If you don't feel the value of Merlin after paying for your first month, tell us and we'll refund you in full. Monthly Core, once per person, by email within 30 days. The terms
Bring what you have: years of bloodwork, a scan, the ring, a genotype in an old email, or nothing yet and a list of symptoms.
Merlin reads it the way a team of elite clinicians would, every system and every year. Then it shows you where to start, with everything else still in view.
From there, Merlin is a health coach in your pocket, built on your own record. The more you log, the more it can guide: every intervention tracked to the markers it should move, assessed for impact, over time.
Where you are right now
What Merlin does
Reads your sex hormones against the stress axis, the sleep and the life that's happening to you, in phase where there's a cycle, and tells you what would settle it.
What Merlin does
Takes everything you've gathered and thinks it through as one person, then shows you what's working for you, marker by marker.
What Merlin does
Reads the particle number against the inflammation, the genotype and the diet, and writes the questions the appointment had no time for.
What Merlin does
Start with the questions, free: your history, and how you feel. When you want labs, you can bring them from anywhere or order them inside Merlin (our baseline panel is $180), and your results will get read from whatever you choose.
However you got here, you come out the same way: knowing what's going on, where to start, and what's next at every step.
What you'll see
A real Cardiovascular surface from a real anonymized panel. The narrative, the score, the layers underneath: this is the output exactly as Merlin wrote it. Yours will be built the same way, on your own numbers.
A detailed look at the factors influencing your Cardiovascular score.
Cardiovascular
FairApoB sits at 117 mg/dL and LDL particle number at 2181 nmol/L - both above the threshold where the conversation about familial hypercholesterolemia stops being academic. The protective markers are real and worth crediting: triglycerides at 69, hsCRP at 0.4, Lp(a) at 17, ApoB/A1 ratio at 0.75, and Pattern A morphology with peak size at 222.9 Angstrom.
...continues with the wall-engagement pivot (OxLDL + Lp-PLA2), the upstream physiology (ApoE 3/4 + Apo C1), and the low-cost levers (Vit D + Omega-3).
A question to sit with
When you look at your typical week of eating, where is the saturated fat actually coming from - and is the pattern something you've consciously chosen, or something that's defaulted into place around your schedule? The ApoE 3/4 genotype makes this a higher-leverage question than it would be for someone else.
You also get the score breakdown, the possible root causes, the questions to take to your physician, a supplement plan, the imaging worth considering, and prompts for the conversation.
See the full readFrom an actual Merlin Cardiovascular surface. Every system you have data for gets one of these, and it's about you, not about someone your age.
How Merlin thinks
Across systems. Broken sleep changes what your bloodwork means. The stress you're under changes how your hormones should be read. What you eat and take changes what a marker can say. Every result is read against every other, and against the life it came out of.
In constellations. It looks for the pattern that runs between markers. Three unremarkable lines can make one remarkable thread.
Clinically. The routes of deduction a good clinician runs in their head, run in full: what this could be, what would confirm or rule it out, what's worth running next and why. Merlin thinks clinically and never diagnoses. It shows you how to work with your clinicians, and what to bring them.
Gated. Where the evidence isn't there, it says so and tells you what would settle it. It doesn't guess.
Locked down. Encrypted, visible only to you and those you allow access. Never sold, never used to train a model. Export or delete your record whenever you like.
Merlin runs on AI and says so. What makes it different is everything around the model: the clinical gating, the routing, and the refusal to guess.
Start your first month. An account and a few questions about you: age, sex, the basics. Two minutes.
Upload what you have. PDFs, portal downloads, a photo of a printout. Any lab, any year, any provider. If there's a lot, Merlin tells you what order to bring it in, or Premium reads it all at once. Nothing yet? Bring labs from anywhere, order our $180 baseline panel inside Merlin, or start with the questions, free.
Merlin reads it, then chooses what to ask you. The questionnaires it offers depend on what your results show: a medical history, symptom maps for the systems that matter. About thirty to sixty minutes if you do all of it, timed as you go. Skip what you like and come back.
Your first read. Every system you have data for, scored and thought through, every result against every other. Then one ranked list of what matters most, so you know where to start, and each next right step as things evolve. Yours to keep.
Then the Grimoire. Seven steps across the portals unlock it, all doable in your first month, and Merlin writes your whole-person read. Only one lab panel? Bring another from anywhere, or order our $180 baseline panel inside Merlin.
Then Merlin guides each change. Log what you start, and when your next result arrives, it tells you whether it worked and what to do next. That's what the membership is for.
She holds everything Merlin knows about you and talks it through the way a person would. She is AI, and she'll say so, and she leaves the doctoring to your doctor. Ask her what a read means, what to do first, or what to bring to your appointment.
All of it, in one place
Grimoire · synthesis
39 years old, a few more trips to the bathroom - though who's counting? Alongside a newborn and no sleep it's hardly noticeable. Inflammatory markers a touch high, nothing a family physician would flag as a ‘fix now’ issue. A father who had colon cancer at 52, mentioned once, years ago. None of it is anything you'd ever think to raise, let alone track.
That's the quiet part. Each piece files under the season you're in - the baby, the stress, the exhaustion - and mostly, it belongs there. The frog in slowly warming water is having a season too, right up until the season leaves a scar.
The small things you're not sure even matter are usually the ones a complaint gets built on, and the easiest to leave out. Ask the right questions, though, and the most boring lines in your history turn into a thread. The father. The bathroom trips. The low, quiet inflammation underneath. A shrug each, alone - one thread, together. Enough, against that history, to put screening on the table with your doctor before the calendar would.
~ Merlin doesn't diagnose. It helps you clarify a full picture of your reality. It asks the questions, turns over the stones, and equips you with what you need for your medical providers. ~
The Grimoire, Merlin's whole-person read. Seven steps unlock it, all doable in your first month.
However much you've collected over the years, Merlin reads it as one record and tells you what to do first, and at every next step. Start with your first month.
Start your first month - $35Start with a month. Keep the read.
The promise
If you don't feel the value of Merlin after paying for your first month, tell us and we'll refund you in full. No results yet? Bring labs from anywhere, order our $180 baseline panel inside Merlin, or start with the questions, free. The guides are free to read, whole, always.
Tell us you're not happy within 30 days of your first charge, and we'll refund you. This covers your first month of Core. Panels are paid for separately. Full terms
Core
$35/month
Annual, $348/year - two months free, opens after your first month
Every portal stays current as your data grows. Bring anything to any of them and Merlin reads it with everything else you've brought, across all twelve systems: bloodwork, imaging, genetics, body composition, gut, movement, sleep, nutrition, neuropsych, female and male fertility, and spirituality. Seven steps across the portals unlock your Grimoire, the whole-person read, and all of them are doable in your first month. See what each change you make is doing to your markers, journal by talking to it, and take any of it to Seraphina, your guide.
A month of Core membership covers what most people need. As with most of these systems, it runs up to a usage limit, which you'd likely reach with a current lab upload, several historical labs and around 30 coach messages. If your history is large, some of the more complex records may use it up sooner - but we'll tell you, and walk you through what to upload when, so that your first analysis gives you real insight and everything else follows in the order that most improves what Merlin can see about you. Or choose Premium, and Merlin reads everything you bring straight away.
Premium
$99/month
Everything in Core, and you never hit a ceiling. For anyone who wants to stay in the conversation with their biology daily, or who arrives with years of results, scans, gut tests or genetics. Premium reads all of it straight away.
Choose a panel, confirm your details and pay. A licensed provider network signs off on every order. You take the requisition to a draw site, and the results come straight back into Merlin, usually 7 to 10 days after the draw. There are six panels, for adults 18 and over, and with no results yet the $180 baseline panel is the place to start. You don't need a membership to order; the full reading comes with Core. Results from any other lab or provider get read the same way.
The model underneath
We're building Merlin on the art-gallery model: the kind that keeps its doors open by keeping them low-cost. The guides are free to read, whole, always. Your first month is $35.
The deep work (the ongoing analysis and synthesis) costs money to run, and we price it to cover that cost, not to fund expansion. $35 a month is what it takes to make elite-level reading accessible at a fair price: to undo the assumption that deep self-understanding belongs only to those who can afford concierge medicine, and to keep it within reach of anyone who wants to look after their health.
In the old stories the hero never travels alone. Arthur had Merlin. We believe in that enough that we named our children for the guides who stand beside heroes, and the app takes their names for the same reason. Merlin guides your plan's steps. Seraphina guides your walk through them. You stay the one in charge.
Built in Austin by clinicians who got tired of the 15-minute appointment.
For physicians
Your functional and integrative medicine patients arrive with their own data already assembled and read across systems, with the mechanism behind every flag and the questions worth asking already surfaced. The data stays theirs, and they choose what you see. The practitioner program is available upon request, built to run alongside your practice.
Tell us about your practice and we'll set you up.
Stay close
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