A real demo, on data that was never real.
This demo runs on a composite family of four, generated synthetically — years of labs, medications, conditions, allergies, and visit notes that look and behave like the real thing but describe no actual person. Add the Thylib connector to the AI you already use, sign in, and start asking right away.
Trying it is free — you accept our terms once, with no subscription and no card. First create your account at thylib.com and switch the demo on from your dashboard; then add the Thylib connector to the AI you use, and the synthetic family is there. You can switch the demo off anytime — and connecting your own records switches it off automatically, so the demo never lingers alongside real data.
First on the website, then in your AI.
Access runs through your Thylib account, so you set the demo up on the website first — then point any AI client at it.
- Sign in at thylib.com — create your free account with Google or Apple.
- Accept the agreement.A one-time acceptance of our terms and privacy policy — there's no subscription and no card to try the demo.
- Turn the demo on from your dashboard. The synthetic family appears, and you can switch it off there anytime. (It stays off once you connect your own records — the demo never mixes with real data.)
https://mcp.thylib.com/mcpOnce the demo is turned on in your Thylib account (step 1 above), add the connector below and sign in with the same account when prompted — the synthetic family is already there. Free to try; no subscription, no card.
- 1On claude.ai, open Settings → Connectors and click Add custom connector.
- 2Name it Thylib, paste the URL above, and click Continue.
- 3On the next screen, keep the settings Claude auto-detects — Authentication Always required and OAuth client Use Anthropic's hosted client metadata (Recommended). Nothing to change, and no client ID to enter — just finish adding the connector.
- 4It now appears in your Connectors list. Click Connect, then Allow access on the Thylib request, and sign in with Google or Apple on the Thylib screen.
- 5Start a new chat, open the + menu to enable Thylib, and ask one of the questions below — your demo family is there. Custom connectors work on every plan, including Claude Free (which allows one).
Custom connectors can only be added from claude.ai or the Claude desktop app — the Claude mobile app can't add them. But once you've added Thylib from either of those, it syncs to your account and becomes available in the mobile app too.
These products rename menus often — if a step looks different, look for “custom connector,” “MCP server,” or “developer mode.” Any MCP-compatible client works with the URL above.
Four patients, four very different stories.
Each was generated with Synthea, an open-source synthetic-patient engine. Tap a question to copy it, then paste it into your AI.
Audie Altenwerth
68 · FType 2 diabetes that has slowly progressed into early kidney disease, with insulin and roughly 2,000 lab readings stretching back years — the kind of slow trend no single visit reveals.
José Emilio Zamora
55 · MMultimorbid: asthma, hypertension, and ischemic heart disease after a bypass — plus chronic pain and both drug and food allergies spread across many prescribers.
Lakesha Bauch
50 · FChronic intractable migraine and chronic pain alongside recurrent UTIs, obesity, and prediabetes — a tangle of overlapping conditions and medications.
Hildred Hill
5 · FA pediatric patient: childhood asthma and allergic rhinitis, a tree-nut allergy with an epinephrine auto-injector, and a full childhood immunization history.
The full clinical picture — read-only.
The demo exposes the same read-only tools as a real connection. It can look, summarize, and reason — it can never change a record.
When you're ready, the switch is clean.
The demo is a starting point, not a mode you have to unwind. Here's exactly what happens when you bring your own records in.
Your records switch the demo off
Connect your MyChart from your Thylib account and the synthetic family switches off automatically. The demo only exists while you have no family of your own — Thylib never holds the demo and your real records side by side.
Nothing synthetic lingers
Switching off the demo removes it from your account, not just from view. There's no synthetic family sitting in the background of a later query — the moment your family exists, the demo is gone.
Answers grounded in your records
Every real query is scoped to your own records and stamped with when they last synced, so the AI reasons over your actual history. Start a fresh chat when you switch — and because assistants now keep memory across chats, clear or pause that memory too, so nothing from the demo lingers.
A fresh chat clears the current conversation, but today's assistants also keep memory across chats — usually on by default. To be sure no demo detail follows you into your real records, explore the demo with memory off, or clear it when you switch:
Claude — Settings → Capabilities → Memory → View and manage to delete items, or Reset memory to wipe everything.
ChatGPT — explore the demo in a Temporary Chat (never uses memory), or clear it under Settings → Personalization → Manage memories.
Gemini — visit gemini.google.com/saved-info to delete entries or turn Memory off.
This is synthetic. Your records are richer.
When you connect your own MyChart, the AI reads across every provider you've seen — your real labs, medications, and history, kept private and yours to delete anytime.
Informational and educational only — not medical advice.