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Fitness Intelligence
for Everyone

Expert AI coaching for training, nutrition, recovery, and mobility—powered by real sports science. Connect your fitness devices and get personalized guidance tailored to your goals.

Strava Garmin Fitbit WHOOP Coros Terra
AI-Powered Expertise

Specialized AI Coaches

Expert guidance across every aspect of your fitness journey. Each coach brings deep domain knowledge powered by real sports science.

Training

Race-specific coaching from 5K to marathon. Pacing strategies and periodization.

5K-Marathon Pacing

Nutrition

Pre/post-workout fueling and race-day nutrition. Meal timing and hydration.

Meal Timing Race Day

Recovery

Sleep optimization and HRV interpretation. Know when to push and when to rest.

Sleep HRV

Mobility

Stretching routines, yoga for athletes, and injury prevention. Desk athlete solutions.

Stretching Yoga

Analysis

Pattern detection and training load trends. Performance insights from your data.

Patterns Load

Coach Library & Marketplace

Browse expert coaches or create your own. Share and discover community coaches.

Get Early Access

Complete Fitness Picture

Real insights across four pillars of wellness using proven sports science.

Training

Know when to push and when to rest.

  • Training load scores
  • Fitness vs fatigue
  • Race predictions

Nutrition

Fuel your training properly.

  • Calorie targets
  • Meal timing
  • Recipe library

Recovery

Optimize rest and readiness.

  • Sleep quality
  • HRV readiness
  • Rest day guidance

Mobility

Move better, prevent injury.

  • Stretching routines
  • Yoga for athletes
  • Desk athlete fixes

Real Sports Science, Not Guesswork

Pierre uses the same methods trusted by elite coaches and sports scientists around the world.

Training Load

Measures how hard each workout is based on intensity and duration so you know exactly how much stress you're putting on your body.

Fitness vs Fatigue

Tracks your long-term fitness gains against short-term fatigue to find the sweet spot for peak performance on race day.

Race Predictions

Get accurate predictions for 5K, 10K, half marathon, and marathon distances based on your actual training data.

Recipe Management

Training-Aware Meal Planning

Build your personal recipe collection with meals optimized for your training schedule. Pierre validates nutrition using USDA data and adjusts macros based on whether you're fueling up, recovering, or resting.

Pre-training meals — High-carb focus (55%) for energy
Post-training meals — High-protein (30%) for recovery
Rest day meals — Balanced macros with strategic carb reduction
Recipe validation based on ISSN guidelines
Pre-Training 55% carbs
Post-Training 30% protein
Rest Day 35% fat
Macros adjust automatically based on your TDEE and meal timing

Your Data, Your Control

Pierre respects your privacy. Your fitness data stays secure and under your control.

Encrypted & Secure

Your data is encrypted end-to-end and never shared with third parties.

Code on GitHub

Review the source code, run it yourself, or contribute to development.

You're in Control

Connect and disconnect your devices anytime. Delete your data whenever you want.

For Developers

Build with Pierre

Integrate fitness intelligence into your applications using industry-standard protocols.

MCP Protocol

Model Context Protocol

Connect Pierre to Claude, ChatGPT, or any MCP-compatible AI assistant. Your AI gains access to 34 fitness tools.

"mcpServers": {
  "pierre": {
    "url": "https://api.pierre.fitness/mcp"
  }
}

A2A Protocol

Agent-to-Agent Communication

Enable your AI agents to communicate with Pierre using Google's A2A protocol for seamless multi-agent workflows.

GET /.well-known/agent.json
POST /a2a/tasks
WS /a2a/stream
Coming Soon

Meet Your Coaching Team

Pierre is launching soon with expert AI coaches ready to guide your training, nutrition, recovery, and mobility. Be the first to get access and help shape the future of AI fitness coaching.

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Early Access

Be among the first to try Pierre before public launch.

Shape the Product

Your feedback will directly influence features and direction.

Exclusive Updates

Get development updates and behind-the-scenes insights.