Week 12: 1,000 Strong

The community passed a thousand: 1,039 members, up from 977. It started with 20 of us in June. Thank you to everyone who shows up, builds, and shares what they learn.

What we built last week

• Connecting Claude to the WHOOP API: the full walkthrough, plus customizing your training and recovery data once it is in
• Wearable APIs, tier ranked: which platforms let you have your data, and which make you fight for it
• Navier-Stokes breakdown: I got ahead of myself on this one. Engineers who use these models pointed out that the foundations were already in use in sport, so the real story is how fast the models are improving
• Apple Health and Apple Watch update: what changed and what it means for your training data
• 10 ways to 10x your training with AI: MCPs over APIs, benchmarking your fitness the day you connect, building an LLM wiki vault, and two-way communication with your agent
• Book review: Cameron Hanes' Undeniable, which I recommend

Coming this week

• Hevy API integration guide: your lifting data next to everything else, so your AI can see what you lifted
• Balancing lifting with endurance training
• The mindset series: last week's poll went 8 for 8 in favor

Community notes

• Growth: 1,039 members.
• Most Miles in a Month: Apollo 480, Poseidon 470. Poseidon closed a 74-point gap to 10 in seven days, and the individual leader sits at 110 with second place at 106.
• Athlete AI Labs trailer: members picked the cut, Mountain over Black 15 to 9.
• Pushed a week: the Hevy integration and the lifting and endurance piece. A nonstop news cycle took the week.
• Done-for-you builds: a few members asked whether I would build their Athlete OS for them. This week's poll measures the interest.

Kevin