ChatGPT
Just had an egg-white omelette.
Egg-white omelette · 280 kcallogged · meal #2
371 use cases
Agent/MCP first
ChatGPT · Claude · Gemini
100% natural language
Training · Nutrition · Analytics
your data · any agent
371 use cases
Agent/MCP first
ChatGPT · Claude · Gemini
100% natural language
Training · Nutrition · Analytics
your data · any agent
The logbook of the AI era.It writes itself
Verxion helps you become your best version faster by turning every AI agent into the engine of an automated logbook that writes your workout sessions, helps you track your diet and lets you understand exactly how you're progressing.
Verxion is an MCP-based fitness logbook for AI agents. ChatGPT, Claude, Claude Code and Cursor read and write your workouts, meals, body measurements and analytics through a single source of truth — no app to install.
- free during beta
- no credit card
Your AI agent
Message
01 / 03TRAINING
[ THE PRODUCT ]
What you can do with Verxion.
Better question: what you can't.
BUILD
From any input, a real periodized routine.
- Attach a PDF, image or screenshot — your coach's plan parsed into a real, structured routine.
- Paste from anywhere — Strong export, forum thread, a spreadsheet, an old notebook photo.
- Dictate through a compatible client. Native Voice Coach has a separate limited rollout.
- Or just type it: "build me a 5/3/1 with conjugate accessories" — and iterate from there.
Or start from scratch and iterate forever. Verxion has no end-state — your agent sets the limits.
LOG
Log every set the way you'd write it in a notebook. Your AI does the writing.
- Log it as you rest — "bench 100 × 8 at RPE 8" → captured before you sit down.
- Drop-sets, rest-pause, myo-reps — every mini-set tracked individually, no "12-10-8" shorthand.
- Rest captured automatically. The next set sees what came before.
- PRs detected as you log — by lift, by rep range, with the date.
Every working set, every assistance, every warm-up — captured without leaving the rack.
ANALYSIS
Your week, on one screen.
- Completion + volume + a 7-day map. The week, end to end.
- Vs-last-week deltas attached — knows what's up, what's down.
- Built from your logged sessions. No spreadsheet, no charting work.
- Ask any week — current, last cycle, the deload.
Your AI reads the charts and writes you the story behind them.
[ WHY MCP-FIRST ]
Why MCP-first, even with a native app?
You're already paying for it.
ChatGPT, Claude, Cursor — you probably have at least one. Verxion doesn't ask you to pay twice for a chat interface you already use every day.
Subscriptions beat pay-per-use.
A $20/month plan buys far more tokens than $20 of API calls hitting the same models. Providers subsidize subscriptions to win on volume — you ride that subsidy.
Best-in-class clients, by default.
Use Verxion in your existing AI client, or with the native agent. Native Voice Coach is experimental and limited to enabled accounts.
Frontier models, day one.
New models land in your AI client first. You get them the moment they ship — no app update, no waiting list, no migration.
Local? Same logbook.
Prefer Ollama, llama.cpp, or your own MCP-compatible runtime? Same OAuth, same logbook, same 393 tools. Your data, your model.
[ IN YOUR AI ]
Wherever you ask, verxion answers.
Model-agnostic. MCP-native. Paste the config once and every AI in your stack reads and writes the same logbook.
Claude
Walk me through the last 5 sessions.
review · 5 sessions
Cursor
What are my current PRs?
PR · bench 110kg
PR · squat 160kg
PR · deadlift 200kg
Any MCP client
How am I doing with my program?
training94%
meals88%
hydration92%
program · week 8 / 12[ THE CATALOG ]
Verxion lifts the data. You lift the weights.
371 use cases — and growing. Here's a sample across your training, nutrition and analysis.
Build a full mesocycle
Weeks, days, exercises, progressions. Periodized from day one.
Create a diet plan from your goals
Kcal and macros computed from your goal, phase and current training.
See an exercise's progression across months
Every set across sessions, plotted in time. Linear, plateau, or peak — at a glance.
See your active routine
Your full plan at a glance — weeks, days, next session.
Schedule a refeed window
Bump carbs for a day or a window — your AI updates the targets.
Detect a plateau on a specific lift
Same load, same reps, three sessions running gets flagged with a fix.
Start a routine midweek
Choose a workout or rest for every day left through Sunday. Only confirmed workouts count toward week-zero adherence; the regular cycle starts Monday.
Override a single diet day
Eating out tonight? Adjust just today's plan, not the whole week.
See PR trends across cycles
Your bench in cycle 3 vs cycle 7. Linear, plateau or regression — visible.
Take time off without losing progress
Your plans stay intact while expectations, streaks and adherence wait for your return.
Get a next-meal suggestion
Suggests a meal that fits today's remaining macros and the time of day.
This session vs the last one, side by side
Volume, RPE, sets. The diff from your last session in one view.
Suggest the next workout
Reads your plan and recovery, then proposes today's session.
Search foods by name or barcode
2.5M products via OpenFoodFacts. Scan a Greek yogurt, get the macros.
Compare this month to last
Volume, strength, adherence, sleep — month-to-month deltas on one card.
Edit a workout day before starting
Swap an exercise or tweak volume just for today. The routine stays intact.
Build a recipe from ingredients
Drop the ingredients and quantities — the recipe gets its own macro card.
Compare this mesocycle to the previous one
Same lifts, same weeks — the deltas from one mesocycle to the next.
Find exercise substitutes
No barbell today? Get a movement that hits the same pattern.
Save a meal to reuse it
Combos you repeat — save once, log with one tap from now on.
Track macro trends across weeks
Rolling averages of kcal, protein, carbs and fat — by week or by month.
Plan a drop-set with mini-set tracking
Each mini-set logs its own weight and reps. No "12-10-8" guesswork.
Log a meal against today's plan
Macros auto-balance against your plan. Your AI flags the overflow.
Track weight, perimeters and body comp
Weekly weigh-in, monthly perimeters. Charts that survive a refeed spike.
Start a workout session
Ask your AI to start the session, then record your sets. Voice support depends on the client and enabled features.
Log water and supplements
Hydration target by bodyweight. Supplements taken with meals or alone.
Map your contribution grid for the year
Every active day, every streak, every gap — visible at a glance.
Log a working set with RPE
Weight, reps, RPE, rest — captured mid-set. No app switching.
Fix a meal you logged wrong
Edit weight, food or portion. The day recalculates instantly.
Check active streaks across habits
Training, meals, hydration, supplements — all your current streaks.
Log cardio and steps
Treadmill, bike, run, walk. Distance, time, average HR if you have it.
Map a daily nutrition timeline
All meals logged for a day, in order. Time stamps, macros, ratios.
Spot recovery patterns
Which sessions tank your sleep the next day. The pattern emerges.
Recap the workout you just finished
Sets, time, PRs, average RPE — when you close the session, on one card.
Spot meal adherence gaps
Days where you missed a meal, skipped protein, or fell off the plan.
Last month's story, auto-written
Every 1st, the AI writes your recap: what worked, what stalled, next steps.
Run a post-workout assessment
How tough it was, where it failed, what to adjust next time.
Recover personal records by exercise
All your PRs by lift, by rep range, with the date you hit them.
Build a full mesocycle
Weeks, days, exercises, progressions. Periodized from day one.
Create a diet plan from your goals
Kcal and macros computed from your goal, phase and current training.
See an exercise's progression across months
Every set across sessions, plotted in time. Linear, plateau, or peak — at a glance.
See your active routine
Your full plan at a glance — weeks, days, next session.
Schedule a refeed window
Bump carbs for a day or a window — your AI updates the targets.
Detect a plateau on a specific lift
Same load, same reps, three sessions running gets flagged with a fix.
Start a routine midweek
Choose a workout or rest for every day left through Sunday. Only confirmed workouts count toward week-zero adherence; the regular cycle starts Monday.
Override a single diet day
Eating out tonight? Adjust just today's plan, not the whole week.
See PR trends across cycles
Your bench in cycle 3 vs cycle 7. Linear, plateau or regression — visible.
Take time off without losing progress
Your plans stay intact while expectations, streaks and adherence wait for your return.
Get a next-meal suggestion
Suggests a meal that fits today's remaining macros and the time of day.
This session vs the last one, side by side
Volume, RPE, sets. The diff from your last session in one view.
Suggest the next workout
Reads your plan and recovery, then proposes today's session.
Search foods by name or barcode
2.5M products via OpenFoodFacts. Scan a Greek yogurt, get the macros.
Compare this month to last
Volume, strength, adherence, sleep — month-to-month deltas on one card.
Edit a workout day before starting
Swap an exercise or tweak volume just for today. The routine stays intact.
Build a recipe from ingredients
Drop the ingredients and quantities — the recipe gets its own macro card.
Compare this mesocycle to the previous one
Same lifts, same weeks — the deltas from one mesocycle to the next.
Find exercise substitutes
No barbell today? Get a movement that hits the same pattern.
Save a meal to reuse it
Combos you repeat — save once, log with one tap from now on.
Track macro trends across weeks
Rolling averages of kcal, protein, carbs and fat — by week or by month.
Plan a drop-set with mini-set tracking
Each mini-set logs its own weight and reps. No "12-10-8" guesswork.
Log a meal against today's plan
Macros auto-balance against your plan. Your AI flags the overflow.
Track weight, perimeters and body comp
Weekly weigh-in, monthly perimeters. Charts that survive a refeed spike.
Start a workout session
Ask your AI to start the session, then record your sets. Voice support depends on the client and enabled features.
Log water and supplements
Hydration target by bodyweight. Supplements taken with meals or alone.
Map your contribution grid for the year
Every active day, every streak, every gap — visible at a glance.
Log a working set with RPE
Weight, reps, RPE, rest — captured mid-set. No app switching.
Fix a meal you logged wrong
Edit weight, food or portion. The day recalculates instantly.
Check active streaks across habits
Training, meals, hydration, supplements — all your current streaks.
Log cardio and steps
Treadmill, bike, run, walk. Distance, time, average HR if you have it.
Map a daily nutrition timeline
All meals logged for a day, in order. Time stamps, macros, ratios.
Spot recovery patterns
Which sessions tank your sleep the next day. The pattern emerges.
Recap the workout you just finished
Sets, time, PRs, average RPE — when you close the session, on one card.
Spot meal adherence gaps
Days where you missed a meal, skipped protein, or fell off the plan.
Last month's story, auto-written
Every 1st, the AI writes your recap: what worked, what stalled, next steps.
Run a post-workout assessment
How tough it was, where it failed, what to adjust next time.
Recover personal records by exercise
All your PRs by lift, by rep range, with the date you hit them.
Build a full mesocycle
Weeks, days, exercises, progressions. Periodized from day one.
See your active routine
Your full plan at a glance — weeks, days, next session.
Start a routine midweek
Choose a workout or rest for every day left through Sunday. Only confirmed workouts count toward week-zero adherence; the regular cycle starts Monday.
Take time off without losing progress
Your plans stay intact while expectations, streaks and adherence wait for your return.
Suggest the next workout
Reads your plan and recovery, then proposes today's session.
Edit a workout day before starting
Swap an exercise or tweak volume just for today. The routine stays intact.
Find exercise substitutes
No barbell today? Get a movement that hits the same pattern.
Plan a drop-set with mini-set tracking
Each mini-set logs its own weight and reps. No "12-10-8" guesswork.
Start a workout session
Ask your AI to start the session, then record your sets. Voice support depends on the client and enabled features.
Log a working set with RPE
Weight, reps, RPE, rest — captured mid-set. No app switching.
Log cardio and steps
Treadmill, bike, run, walk. Distance, time, average HR if you have it.
Recap the workout you just finished
Sets, time, PRs, average RPE — when you close the session, on one card.
Run a post-workout assessment
How tough it was, where it failed, what to adjust next time.
Recover personal records by exercise
All your PRs by lift, by rep range, with the date you hit them.
Build a full mesocycle
Weeks, days, exercises, progressions. Periodized from day one.
See your active routine
Your full plan at a glance — weeks, days, next session.
Start a routine midweek
Choose a workout or rest for every day left through Sunday. Only confirmed workouts count toward week-zero adherence; the regular cycle starts Monday.
Take time off without losing progress
Your plans stay intact while expectations, streaks and adherence wait for your return.
Suggest the next workout
Reads your plan and recovery, then proposes today's session.
Edit a workout day before starting
Swap an exercise or tweak volume just for today. The routine stays intact.
Find exercise substitutes
No barbell today? Get a movement that hits the same pattern.
Plan a drop-set with mini-set tracking
Each mini-set logs its own weight and reps. No "12-10-8" guesswork.
Start a workout session
Ask your AI to start the session, then record your sets. Voice support depends on the client and enabled features.
Log a working set with RPE
Weight, reps, RPE, rest — captured mid-set. No app switching.
Log cardio and steps
Treadmill, bike, run, walk. Distance, time, average HR if you have it.
Recap the workout you just finished
Sets, time, PRs, average RPE — when you close the session, on one card.
Run a post-workout assessment
How tough it was, where it failed, what to adjust next time.
Recover personal records by exercise
All your PRs by lift, by rep range, with the date you hit them.
Create a diet plan from your goals
Kcal and macros computed from your goal, phase and current training.
Schedule a refeed window
Bump carbs for a day or a window — your AI updates the targets.
Override a single diet day
Eating out tonight? Adjust just today's plan, not the whole week.
Get a next-meal suggestion
Suggests a meal that fits today's remaining macros and the time of day.
Search foods by name or barcode
2.5M products via OpenFoodFacts. Scan a Greek yogurt, get the macros.
Build a recipe from ingredients
Drop the ingredients and quantities — the recipe gets its own macro card.
Save a meal to reuse it
Combos you repeat — save once, log with one tap from now on.
Log a meal against today's plan
Macros auto-balance against your plan. Your AI flags the overflow.
Log water and supplements
Hydration target by bodyweight. Supplements taken with meals or alone.
Fix a meal you logged wrong
Edit weight, food or portion. The day recalculates instantly.
Map a daily nutrition timeline
All meals logged for a day, in order. Time stamps, macros, ratios.
Spot meal adherence gaps
Days where you missed a meal, skipped protein, or fell off the plan.
Create a diet plan from your goals
Kcal and macros computed from your goal, phase and current training.
Schedule a refeed window
Bump carbs for a day or a window — your AI updates the targets.
Override a single diet day
Eating out tonight? Adjust just today's plan, not the whole week.
Get a next-meal suggestion
Suggests a meal that fits today's remaining macros and the time of day.
Search foods by name or barcode
2.5M products via OpenFoodFacts. Scan a Greek yogurt, get the macros.
Build a recipe from ingredients
Drop the ingredients and quantities — the recipe gets its own macro card.
Save a meal to reuse it
Combos you repeat — save once, log with one tap from now on.
Log a meal against today's plan
Macros auto-balance against your plan. Your AI flags the overflow.
Log water and supplements
Hydration target by bodyweight. Supplements taken with meals or alone.
Fix a meal you logged wrong
Edit weight, food or portion. The day recalculates instantly.
Map a daily nutrition timeline
All meals logged for a day, in order. Time stamps, macros, ratios.
Spot meal adherence gaps
Days where you missed a meal, skipped protein, or fell off the plan.
See an exercise's progression across months
Every set across sessions, plotted in time. Linear, plateau, or peak — at a glance.
Detect a plateau on a specific lift
Same load, same reps, three sessions running gets flagged with a fix.
See PR trends across cycles
Your bench in cycle 3 vs cycle 7. Linear, plateau or regression — visible.
This session vs the last one, side by side
Volume, RPE, sets. The diff from your last session in one view.
Compare this month to last
Volume, strength, adherence, sleep — month-to-month deltas on one card.
Compare this mesocycle to the previous one
Same lifts, same weeks — the deltas from one mesocycle to the next.
Track macro trends across weeks
Rolling averages of kcal, protein, carbs and fat — by week or by month.
Track weight, perimeters and body comp
Weekly weigh-in, monthly perimeters. Charts that survive a refeed spike.
Map your contribution grid for the year
Every active day, every streak, every gap — visible at a glance.
Check active streaks across habits
Training, meals, hydration, supplements — all your current streaks.
Spot recovery patterns
Which sessions tank your sleep the next day. The pattern emerges.
Last month's story, auto-written
Every 1st, the AI writes your recap: what worked, what stalled, next steps.
See an exercise's progression across months
Every set across sessions, plotted in time. Linear, plateau, or peak — at a glance.
Detect a plateau on a specific lift
Same load, same reps, three sessions running gets flagged with a fix.
See PR trends across cycles
Your bench in cycle 3 vs cycle 7. Linear, plateau or regression — visible.
This session vs the last one, side by side
Volume, RPE, sets. The diff from your last session in one view.
Compare this month to last
Volume, strength, adherence, sleep — month-to-month deltas on one card.
Compare this mesocycle to the previous one
Same lifts, same weeks — the deltas from one mesocycle to the next.
Track macro trends across weeks
Rolling averages of kcal, protein, carbs and fat — by week or by month.
Track weight, perimeters and body comp
Weekly weigh-in, monthly perimeters. Charts that survive a refeed spike.
Map your contribution grid for the year
Every active day, every streak, every gap — visible at a glance.
Check active streaks across habits
Training, meals, hydration, supplements — all your current streaks.
Spot recovery patterns
Which sessions tank your sleep the next day. The pattern emerges.
Last month's story, auto-written
Every 1st, the AI writes your recap: what worked, what stalled, next steps.
[ SETUP ]
Set up Verxion in under 2 minutes.
Create your account
Sign in with Apple or Google. First sign-in creates your account.
Plug it into your AI
Pick your client. Paste the URL. OAuth handles the rest.
Install the Verxion ChatGPT App or add as a Custom Connector. OAuth signs you in.
https://mcp.verxion.ai/mcpAdd as a Connector on claude.ai — OAuth signs you in. For Claude Desktop, paste the URL into your MCP config.
https://mcp.verxion.ai/mcpAny MCP-compatible client over HTTP. Paste the URL — OAuth signs you in.
https://mcp.verxion.ai/mcpEvery new MCP client works on day one.
Train, eat, ask.
Ask your AI to build a routine, plan a diet, or kick off a full program.
- Build me a 5-day push/pull/legs
- Plan a cutting diet at 2,200 kcal
- Show me last month's progress
[ FAQ ]
Common questions.
Is my data private?
Verxion applies privacy and security controls designed around GDPR: core EU infrastructure, encryption, account export, and deletion. It does not sell data or display ads. Optional analytics and all providers are described in the privacy policy, cookie policy, and provider list.
What does my AI provider see?
The AI provider sees your prompts, the context needed for the conversation, and results from tools you authorize. In an MCP client, the client decides what to request within granted scopes; in the built-in BYOK agent, Verxion relays the necessary context from its server using your key. Review the selected provider's privacy policy.
Why beta?
Open beta, indefinite by design. The product is solid — but I want to ship real user feedback into it before calling anything v1. Use it, break it, tell me what's missing. Everyone who uses Verxion during the open beta is eligible for the founder price when paid plans launch; once subscribed, that rate stays locked while the subscription remains active. Free, fully usable, and yours.
Will my data survive when paid plans launch?
Yes. Accounts created during beta keep their data and history.
Which AIs work today?
ChatGPT (via the verxion MCP App), Claude Desktop, Claude Code, Cursor, and any MCP-compatible client over HTTP. New clients are added as they ship MCP support.
Does voice work for logging between sets?
Use voice or dictation in a compatible MCP client. Native Voice Coach is also in limited rollout, with or without a workout. Native set logging needs separate enablement; otherwise, log sets in the workout screen.
Can I use Verxion from my phone today?
Yes — through the ChatGPT mobile app, the Claude mobile app, or the web. Voice and text from your phone. The native iOS app is currently in private beta and will be available soon on the App Store.
What's on the roadmap?
Native iOS app, currently in private beta and coming soon to the App Store, built in public — follow @_verxion_ on X to watch it ship. Open API for members to build their own apps on Verxion. Expanded wearable sync beyond Apple Health. Paid tiers when they're worth shipping. And more. Today: paste a Strava or Whoop export and your AI logs it for you.
How do I report bugs or send feedback?
DM @_verxion_ on X with what broke, what's missing, or what's confusing. Email works too — [email protected]. Every report shapes what ships next.
[ START NOW ]
Open your logbook.
Free during beta. No card. Sign in with Apple or Google.
OAuth-only · revoke anytime
- Free during beta
- No credit card
- Your account survives paid launch