GymMaster

Build on Gym Master

The open platform for partners and AI assistants: REST API, OAuth2, MCP, Webhooks, Node · Python SDK and CLI — everything to connect Gym Master to your product.

I'm a Gym Master customer

Connect your system to Gym Master — create an API key in the app, pick permissions, go. Working for a customer? Start here too.

Start →

I build apps for Gym Master gyms

Sign up yourself, get a Developer workspace with sample data, create an app with an App ID + App Secret instantly, test and Publish yourself.

Start as a partner →

I use AI (MCP)

Plug any MCP-capable assistant (ChatGPT, Claude, Copilot, Cursor, Gemini, Grok…) into Gym Master — just a URL.

Connect AI →

Build an app for Gym Master gyms — 4 steps, all self-service

  1. 1

    Sign up as a partner — you get a Developer workspace with sample data that never expires.

  2. 2

    Create an app in My apps, pick Use cases, get the App ID + App Secret instantly.

  3. 3

    Test in the Test Console or API Explorer: Generate Access Token, call the API, read API Logs.

  4. 4

    Press Publish — the Publish checklist runs automatically; all green and any customer can install.

A Developer workspace sends nothing out (customer messages, SMS/ZNS/email, e-invoices, payments, calls).

Watch the whole flow in under 5 minutes

Sign up → create an app → call the API → Publish, with voice-over.Vietnamese audio · 4:38

Jump to a step

Done watching? Become a partner →

Start coding — call the API and AI tools from code or the terminal

Node · Python SDK

Typed clients for every REST route with token refresh, pagination and retries. Generated nightly from the live OpenAPI document.

npm install @nextxai/sdk
SDK docs →GitHub ↗

gymmaster CLI

Sign in via web or QR, ask the AI assistant (gymmaster ai -p), call the API, forward webhooks to your machine, run in CI.

brew install nextx-organization/nextx/gymmaster
CLI docs →v0.3.5 ↗

OAuth2

Apps get an Access token with the App ID + App Secret and call the API within what the customer approved at install.

Scopes per endpoint

Each API endpoint needs a scope; customers grant scopes when installing the app.

MCP

Plug straight into ChatGPT, Claude, Copilot, Cursor, Gemini, Grok… — just a URL and a Gym Master sign-in.

Webhooks

Receive member, check-in, contract, booking and chat events… signed, retried on failure.