Cairn ships complete internal apps — CRM, team chat, help desk — production-ready and yours from day one. Every Trail is AI-native: drive it through a native MCP server and CLI, and let your coding agents reshape the code to fit. Someone already built the hard 80% — you own where it goes next.
You can rent software you’ll never own, or build it from an empty repo. Cairn is the third path: a production-ready starting point — documented so your AI agents extend it the right way — that’s yours to keep.
The real win isn’t just owning it — it’s not starting from scratch. Every Trail hands you a production-ready starting point and ships with AI-first documentation that teaches your coding agents the patterns and practices to follow — so the changes you prompt land the way they should.
The day you buy a Trail, its complete source lands in your GitHub organization — production-ready and yours to keep. Every improvement we ship after that arrives as a pull request to your repo: new features, security patches, fixes — reviewed and merged on your schedule.
You buy a Trail once and its complete source lands in your GitHub org at a production-ready base camp, deployed to your cloud. You own this exact version outright — forever, even if you never pay another cent.
Every release comes to you as a pull request — new features, security patches, fixes. You review, test, and merge on your schedule. Nothing changes until you say so.
Prompt your coding agent, review the diff, merge. Each Trail is clean, documented, AI-first code — built so your agents can reshape it until it fits your company exactly.
cairn-trailbot wants to merge into main
Every Trail is AI-native two ways. A native MCP server and a first-class CLI let your team and its agents operate the app directly. And the code underneath is built for coding agents to extend — no scraping a UI, no reverse-engineering.
acme@base-camp ~ % cairn crm deals list --stage negotiation 3 deals · $84,200 weighted acme@base-camp ~ % cairn crm agent "flag deals stale >14d" ✓ rule created · applied to 12 deals # MCP server cairn-crm ● connected tools: search_deals, create_deal, move_stage …claude ›"move the Globex deal to won" ✓ done
Every Trail ships a native Model Context Protocol server. Point Claude or any agent at it and it reads the app's data and takes real actions — within your permissions, no glue code.
A first-class command line for every Trail. Anything you can do in the UI you can script, pipe, or wire into CI — for your team and for the agents working on its behalf.
The source is structured and documented for AI. Prompt your coding agent to add a field, a workflow, or a whole module — then review the diff and merge.
Each Cairn product is a complete, AI-native application you own outright — drive it through a native MCP server and CLI, and reshape its clean, documented code with your own coding agents.
A Trail won’t out-feature a 15-year-old incumbent on day one — and honestly? We’re fine with that. You get the well-worn 80% for about the price of team lunch, yours to keep forever. The missing 20% is a prompt away: point your coding agent at the gap and build precisely what your team needs — no roadmap begging, no “contact sales.”
A customizable CRM for growing teams — pipelines, contacts, and reporting you control.
Production-ready team chat. Channels, threads, search — running in your own cloud.
Customer support software you own, from shared inbox to SLAs and a customer portal.
SSO, SCIM, and access control — the auth layer every internal tool eventually needs.
An internal knowledge base with versioned docs your team actually keeps current.
Self-hosted product analytics — your events, your warehouse, your dashboards.
Every Trail ships with full source in your own GitHub repository, a native MCP server, a first-class CLI, and three months of trail markers. One flat price for all of it — see pricing.
No seats, no tiers, no usage meters. One flat price to own a Trail outright — then a few optional ways to keep it current and cared for.
Own the app outright — forever. No subscription, no seats, no lock-in.
Join the ExpeditionWhen your first three months are up, subscribe to keep the trail markers coming — new features, security patches, and fixes, as pull requests to your repo. Cancel anytime; the version you own keeps working.
We deploy and operate your Trails inside your own cloud account — you keep the data, the keys, and the bill. Fully managed hosting, without giving up ownership.
Rolling out more than one Trail? Volume discounts apply past the first — let’s talk.
You’re paying for continued guidance — never for permission to keep using what you bought.
Software should belong to the people who depend on it.
For decades, companies bought software. Today, they rent it. Critical systems live in someone else’s cloud, where pricing changes, features disappear, and roadmaps shift without you.
We think there’s a better way. Ownership shouldn’t mean starting from scratch. Every Cairn product is built from the lessons of teams who already solved these problems — a foundation you make your own.
Buy software again.
— and keep it, even if you stop paying.The honest answers to what teams ask us first. Still wondering about something? Join the expedition and we’ll talk it through.
The complete source, in your own GitHub org — production-ready and yours to deploy to your own cloud. No seats, no usage meters. The release you buy is yours to keep and run forever, and using it never requires a subscription.
The version you own keeps working — forever. A subscription buys continued trail markers, never permission to run what you already bought. Cancel anytime and nothing switches off.
As many as you need. Spin up all the instances you want for high availability, redundancy, and scale — that's yours to architect. The license covers use within your own company; if you'd like to deploy Trails to your clients, reach out and let's talk partnerships.
Great question. Today we're source-available to purchasers while we work through whether true open source can work for us. We'd love a broader community around Cairn — we're just trying to get there without leaning on “on your honor” licenses. Stay tuned.
Our word for an update — a new feature, security patch, or fix — delivered as a pull request straight to your repo. Your first three months of markers are included; after that they're optional, at $25 / month.
No. A Trail is standard, production-ready code running in your own cloud — no phone-home, no license server, no kill switch. Cairn could disappear tomorrow and your software would keep working.
Every Trail ships with a native MCP server and a first-class CLI, so your own agents and tools can drive it directly — not bolted on after the fact, but built into the foundation you own.
Soon. Bring Your Own Cloud lets us deploy and operate your Trails inside your own account — you keep the data, the keys, and the bill. Fully managed hosting, without giving up ownership.
Cairn opens to a small group of founding teams first. Join the expedition and we’ll send your first trail marker the day we open — plus a vote on which Trails we cut next.