Your training.
Your AI of choice.
Your training belongs in the assistant that already knows you. One secure connection puts your Intervals.icu history into Claude, ChatGPT, or Grok — or any other assistant that supports remote MCP — and into whatever you switch to next. Each links only the account you authorize. Every new Free account starts with 30 days of full read and write access; Pro keeps it unlimited.
Underneath, it is a hosted Intervals.icu MCP server: one URL, OAuth sign-in, nothing to install or self-host.
Your workspace
Connect your training
IntervalSync is available to Intervals.icu athletes. Sign in once, then use your training in whichever assistant you prefer.
Sign in to Intervals.icu once. We create or open your IntervalSync account and connect your training automatically — no API key or separate password required.