Verxion is in open beta: the logbook your AI writes to

Verxion is live in open beta — an MCP-first fitness and nutrition logbook where your AI is the first-class client. Free now, founder rate for life.

You used to log training like this: open the app, find the screen, tap through a form, search a database, fix the serving size, save. Every set. Every meal. Every day. The tracking became the work.

Last night I finished a hard set and said it out loud, mid-rest: “rest-pause on bench, 100 kilos — one heavy single, then four, then two.” It logged one rest-pause set, kept the mini-sets in order, and counted the 100 toward my bench PR. I never opened an app. You train; Verxion logs.

Starting today, you can use it too. Verxion is in open beta.

A logbook your AI writes to — not another app

Verxion is a fitness and nutrition logbook with one decision at its core: your AI agent is the first-class client, not an afterthought bolted onto an app. You describe a meal, a set, a weigh-in in plain language, and Verxion is the single source of truth — data, structure, and analytics — behind the conversation.

The logbook writes itself while you talk. As far as I know, it’s the first fitness platform built MCP-first — agents before screens, with an open API next.

It lives in the AI you’re already subscribed to

Verxion isn’t fighting for a slot on your home screen. It’s an MCP server, so you paste one URL once and the agents you already pay for read and write the same logbook:

• ChatGPT, Claude, or Gemini — the assistant you already talk to every day. Web, mobile, voice. This is the path for most people.
• Cursor or Claude Code — yes, you can log your training from your editor, if you’re that particular kind of hardcore.

That framing has consequences I care about:

• You’re already paying for it. Your ChatGPT, Claude, or Gemini subscription is the runtime. No second app, no per-message AI fees, no duplicate data.
• Everything the client ships, you get for free. Voice recognition, image OCR, workflows, subagents, skills — whatever your agent app adds, Verxion runs on top of it. Snap a photo of a nutrition label and your AI reads it straight into a log; wire a skill or a subagent to close out a whole week in one shot. You inherit your client’s roadmap, not just mine.
• Model-agnostic by design. Switch clients, switch models, keep your data. The logbook doesn’t care who’s writing to it.
• Frontier models, day one. When a better model ships, you use it the day it lands — Verxion doesn’t have to rebuild a chat UI to keep up.

Sign-in is OAuth-only — Apple or Google, no password, no recovery dance — with revocable scopes per client.

This is the part I think is genuinely new — and a one-way paradigm shift. Once your logbook lives behind the agent instead of inside an app, the agent’s entire capability surface becomes your logging surface, and it compounds every time your client ships something. Agents are only going to spread — to glasses, watches, cars — and your training rides along instead of being stranded in an app you have to keep updating. Go back to tapping forms after that and it feels broken. You put your energy into training; Verxion puts its energy into building, logging, and analyzing.

What it does today

This isn’t a waitlist or a teaser. It’s the version that runs in production, and it ships 354 use cases across training, nutrition, and analytics. A few that show what “AI-native” actually means:

• Log meals in plain language — and adjust on the fly. “Just had grilled chicken with rice and a side salad — log it as lunch.” Parsed, macro’d, logged against your plan. Change your mind mid-meal — “no rice, give me sweet potato” — and the day’s macros and targets reconcile themselves. Barcode works too (2.5M products via OpenFoodFacts).
• Log training by talking — however the words come out. Mid-set, breathing hard: “5x100, RiR 0” or “hit 100 for 5 and left nothing in the tank.” Same set, logged the same way — reps, load, RPE, volume, PRs, all updated. Drop sets, supersets, rest-pause, AMRAP, and pyramids stay structured, not flattened into three fake “normal” sets. Voice works hands-free.
• Ask your logbook like a coach. “How’s the week going?” “Am I recovered for a heavy squat day?” → “Readiness 68/100 — volume’s been up, limited rest Mon–Tue, the knee note from Tuesday is still in the log. Squats are doable; back off the top set 10%.” Not a number — a read on your actual data.
• Get the story written for you. On the 1st of each month, Verxion writes a snapshot of your real numbers — which lifts moved, which muscle groups lagged — not a generic template.

Your data is yours: EU-hosted, GDPR-compliant, one-click export, one-click delete. No ads, no resale, no sending your history to a third party.

Why it’s a beta, and why it’s open

I build Verxion in public, and I use it every day — it’s my own training and nutrition log. It works well enough that I trust it with my own data.

But “works well for me” and “works well for everyone” are different claims, and I’d rather be honest about which one is true. Beta isn’t a hedge — it’s the accurate word. There are edges I haven’t hit because I don’t lift, eat, or train the way you do. The fastest way to close that gap is to put it in front of people who use it differently and listen.

So this is an open beta, indefinite by design. No artificial scarcity, no “request access.” You sign in and get the whole thing.

Free now — and a founder rate for being early

During the beta, Verxion is 100% free. No card, no commitment. Unlimited routines, unlimited diets, unlimited logs.

It won’t be free forever — when v1’s paid tiers land, they’ll land. But everyone who shows up during the open beta locks in a lifetime founder rate on that pricing. And your data survives the transition: accounts created in beta keep their full history. Helping harden the product early is the deal, and it’s a permanently better price.

What’s coming

The current version is the foundation, not the finish line:

• A native, open-source client (Expo) I’ll build in public — follow @verxion on X to watch it ship.
• An open API, so members can build their own apps on Verxion’s data and tools, not just the chat interface.
• Wearable sync — Strava, Whoop, Apple Health. Today you can already paste a Strava or Whoop export and your AI logs it for you; native sync is next.
• Paid tiers, when they’re worth shipping and not before.

Start using it

Three steps, under two minutes:

1. Go to verxion.ai and sign in with Apple or Google.
2. Paste the config snippet into ChatGPT, Claude, Cursor — or any MCP client.
3. Tell it what you ate or how you trained. That’s the onboarding.

When something breaks, is missing, or confuses you, tell me directly: DM @verxion on X, or email [email protected]. I read all of it — it’s the whole reason the beta is open.

I built the logbook I wanted to stop thinking about. Now I want to find out what it takes to make it the one you’d stop thinking about too.