Lina is the AI front desk for practices that take their reputation seriously. She picks up when nobody else can, books in your real calendar and hands off to a human when she should. We deliberately take on only a few practices.
Lina operates in German, for German practices. This English page is for context. We currently onboard German practices only.
of bookings happen outside opening hours. Evenings, weekends, the lunch break. Exactly when your front desk is closed.
is how long a patient waits, then hangs up and calls the next practice. The appointment is gone before the second ring.
No new staff, no new phone system, no IT project. Lina listens, understands intent and books, while your assistant stays with the patient instead of waiting in the insurer's hold queue.
Lina does not play back four canned sentences. She understands what a caller wants, checks the calendar and answers in real time, differently on every call. The recordings on the right are real situations. The number is live.
Recordings from the production speech engine (Deepgram + ElevenLabs Flash v2.5); voice and pacing are calibrated per practice. The clips and the demo line are in German. The live demo runs against the example persona "Lina", example practice "Dr. Weber". A real emergency does not belong in a demo: in a genuine emergency dial 112 or the on-call medical service at 116 117.
Every task is stress-tested against real call recordings before the agent gets anywhere near a public number.
Live on Telnyx + ElevenLabs Flash v2.5, sub-second latency. German primary. Sounds like your practice, not like a default template.
Reads your actual calendar (Doctolib, samedi, custom PMS), holds the slot, confirms with the caller, writes it back. No "we'll call you back" loop.
Acute pain, medical questions, anything outside the calibrated scope: instant warm handoff to your front desk. The caller never argues with the bot.
Full transcript with timestamps, confidence score per turn, booking, handoff reason. Searchable in the dashboard, retained GDPR-compliant.
The most dangerous AI on a practice phone is the one that guesses. Lina does not guess. She knows her limit, states it openly and hands off to a human before things get delicate.
Patient data does not leave Germany. Lina identifies as an AI on the phone, as Art. 50 EU AI Act requires from August 2026. Your data protection officer gets the data processing agreement (AVV) as a finished PDF, not as a promise.
There are categories of alternatives. Call centers, generic voicebot platforms, in-house solutions. Each has its trade-off. Here is the honest comparison.
| Criterion | Call center / Provider A | Voicebot platform / Provider B | Lucid AI Labs |
|---|---|---|---|
| Setup time | 2–6 weeks onboarding | 1–3 weeks (template) | 7 business days, brief → live |
| Practice software integration | Rare, expensive add-on | Generic API, no calendar | Charly, Dampsoft, evident, native |
| GDPR & data residency | Often US servers, unclear | US cloud, AVV on request | Germany (Hetzner), AVV in the contract |
| Human handoff | Manual, delayed | Timeout after a loop | < 2 s, confidence gate, no loop |
| Emergency triage (11 pm) | Call center not staffed | Voicemail fallback | Instant to emergency number, rule-based |
| Practice voice & tone | Default agent voice | Prompt engineering (shallow) | Fine-tuning on your brand voice |
| Recall management | Extra service, € + | Not included | From Q3 2026 included for founding |
| Transparency & logs | Opaque | Basic dashboard | Full call logs, accessible any time |
| Monthly cost (base) | €600–2,000 + minutes | €200–800 + overages | €449 / mo (founding · year 1) · then Founding Alumnus €879 / mo |
| Performance guarantee | None | None | 60 days (founding plan) |
| Direct engineering line | Account manager | Support ticket | Fabi directly, no intermediary layer |
An average dental practice gets ~80 calls per week. 30–40 % of them are missed. Each new patient is worth €300–400 (lifetime value). That works out to:
Lina pays for herself from the second recovered patient each month. Everything after that is profit, not cost.
We deliberately take on only three founding practices. Close support at the start matters more to us than fast growth.
The three founding seats are the start, not the end. After that we open for a few more practices at a time, in small steps, never for everyone. Past a certain size a real standard cannot be held, so we stay deliberately small: every voice calibrated to your practice, every call tested before going live.
Three public tiers, all currently in beta, opening after the founding program. Final prices, no VAT (§ 19 UStG, German small-business rule).
In the first year · €0 setup · from year 2 Founding Alumnus (Professional −20 %) · cancel monthly
Request a founding seat60-day performance guarantee · terms apply
Everything included:
The Professional setup of €1,499 is waived entirely. Live in 7 business days, from the signed brief to the first answered call.
Direct email and phone line to Fabi with a 4h SLA. No ticket system, no SDR funnel, no offshore support.
Logo + statement on lucid-ai.app as one of the first 3 practices running Lina in production. Visible to every future prospect.
If Lina catches fewer than 30 otherwise-missed calls in the first 60 days: full refund, setup + all monthly fees. No discussion.
Seats are assigned in order of inquiry
The default choice for solo practices with normal call volume.
Growing practice, 2 locations, international patients. White-label and recall module included.
Multi-site clinic (MVZ) or practice group with up to 5 locations. API access, unlimited PMS integrations.
Annual billing: 16.7 % discount, pay for 10 months, use 12. Beyond Enterprise: Lucid Concierge for MVZ networks from ~€2,500/mo · quoted individually.
From the signed brief to the first live answered call in 7 business days, otherwise the setup is free.
Full refund of setup + monthly fees if the agent catches fewer than 30 otherwise-missed calls in the first 60 days. No negotiation.
§ 19 UStG · no VAT · billed via Stripe · cancel monthly at any time
We do, in 7 business days. You send us your practice website, fee list, common insurance explanations. We build the knowledge base, test, go live.
Lina hosts exclusively in Germany (Hetzner Falkenstein). The data processing agreement (AVV) is part of the contract. You keep all API keys yourself; we never see your data. The BNetzA notification is filed.
Lina routes immediately to your emergency number (locum / night hotline / on-call plan). You define the rules; Lina follows them. Where appropriate, she also states 116 117.
Charly, Dampsoft, evident, z1, ivoris, plus anything that offers a calendar export or an API. If your software is not listed, ask. We build an integration.
From month 13 you become a Founding Alumnus: the Professional plan minus 20 % permanently (currently €879/month, after €449 in the founding year), grandfathered as an existing customer. You are not obligated to renew; cancel monthly with 30 days' notice.
The 60-day performance guarantee is part of the founding plan. If Lina does not catch at least 30 otherwise-missed calls in the first 60 days after going live, measured against the call logs, we refund the full setup fee and every monthly fee paid. Founding is billed monthly, cancel at any month-end, no minimum term.
Yes. Transparency is one of our 4 safeguards. Lina introduces herself as a "practice assistant" and makes the AI identity clear at the start (Art. 50 EU AI Act). Patients respond well to it, because the alternative is that nobody picks up.
Escalation to a human. Lina has a confidence threshold (0.75); below it she hands off immediately. No hallucinating, no guessing. Full handoff documentation in the admin dashboard.
Three founding practices at founding terms, then the founding program closes. After that it continues selectively, in small numbers, never for everyone. Send a short brief about your practice: size, current setup, biggest phone problem. I read every brief myself and reply within 24 hours, either way.