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AI fitness coach

An AI coach that knows your training and your food.

Heza turns Claude, ChatGPT or another MCP assistant into your fitness and nutrition coach. Say what you did: it logs it, plans your week and checks your progress.

Start free (early access)
  • Voice or text
  • Photos and barcodes
  • No extra AI fee
You say "Two eggs and toast for breakfast" to your AI assistant. It logs 2 eggs and a slice of toast, 253 kcal and 17 g protein, and the meal appears in Heza's Fuel screen.

What you can say

Talk to it like a coach who has seen your log.

It knows your targets, your last sessions and what your watch recorded.

Log food

  • "Chicken, rice and broccoli for lunch"
  • A photo of your plate or the nutrition label
  • "Same breakfast as yesterday"

Log training

  • "I did lat pulldown, 3 sets of 10 at 20 kg"
  • "Easy 6 km run this morning, felt good"
  • "I weigh 81.4 kg today"

Goals and strategy

  • "I want to run a half marathon under 1:55 in December"
  • "How am I doing against my goal?"
  • "What should I change in the next 4 weeks?"
  • "Set my calories and protein for losing fat"

Plan

  • "Plan 3 runs and 2 lifting days next week"
  • "Move Thursday's tempo to Friday"
  • "What weight should I use on bench today?"

Review

  • "Review my week"
  • "Did I eat enough protein this week?"
  • "Which muscles did I train least this month?"

Recovery and body

  • "Should I train hard today or take it easy?"
  • "How is my HRV trending?"
  • "My lower back hurts after deadlifts, 3/10"

Coach notes

Notes on every screen, with one next step.

Ask your AI to review your week. It leaves a short note on each screen: what is working, backed by your numbers.

Coach note from your AI in Fuel: Protein is short on most days. You averaged 118 g of protein against a 160 g target, and only hit it on 2 of the last 7 days. Suggestion: Add a Greek yogurt to your afternoon snack (+15 g).

Planning

Ask for a week. Get sessions you can follow.

Your AI plans runs and lifting around your goal, with exercises, sets, reps and suggested weights. Planned runs go to your Garmin or COROS as structured workouts.

A week planned by your AI: Monday Upper A, Tuesday easy 6 km run, Wednesday Lower A with squats 4 by 6 at 82.5 kg, Thursday 8 km tempo run, Friday rest, Saturday 14 km long run.

Set up once

Connect in about two minutes.

  1. Make your free Heza account

    Sign up at my.heza.app. Your connector link is in Settings.

  2. Add Heza to your AI

    In Claude: Settings, Connectors, Add custom connector, paste the link. In ChatGPT: turn on developer mode, then create a connector with the link and OAuth. Claude Code: one terminal command.

  3. Sign in and allow access

    Your AI asks you to sign in to Heza once. After that it works everywhere you use that AI, including your phone.

Privacy and cost

  • Only your data The connection belongs to your account. Your AI can read and change your data only, and you can disconnect it in Settings.
  • Your own AI plan What your AI can do with connectors depends on your AI app and plan.
  • Heza works without it Everything the AI does, you can also do in the app yourself. The AI is the fast way, not the only way.

FAQ

AI coach questions.

What is MCP?

MCP (Model Context Protocol) is an open standard that lets AI assistants use outside tools. Heza runs an MCP server, so after you allow it, your assistant can read and update your Heza data.

Which AI apps can I use?

Claude (web, desktop and phone), ChatGPT with developer mode turned on, Claude Code, and any other assistant that supports custom MCP connectors. What your AI app allows can depend on its plan.

Does Heza charge for the AI?

No. Heza does not add an AI fee. Your assistant runs on the AI plan you already have.

Can my AI see other people's data?

No. The connection is tied to your Heza account, so your assistant can only read and change your own data. You can disconnect it in Settings at any time.

Can it log a meal from a photo?

Yes. Send a photo of your plate or a package. If a barcode is visible, it reads the digits and looks the food up, then logs the exact label values for your portion. Otherwise it estimates from the picture.

More of what Heza does

Give your AI a coaching job.

Heza is in early access and free. Make an account in a minute, connect your watch and your AI when you are ready.

Start free (early access) I have an account

Free. No card. Works on iPhone, Android and desktop.