The physics of fitness,
as an SDK.
Quantify athletic performance inside your own application. Send flat workout data — reps, load, time — and get back real mechanical work, power and work capacity. Don't just log workouts. Measure fitness.
“Fitness is… your work capacity across broad time and modal domains.”GREG GLASSMAN — FOUNDER, CROSSFIT
Six endpoints. One engine.
Integrate the biomechanical engine directly into your architecture to turn raw data into high-fidelity fitness metrics.
Workout Power
Quantifies true mechanical intensity across multi-modal movements. Applies the engine to flat data — reps, weight, time — normalising disparate modalities into a universal energy currency.
RepMax
The high-force, short-duration ceiling. Analyses isolated maximal-effort sets to identify the high-intensity anchor of the power-duration profile.
Kinetic Work Capacity
Overall fitness across broad time and modal domains. Aggregates trailing telemetry into a unified snapshot of absolute mechanical power — a baseline for longitudinal tracking.
Allometric Power Quotient
True mass-normalised capability. Allometric scaling converts raw mechanical output into a dimensionless scalar, enabling equitable cohort comparison across all body types.
Power Curve
The full spectrum of physical capacity. Synthesises varied workouts to map power decay and fatigue resistance, from one-second bursts to endurance efforts.
Pythia
Predictive time forecasting. Intersects the demands of a future workout with the athlete's established curve to calculate precise completion times.
Move the finish time. Watch capacity recalculate.
Pay only for the calculations you run.
Enterprise
For high-volume platforms, military and first responders.
SLA guarantees
Dedicated performance SLAs for enterprise backends.
Priority support
Direct Slack/Teams channel with core bioenergetic engineers.