"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:

Your WHOOP data in the assistant, read-only: recovery, sleep, strain, workouts, cycles and body meas

Analyse cycling-event GPX routes and build bounded, practical ride-fuelling carry plans.

Nutrition tracking by Dieta.ai. Read your food log with macros (calories, protein, carbs, fat, fiber

Live GPS sports tracking + per-sport analysis of GPX/IGC/FIT files: thermals, wind, phases, laps

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

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

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.

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

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

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

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.

Your AI writes training plans that arrive as structured workouts on iPhone and Apple Watch.

Free nutrition and fitness tools for AI assistants. It helps you track calories, macros, goals, workouts, body measurements, and barcode-scanned foods, then lets your AI use that real context to answer questions like what you ate today, how much protein you are missing, what dinner fits your remaining calories, or how your weight is changing.

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

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.

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.