"Resources or services available for free" matching MCP connectors:

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

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.

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

Barbell strength training tools for AI assistants. Warmup, plate loading, and LP.

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

Pace is a remote MCP server that exposes wearable and fitness data to Claude via the Model Context Protocol. It connects to Garmin, Oura, Whoop, Polar, Fitbit and 20+ devices and provides 15 tools for querying sleep, activity, recovery, and training data. Hosted on Google Cloud Run, OAuth 2.1 authentication, Streamable HTTP transport. Instructions: First you need to create an account at: https://pacetraining.co and connect your wearables. After that you can connect the remote Server via Custom Connector in Claude and OAuth 2.1 Flow startet.

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

Effortless calorie tracking for people who train — just tell your AI what you ate.

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

AI soigneur for cyclists: Strava ride to an Ien-Vitse-validated nutrition plan + orderable box.

Garmin data in Claude: 135 tools — activities, sleep, HRV, training, workouts. Free, open source.

WHOOP recovery, strain, sleep and workouts in Claude via official WHOOP OAuth. Free, open source.

Private Apple Health metrics and workout detail for ChatGPT, Claude, and any MCP client.

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.

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

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

Body composition for AI: BMI, body fat, FFMI, waist-to-height, plus saved measurement trends.

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.

Hosted Strava MCP server that gives each user a personal URL to paste into Claude or ChatGPT. Ask about your training in plain English — pace, heart rate, overtraining, trends. More info and sign-up at https://askyourdata.health