Ask
Ask the way you'd text a colleague.
Tag a client with @ and ask in plain language. The answer comes back cited and ready to forward.
Grounded answers
Answers use only passages retrieved from the curated library, never the open internet.
Private beta
Agentic platform for fitness coaches.
CoachKit reads your client's profile, does calculations based on training history and check-ins, then answers from over 1,000 analysed research papers. Every claim is cited.
One email to me, a login link the same day. No form.
@Marcus R.
He's 90 kg and cutting. Is 2.2 g/kg of protein enough, or should I push him higher?
Used Marcus R.'s profile, nutrition plan and 6 check-ins
For Marcus, 2.2 g/kg (about 200 g a day, which matches his current plan) sits at the top of the well-supported range. Gains in lean mass tend to plateau around 1.6 g/kg, with 2.2 g/kg as a sensible upper bound 1. In lean lifters on a deficit, higher intakes have been suggested 2, but at his current rate of loss there is little reason to push him further.
His last two check-ins mention evening hunger, so moving more of the target into dinner is a practical way to keep him on plan.
Sources2
1
Protein supplementation and resistance training-induced gains in muscle mass and strength: a meta-analysisMorton et al. · Br J Sports Med · 2018
2
Dietary protein during caloric restriction in resistance-trained lean athletesHelms et al. · Int J Sport Nutr Exerc Metab · 2014
Platform
One library that knows your clients.
Four parts of the app, all live today. Each one feeds the answers you send.
Clients
Everyone you coach, in one place.
Profiles, goals, check-ins and plans. CoachKit reads them before it answers.
Library
See exactly what it has read.
The corpus is open to you. Search the 1,000+ analysed papers every answer draws from.
Digest
A Monday note on what changed.
What was added to the library, which answers changed, and the gaps it can't cover yet.
Trust
Safe to forward, because it shows its work.
Your reputation goes out with every answer. These are the rules CoachKit follows so you can stand behind it.
Numbered citations
Every claim points to its paper, so the citation is already in place when you forward it.
Honest refusals
When the library has no coverage, CoachKit says so instead of inventing an answer.
A living library
New research is added every Monday, and the Digest tells you which answers changed.
Your data
Your clients' details stay in your workspace.
Stored in the EU
All data is stored in the EU. CoachKit is GDPR ready; I don't claim certifications I don't hold.
Never used to train a model
Client profiles, check-ins and questions are never used for training and never leave your workspace.
Export anything
Your clients, notes and answers can leave with you whenever you want.
Delete means delete
Remove a client or your account and the data is gone, not archived.
Try it
Pick a client question. Read the answer.
These use the real answer format and citation behaviour, including a question the library can't answer.
CAsk
@Marcus R.
He's 90 kg and cutting. Is 2.2 g/kg of protein enough, or should I push him higher?
Used Marcus R.'s profile, nutrition plan and 6 check-ins
For Marcus, 2.2 g/kg (about 200 g a day, which matches his current plan) sits at the top of the well-supported range. Gains in lean mass tend to plateau around 1.6 g/kg, with 2.2 g/kg as a sensible upper bound1. In lean lifters on a deficit, higher intakes have been suggested2, but at his current rate of loss there is little reason to push him further.
His last two check-ins mention evening hunger, so moving more of the target into dinner is a practical way to keep him on plan.
Sources2
1
Protein supplementation and resistance training-induced gains in muscle mass and strength: a meta-analysisMorton et al. · Br J Sports Med · 2018
2
Dietary protein during caloric restriction in resistance-trained lean athletesHelms et al. · Int J Sport Nutr Exerc Metab · 2014
@Priya S.
She takes every set to failure, three sessions a week. Is that holding her back?
Used Priya S.'s profile, training plan and 4 check-ins
Probably not helping. When volume is matched, training to failure and stopping short of it produce similar gains in strength and muscle size1. Failure on every set adds fatigue without a clear extra benefit.
Her check-ins mention sore knees after squat days, so stopping one to three reps short on the big lifts is a reasonable change. She can keep failure for the last set of isolation work if she enjoys it.
Sources1
1
Effects of resistance training performed to repetition failure or non-failure on muscular strength and hypertrophy: a systematic review and meta-analysisGrgic et al. · J Sport Health Sci · 2022
@Dan W.
He's on blood pressure medication. Is the proprietary blend in his new pre-workout safe for him?
Used Dan W.'s profile and 2 check-ins
I can't answer this from the library. It doesn't cover that product's blend, and it doesn't cover interactions with blood pressure medication.
This one is for Dan's GP or pharmacist. Until he's checked, it's reasonable to suggest he holds off on the new pre-workout.
Not in the library
No sources cover this question, so there is nothing to cite. It's logged as a known gap in the next Digest.
Getting started
From one email to your whole roster.
Day 1
Ask your first question
Email me and I'll send a login link the same day. Add one client and ask the question that's sitting in your messages.
Week 1
Bring in your roster
Add profiles, goals and check-in notes. Answers start fitting each client instead of an average lifter.
Week 4
Answer the same day
Forward cited answers straight to clients, and check Monday's Digest for what changed in the library.
Tell me who you train.
CoachKit is in private beta. Send one email and I'll reply with a login link the same day.
samyar@getcoachkit.xyz