Everything your box needs. Open to everything you use.
BoxOS handles scheduling, members, billing and programming — and connects to your tools and your AI through an open API. Built in Europe, paid with Payrexx.
For the curious — here's what a booking looks like through the API:
Built open
Every booking, member and payment is reachable through the API — with SDKs, webhooks and an OpenAPI spec. You build on top of your box instead of fighting an export button.
Your AI, connected
Because everything is open, you connect BoxOS to the AI you already use — ChatGPT, Claude or your own agents. With MCP, just ask your box what you want to know.
European from day one
Payrexx payments, CHF & EUR, EU/Swiss data residency, German & English. Invoices, VAT and QR-bills the way European boxes actually work.
This is how BoxOS feels.
A calm, fast surface for the front desk — and an app your members actually like opening. No clutter, just what matters.
One system instead of five.
BoxOS isn't a thin layer on top of your tools — it is the stack. Everything a box needs to run a day, in one place.
Classes & capacity
Timetables, recurring sessions, waitlists and live capacity that never double-books.
Memberships & contracts
Plans, freezes, trials and drop-ins — with the contract logic European gyms need.
Billing & dunning
Recurring billing through Payrexx, automatic retries, invoices and VAT.
Programming & WODs
Build cycles, publish the day's workout, track results and benchmarks.
Leaderboards & PRs
Scores, personal records and rankings that keep members coming back.
Check-in & kiosk
Self-serve check-in, no-show tracking and a kiosk mode for the door.
Rosters & coaching
Who's in tonight, attendance history and notes — on the coach's phone.
Retention & insight
MRR, attendance and at-risk members surfaced before they quietly lapse.
Ask your box. Through the AI you already use.
Through MCP, your AI talks directly to BoxOS — it doesn't just answer, it acts. Two examples:
| Petra Hofer | 0 visits / 21T | high |
| Daniel Vogel | 1 visit / 30T | high |
| Carmen Meier | 2 visits / 30T | watch |
| Stefan Brunner | 3 visits / 30T | watch |
No built-in bot you're locked into — an open MCP server you point at the AI you prefer.
Payments that speak your gym's language.
Most box software is US software with a euro sign taped on. BoxOS starts from the European gym.
Payrexx, natively
TWINT, cards, direct debit and the wallets your members already use — settled in CHF or EUR.
Invoices, VAT & QR-bill
Compliant invoices and Swiss QR-bills generated automatically — no bolt-on accounting tool.
EU / CH data residency
Your members' data stays in Europe, under GDPR — not shipped across the Atlantic.
German & English
Member-facing in their language from day one, with more European locales to follow.
Payrexx handles the regulated payment rails; BoxOS handles the box. Multi-currency, multi-gym, one dashboard.
Run your box on something built this decade.
We're onboarding a handful of boxes through the alpha now. Leave your email and we'll bring you in — owners and developers both.