have to change how our team works?
No. The Docker CLI and Docker Compose keep working unchanged through a Docker-compatible API, and kosa8 agent run <kit> launches Claude Code, Codex, Gemini and other agents in one command.

### Can a regulated company use Kosa8?
That is a core audience. Kosa8 offers FIPS 140-3 builds, signed organisation policies, two-person approvals, CUI labels, air-gapped operation and signed evidence packages, with contract and procurement paperwork available on request.

### What is Kosa8's monthly traffic and growth trend?
Kosa8 currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

### Is Kosa8 free? What is its pricing model?
Kosa8 operates on a subscription pricing model. Every plan is free for 14 days with no card required, and each tier includes monthly Kosa8 Cloud credit for cloud sandboxes. Solo is $29/month (4 agents at once, 64 GB of sandboxes, $10 Cloud credit), Pro is $89/month (16 agents, 128 GB, $25 credit), Team is $169 per person per month from 3 people (48 shared agents, 256 GB, $40 credit per person) and Scale is $199 per person per month from 5 people (160 shared agents, 500 GB, $50 credit per person). Billing is cancel-any-time from the billing portal, and annual payment saves roughly 17%. Air-gapped and Enterprise terms are negotiated directly. Supported billing and checkout platforms include: not listed.

### What are the best Kosa8 alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Kosa8 are: 1. Coder (149.42K visits/mo); 2. Agent 37 (180.03K visits/mo); 3. boat (66.87K visits/mo); 4. Hopx (The Cloud for AI Agents) (2.46K visits/mo); 5. exe.dev (60.1K visits/mo).

### Which platforms and core AI capabilities does Kosa8 support?
Kosa8 is classified under AI Agent, AI Developer Tools, supports the following platforms: Website, and its core capability tags include: AI agent security, AI agent sandbox, Virtual machines, VM isolation, Secure infrastructure, Coding agents.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [Coder](https://openaitools.app/tool/coder) | 149,417 | Free Trial, Contact for Pricing, Free | [Compare](https://openaitools.app/compare/coder-vs-kosa8) |
| [Agent 37](https://openaitools.app/tool/agent-37) | 180,030 | Free Trial, Contact for Pricing | [Compare](https://openaitools.app/compare/agent-37-vs-kosa8) |
| [boat](https://openaitools.app/tool/boat) | 66,870 | Free Trial, Paid | [Compare](https://openaitools.app/compare/boat-vs-kosa8) |
| [Hopx (The Cloud for AI Agents)](https://openaitools.app/tool/the-cloud-for-ai-agents) | 2,456 | Free Trial, Paid | [Compare](https://openaitools.app/compare/kosa8-vs-the-cloud-for-ai-agents) |
| [exe.dev](https://openaitools.app/tool/exe-dev) | 60,103 | Freemium, Paid | [Compare](https://openaitools.app/compare/exe-dev-vs-kosa8) |
| [Rivet.dev](https://openaitools.app/tool/rivet-dev) | 21,359 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/kosa8-vs-rivet-dev) |
| [InsForge](https://openaitools.app/tool/insforge) | 60,257 | Freemium, Contact for Pricing, Free | [Compare](https://openaitools.app/compare/insforge-vs-kosa8) |
| [BLACKBOX.AI](https://openaitools.app/tool/blackbox-ai-1) | 622,975 | Free Trial, Paid | [Compare](https://openaitools.app/compare/blackbox-ai-1-vs-kosa8) |
| [AgentSphere](https://openaitools.app/tool/agentsphere) | 0 | Contact for Pricing | [Compare](https://openaitools.app/compare/agentsphere-vs-kosa8) |
| [Composio](https://openaitools.app/tool/composio) | 2,782,603 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/composio-vs-kosa8) |
| [OpenShip](https://openaitools.app/tool/openship) | 23,815 | Freemium, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/kosa8-vs-openship) |
| [Dedalus Labs](https://openaitools.app/tool/dedalus-labs) | 16,043 | Free Trial, Paid | [Compare](https://openaitools.app/compare/dedalus-labs-vs-kosa8) |

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Source: https://openaitools.app/tool/kosa8