Build my plan
“Create a three-day full-body workout for me in Simple Muscle. Ask me about my goals, experience, and available equipment first.”
Available now via MCP
Give your AI gym access
Manually add one secure connection URL to ChatGPT, Claude, or another MCP assistant. Then sign in and let it plan, edit, and analyze your training.
1
Copy the Simple Muscle MCP URL
Use this same URL in any supported AI assistant.
Connection link
https://api.simplemuscle.ai/mcp2Add it to your AI assistant
ChatGPT
- 1On ChatGPT web, open Settings → Security and login, then turn on Developer mode.
- 2Open ChatGPT Plugins, select the plus button, and add Simple Muscle with the MCP URL above.
- 3Finish the Simple Muscle sign-in prompt, then enable the connection in a new chat.
Developer mode and custom plugin availability can depend on your ChatGPT plan and workspace settings. Setup is completed on the web.
View the ChatGPT setup guideClaude
- 1Open Customize → Connectors in Claude or Claude Desktop.
- 2Select + → Add custom connector, name it Simple Muscle, and paste the MCP URL above.
- 3Choose Add, then Connect and sign in with your Simple Muscle account.
Remote custom connectors are currently in beta across Claude plans; Free users are limited to one. Team and Enterprise setup may require an owner.
View the Claude setup guideComing soon
Simple Muscle in the app directories
One-click ChatGPT and Claude directory apps are on the way. The manual MCP connection above is available now and uses the same Simple Muscle tools.
Using another assistant?
Add the URL above as a custom remote MCP server. Menu names differ by assistant, but no API key or separate Simple Muscle credential is required; the connection opens the normal sign-in flow.
Personal account information and workout data are available only through connections you authorize.
Try it in your next chat
Start with one of these
Copy and paste any prompt into your AI system to get started.
Find exercises
“Show me exercises I can do for my abs, then add my favorites to a new Simple Muscle workout.”
Learn an exercise
“Show me how to do a barbell Romanian deadlift with proper form. Explain the setup, movement, and common mistakes.”
Questions
Before you connect
The essentials about assistants, access, and cost. Each provider guide covers its own setup menus.
Which AI assistants work with Simple Muscle?
Simple Muscle supports ChatGPT, Claude, OpenClaw, and other assistants that can connect through the open Model Context Protocol (MCP).
How do I connect before the directory app is published?
Copy the Simple Muscle MCP URL and add it as a custom app or connector in your AI assistant's settings. Sign in with your Simple Muscle account when prompted. One-click ChatGPT and Claude directory apps are coming soon.
Do I need a paid ChatGPT or Claude plan?
Provider plan and workspace restrictions can affect connector availability. Check your provider account before setup. The Simple Muscle web dashboard and MCP connection do not require the iOS subscription.
What workout data can my AI access?
After you approve a connection, your assistant can request structured plans, schedules, exercises, targets, notes, your weight-unit preference, logged sets, completed sessions, and per-exercise progress. You can disconnect it to stop future access.
Can the AI edit workouts I already completed?
No. Completed workout history is read-only to connected assistants. They can analyze that record, but they cannot rewrite or delete what happened.
Can I use the tracker and MCP connection for free?
Core local iPhone tracking works free and offline, and the dashboard and MCP connection do not require the iOS subscription. Continued cloud backup and synchronization after the seven-day trial is paid.
Don’t have the iOS app yet?
Download Simple Muscle, connect your AI, and every workout stays in sync.
Download on the App Store