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 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.

Kosa8 — AI Tool Traffic (0/mo), Pricing, API & Alternatives

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About Kosa8

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.

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.

High-Impact Use Cases for Kosa8

Software engineering teams

Unattended coding agents

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.

Security operations and SOC analysts

Malware analysis and cyber ranges

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.

Regulated finance, health and government teams

Audit-ready agent governance

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.

AI product engineers

Isolated execution per end-user task

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.

Solo developers and small studios

Local agents on a personal machine

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.

Rank	AI Tool	Monthly Visits	MoM Growth	Direct traffic share	Pricing	Head-to-Head
●	Kosa8	0	0%	—	subscription	Current
1	Coder	149.42K	-12.8%	42% direct	Free Trial, Contact for Pricing, Free	vs Coder
2	Agent 37	180.03K	+24.2%	40% direct	Free Trial, Contact for Pricing	vs Agent 37
3	boat	66.87K	+520.8%	56% direct	Free Trial, Paid	vs boat
4	Hopx (The Cloud for AI Agents)	2.46K	-47.5%	39% direct	Free Trial, Paid	vs Hopx (The Cloud for AI Agents)
5	exe.dev	60.1K	-26.4%	68% direct	Freemium, Paid	vs exe.dev
6	Rivet.dev	21.36K	-44.3%	50% direct	Freemium, Contact for Pricing	vs Rivet.dev

Kosa8

Why Choose Kosa8

Watchouts & Trade-offs

Multi-Angle Perspectives

Traffic Acquisition Breakdown