"A Minecraft server with a personal API key" matching MCP connectors:

Deterministic fitness calculators — TDEE, adaptive TDEE, body fat, 1RM, macros — with consensus.

List, fetch, create, edit (replace), delete and schedule structured workouts on Garmin Connect (runn

Wger MCP — wraps wger Workout Manager REST API (free, no auth for read)

Marathon physiology MCP server — 12 tools for race prediction, pacing strategy, fueling plans, running economy, caffeine protocols, heat acclimation, and Strava-connected training load. Citation-backed models from peer-reviewed exercise physiology literature.

Client, workout, body composition, retention and finance management for personal trainers.

Connect Claude to your Intervals.icu watch data for fitness, workout review, and plan writing.

Marathon fueling, pace, hydration, heat, carb-loading, and gel-comparison calculators.

Strava MCP tools for AI: athletes, activities, segments, clubs, routes. Powered by HAPI MCP server.

Garmin data in Claude & ChatGPT via the Garmin Health API. OAuth sign-in, no password sharing.

Run the Energy Leak Quiz, match biohacking gear, and build a longevity stack. Free, no API key.

63 tools for Apple Health, Fitbit, Oura & Health Connect data in Claude, ChatGPT, Grok & Mistral.

Create Hevy routines and analyze your training from chat. Unofficial; BYO Hevy PRO API key.

Remote MCP server for training, nutrition, wellness, and performance data with OAuth 2.0.

The first strength-training app Claude can write to — reads real workout history, writes planned workouts back. First-party, OAuth 2.1, free.

First strength app Claude can write to: plan training in chat, it lands in the app ready to log.

Connect ChatGPT or Claude to your Gym Plus account to log and review workouts with AI coaching.

Track, curate, and analyze data about your health, habits, and goals.

AI cycling coach — training plans and beginner guidance via the Etapa API.

Etapa is an AI cycling coach for beginners. The MCP exposes two tools: `generate_training_plan` (2-4 week plans powered by the Etapa API) and `cycling_beginner_guide` (advice on bikes, gear, safety). Free, no account.

Turn Claude or ChatGPT into a cycling coach that plans your week, grades it, and adapts. Free beta.