Our product · Taper
Taper is an AI training coach for runners, cyclists, triathletes and strength athletes. It reads training data from the devices athletes already wear, writes and adapts their plans, and coaches them day to day. tapertraining.com
What we built
iOS, Watch & web
A native SwiftUI iPhone app with an Apple Watch app, widgets and subscriptions, plus a web app and marketing site.
Coaching agents
Agents for coach chat, plan writing, workout analysis, weekly reviews, daily briefs and onboarding, each scoped to its own job.
Evaluation
A test harness covering the agents across the product: frozen real-world cases, an automated critic, adversarial red-team tests and cost limits on every run.
Cost & performance
Prompt caching across the agent fleet, with a watchdog that checks the cache keeps working.
Integrations
Strava, Garmin (including sending workouts to the watch), COROS, Wahoo, Hammerhead, Intervals.icu, Oura and WHOOP, plus race-calendar data.
Agent-ready
Its own MCP server with OAuth, so athletes can connect Taper to their own AI assistant.
Operations
A serverless backend with scheduled workers for reviews, plan refreshes and re-engagement.