GymMaster API
GymMaster publishes REST/JSON APIs for members and bookings (Member Portal), door hardware (Gatekeeper), and reporting, plus webhooks and Zapier. Keys are self-issued per club from Settings, so multi-club integrations mean collecting a key from every site. Rate limits are unpublished.
Frequently asked questions
GymMaster scores C on the API Report Card. GymMaster publishes REST/JSON APIs for members and bookings (Member Portal), door hardware (Gatekeeper), and reporting, plus webhooks and Zapier. Keys are self-issued per club from Settings, so multi-club integrations mean collecting a key from every site. Rate limits are unpublished.
GymMaster has an official API, but teams routinely hit its limits: gated access, partial coverage, or paid tiers. Most end up supplementing it with exports or an unofficial API layer like Supergood.
GymMaster is an all-in-one, cloud-based gym and health club management platform built by Treshna Enterprises (Christchurch, New Zealand).
misc (Gym & Health Club Management Software). Front-desk staff use GymMaster to sign up members, take payments, sell merchandise/supplements through POS, check members in (via barcode, RFID fob, mobile app, or facial recognition), book classes and personal training sessions, and run end-of-day reports.
GymMaster markets itself as serving 'thousands of clubs' across 110+ countries with 180,000+ active weekly users and 3+ million memberships under management.
For a gym operator, GymMaster holds the full operating record: member identities and contact details, membership plan and contract terms, billing and payment history (including ACH/credit card tokens via integrated billing partners), class and PT booking history, attendance/check-in logs (including door-access events from Gatekeeper hardware), POS transactions and inventory, marketing campaign engagement, staff timesheets and payroll inputs, and KPI/retention metrics.
GymMaster traces back to Treshna Enterprises, founded in 1997 in Christchurch, New Zealand by Andrew Hill and Andre Renauld.
API keys are issued per club through Settings → Integrations, which means each customer must turn on and share the key with the integrator, there is no aggregator/partner credential flow, making fan-out across many clubs operationally heavy. Public documentation does not state rate limits or quota tiers, leaving integrators to discover them empirically. Full sourced list under Sources below.
Common alternatives include Mindbody (Playlist/Xplor), Xplor Gym, Glofox (ABC Fitness), ClubReady, PerfectGym, Vagaro. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.
Yes. Supergood maintains an unofficial GymMaster API and MCP server so AI agents and internal tools can read and write GymMaster data. See the GymMaster integration docs at supergood.ai/docs/gymmaster-api.