1,114,909 APIs · 140× Zapier · 100% AI-built

Thursday 5:12AM. 5:30 is full. Two drop-ins on the waitlist already have trial passes.

Mainframe runs your box off the whiteboard. Class fill, standby, on-ramps, retention, reviews, drop-in billing — on autopilot, on the tools you already use.

Start free →

This week, your box.

$27,800
collected this week
412
class check-ins
88%
class fill rate
4.9★
new reviews · 15
14
on-ramps converted

What it actually does.

When

A 5:30AM drops with 8 people on the waitlist

Mainframe reshuffles the list by consistency, texts the top three, and books whoever replies first. Nobody shows up to a locked door.

When

A member has missed 5 days

Mainframe nudges the coach, sends a check-in text, and offers to book them into the next coach-led session. Churn goes down.

When

A fundamentals grad just finished their on-ramp

Mainframe sends the membership offer, books their first member-level class, and tags them for the coach to greet by name.

Plugs into the stack you already run.

Mindbody
Acuity Scheduling
Stripe
Twilio
Google Calendar
Google Business Profile
Birdeye
Mailchimp

Stop running the front desk from the whiteboard. Start coaching.

Free to start. Built by AI on 1,114,909 APIs. Live in under 10 minutes.

Start free →