Dev Launches Simple Muscle: Connecting ChatGPT to Workouts via MCP

haltakov · x · 2026-08-10

A developer has launched Simple Muscle, an iOS app that turns AI assistants into workout coaches. By using the MCP protocol, the app connects directly to AIs like ChatGPT or Claude, giving them access to structured training plans and history. This allows the AI to automatically adjust workouts based on progress without needing extra subscriptions or screenshots.

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