Kaizern Contact

Most AI knows everything and does nothing. Ours knows your business and works.

15 years of shipping production software. Now building company brains, sovereign government copilots, and the rest of what AI was supposed to be.

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15 years shipping 50+ projects 12 open-source repos San Francisco + Dubai + Tallinn

Whether you're a ministry exploring sovereign AI, a law firm replacing manual drafting, or a SaaS team that's outgrown off-the-shelf — we build, ship, and maintain the software you can't get from a SaaS subscription.

Track record

Kaizern OÜ since 2012 · Open-source since 2014 · Claude Skill builder

What's possible right now

Useful AI, not AI for the sake of AI.

Most businesses know AI changes things. Few know what to actually build. Here are nine systems we ship today.

Company brain

Stop asking five tools the same question and getting five answers. We build one synthesized, cited model of your business — every agent and every employee asks once, gets the right answer.

For: companies where the CRM, Slack, Drive, and the senior PM each tell you something different.

Answer engine optimization

Buyers now ask ChatGPT, Perplexity, and Google AI who to trust. Do you show up — and is the answer right? We measure how answer engines describe you, fix the source material they cite, and track the drift monthly.

For: B2B companies, agencies, and SaaS teams where AI answers are becoming the buyer's shortlist.

Sovereign government copilot

AI you can actually deploy when your data can't leave the country. Pre-trained on publicly available Estonian content; fine-tuned on yours under NDA. Within 48 hours your team is drafting in their official voice — without a single byte leaving your network.

For: ministries and municipalities where legal blocks every cloud AI tool.

Document drafter in your voice

Senior-partner drafts in 90 seconds. Trained on your last 30 contracts and your house style. Cuts drafting time 70–90% — junior associates stop writing boilerplate, partners stop rewriting it.

For: law firms, consultancies, family offices.

Weekly autopilot reports

An agency sending 10 weekly reports saves 60–80 hours a month. Build it once, run it forever. Pulled from your tools, drafted in your voice, ready to send by Friday morning.

For: ops managers, account managers, consultants.

AI phone agents

Your agent gets a real phone number. It answers, calls, and texts — and every call leaves a recording, a transcript, and an audit trail.

For: agent builders, SaaS support teams, on-call engineering, local services, and personal assistant apps.

Multi-agent operations team

Two people. Five agents. The output of fifteen. Built for teams that need enterprise output without enterprise hiring.

For: 1–10 person companies scaling without headcount.

Internal knowledge copilot

"Where did we say that?" — answered in 3 seconds, with the source link. Across your contracts, tickets, wiki, and Slack. Cuts internal search time 80%.

For: support, legal, finance, and HR teams that drown in "have we answered this before?".

Custom B2B software

Working software in 2–4 weeks, not 2–4 quarters. When SaaS doesn't fit and the agency quoted 6 months and $200K, we build the right tool for half the price, in a quarter of the time.

For: companies that have outgrown off-the-shelf.

Have a different workflow to kill?

Tell us. We reply in 24 hours with a yes, no, or here's how.

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What we're building · Product

Openfonex — real phone numbers for AI agents.

Most agents are trapped in chat. Openfonex puts them on a real phone line: calls, SMS, recordings, transcripts, and MCP tools your agent drives directly — without your team becoming a telecom operator.

Agent builders

Add phone numbers, calls, SMS, and MCP tools — provider onboarding and number registration handled for you.

Support and operations

Answer inbound calls, capture transcripts, escalate urgent cases, and keep every call tied to the customer record.

On-call engineering

Incidents become phone calls, not missed Slack messages. Route, record, summarize, and escalate when humans need to wake up.

Local services and real estate

Handle after-hours inquiries, qualify requests, book appointments, and send the summary to the right person.

Personal assistant apps

Give assistants a compliant way to make one-to-one calls for reservations, follow-ups, scheduling, and errands.

Regulated deployments

Country requirements, end-user registration, recording controls, audit logs, and operator review built into the phone layer.

Real numbers, not a voice widget · Voice and SMS on one agent identity · Recordings, transcripts, and summaries by default · Agent-readable API, MCP, and /llms.txt · Managed cloud, self-hosted gateway, or BYO provider · Compliance gates before outbound calls or SMS

Recent work in the open

We ship in public.

A sample of recent open-source projects — agent tooling, government infrastructure, Claude skills.

View all on GitHub →

How we work

Three steps. Fixed scope. Shipped.

01

Discover

A free 30-minute call. We listen, ask the questions that matter, and tell you whether the project is worth doing.

02

Prototype

One to two weeks. Fixed scope, fixed price. You get working software you can test with real users — not slides.

03

Deploy and maintain

On your infrastructure or ours. We document everything, train your team, and stay on retainer if you want us to.

Tell us what you're building.

A reply within 24 hours, every time. No sales calls, no funnels — just a real engineer reading your message.