The person behind the library.
Thylib is a small, independent product with a simple job: bring your scattered medical records into one place your own AI can read. No ads, no data brokering, no growth team — a subscription pays for the service, and that's the whole business model.
Why this exists
Thylib exists because of someone in my family whose care is complicated: more than one clinician, more than one hospital, years of history. If you've walked beside someone through something like that, you know what the appointments are like — fifteen minutes, always spent on the most urgent thing, never on the whole picture.
Last year I put those records in front of an AI and asked the most boring question I could think of: list every heart-rate reading you have. Nearly every one, across years of visits, was high. No single visit had flagged it, because no single visit looks backward. A while later, before a medication change, the same record showed me an emergency visit I had completely forgotten. None of that is a diagnosis, and I treat none of it as one. What it did was make me a far more useful participant in that care: I walk into appointments with specific questions instead of a knot of worry, and the fifteen minutes go to what matters.
I built Thylib so other families can do the same. It starts with medical records because that's where the most signal was for us; more kinds of health data are on the roadmap.
Who's behind it
I'm Melvin, the founder. I have a degree in genetics and spent about ten years at a major U.S. healthcare organization, much of it working on chronic-disease management. That work taught me two things Thylib is built on: how much signal sits unused in medical records, and how rarely it reaches the fifteen-minute visit.
The family member in the story above is unnamed on purpose. The story is theirs as much as mine, and their privacy comes first — the same principle Thylib is built on. If you want to talk to me directly, the support address below reaches me.
Thylib is made and operated by Perceptive One LLC, a California company. It's the legal entity behind the Terms of Service and Privacy Policy — the party legally bound by every promise on this site, under California and U.S. consumer-protection and health-data law.
The promises, in one place
Your records are encrypted in transit and at rest, and are never sold, shared with advertisers or insurers, or used to train models on our side. The only place they go is the AI you connect, when you ask a question. You can delete everything, any time, and records are permanently destroyed within 14 days. Where the honest answer is nuanced — what your AI provider keeps, where coverage has gaps — we say so on the page, not in the fine print: Limits & accuracy.
And if we ever wind down Thylib: you get notice and a one-click export first, and then everything is destroyed on the same 14-day schedule. A product that holds your records owes you an exit that doesn't depend on us still being here.
Reach a human
Every email to customer-support@thylib.com is read by a person — usually me. Questions, a hospital that won't connect, an answer that looked wrong, or a deletion request (including from someone whose records a family member connected): same address.
Curious what it actually does before trusting it with anything? The live demo runs on a fully synthetic family — no account, no card, nothing real.