Documentation
TrueZone SDK & API
Integrate physiological analytics into any platform. Send heart rate and speed data, get a complete fitness and metabolic profile back. REST API or client-side WASM — same SDK, same outputs.
Quick Start
Send your first request and get E, V, P back in 5 minutes.
Input Format
Settings schema, data format, and all configuration options.
Derived Metrics
Energy, recovery, drift, zones, MFI, and 60+ derived outputs.
Code Examples
curl, Python, and JavaScript examples for common operations.
Getting Started
API Reference
Input Format
Settings schema, data format, and all configuration options.
Output Format
Complete result schema — core parameters, confidence, prediction, and memory.
Derived Metrics
Full stats output — energy, recovery, drift, zones, MFI, and 60+ derived values.
Bayesian Memory
How multi-session parameter learning works and memory format.
Guides
Understanding E, Vmax, P
What the three core parameters mean and how to interpret them.
Running
Race predictions, training paces, PrimeScore, and running-specific outputs.
Cycling
FTP%, LTHR, LTP duration, and power zones for cycling.
Team Sports
Sprint detection, player archetypes, PrimeScore, and squad analytics.
Metabolic Health
MFI, RZI, metabolic zones, and energy tracking for health applications.