Clinical decision support · pre-diagnosis · triage

The differential,
reasoned live.

Feed the API symptoms, signs, labs, imaging and exam findings — over 2,000 clinical data points. It returns a ranked differential, surfaces the can't-miss diagnoses, and names the next test, question and specialist. Decision support for licensed clinicians — never a diagnosis.

EndlessMedical processes 2,000+ clinical data points
Differential · live
Triage by specialty or acuity from symptoms, signs & results
Structured medical documentation on-the-go via the API
Guides the most efficient diagnostic path
A foundation to build a symptom checker on
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Hosted on certified, compliant infrastructure

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2000+
Clinical data points the engine reasons over
830+
Structured clinical features they group into
180+
Diseases in the live differential model
Free
Professional-grade API, no cost
Watch it reason

A messy clinical picture,
resolved into a defensible next step.

Reasoning · session live
Community-acquired pneumonia71%
Acute bronchitis14%
Pulmonary embolismRED FLAG 9%
COVID-196%
Next best test
Chest X-ray · D-dimer
Triage
Pulmonology · ED
01 · Capture

Every signal, structured

Symptoms, history, vitals, blood and urine work, imaging and physical-exam findings — entered as features the engine can reason over.

02 · Weigh

Probabilities, updated live

Each new feature shifts the likelihoods across a broad disease model — and the engine can show why a candidate is more or less likely.

03 · Flag

Catch the dangerous miss

Emergency, life-threatening and rare conditions are surfaced and flagged the moment they become plausible — like the pulmonary embolism here.

04 · Act

The efficient next move

The most informative next test to order, the next question to ask, and the right specialist to triage toward.

One API, the whole loop

Everything between complaint and care plan.

Ranked differential

Possible diagnoses ordered by likelihood — each a data point, never a verdict.

Red-flag detection

Emergency, life-threatening and rare conditions surfaced the moment they're plausible.

Next best step

The most informative next test and the next question — the efficient diagnostic path.

Triage to specialty

Route patients by acuity and specialty from history, signs and results.

Labs & imaging aware

Blood and urine results, imaging and exam findings feed straight into the reasoning.

Respiratory & COVID-19

Triages flu-like and respiratory presentations — COVID-19 coverage since March 2020.

What the API gives you

Every benefit of the engine, in one API.

AI clinical reasoning on a clinician’s laptop
01 · Pre-diagnosis

Advanced AI clinical pre-diagnosis

Symptoms, signs, blood work, imaging and exam findings in — a ranked differential with red-flag detection out.

Clinician examining a coughing child with her parents
02 · Available now

Triage respiratory presentations & COVID-19

Use it today to triage flu-like and respiratory presentations, fever and more — COVID-19 coverage since 2020.

Source code on screen
03 · Developers

A developer-first REST API

JSON in, ranked differential out. Open a session, push features as you gather them, analyze — and documentation generates in real time as you build.

Secure data infrastructure
04 · Security

Deployable on HIPAA-compliant infrastructure

Deployable on HIPAA-compliant infrastructure — the security and privacy sensitive healthcare data demands.

Medical graduates
05 · Research & education

Synthetic datasets & medical education

Enables synthetic, individual patient-level datasets that reflect real disease prevalence — for AI/ML research — and powers quizzes and medical education. Learn from and test yourself against top AI models at EndlessMedical.Academy.

06 · Apps

A symptom checker and a provider app

The same engine powers a consumer-facing symptom checker and a clinician-facing provider app — both built directly on the EndlessMedical API.

Clinical team reviewing structured documentation
07 · Clinical trials

Built to support clinical trials

Use the API inside clinical trials to capture structured findings and model differentials reproducibly — compatible with US clinical documentation standards.

For developers

Five calls to a
working differential.

Open a session, push features as you gather them, analyze. Structured documentation generates as you go — compatible with US clinical documentation standards. JSON in, ranked differential out.

REST · JSONFree tierSandbox consolePatent-pending · USPTO #20200118691
differential.http — representative flow
# 1 · open a reasoning session
POST /v1/session            → { "id": "0x9F·A2" }

# 2 · push features as you gather them
POST /v1/feature  { "Temp": 38.9, "Cough": true,
                     "PleuriticPain": true, "SpO2": 93 }

# 3 · analyze — ranked differential + flags
POST /v1/analyze   {
  "differential": [
    { "dx": "Community-acquired pneumonia", "p": 0.71 },
    { "dx": "Pulmonary embolism", "p": 0.09,
      "flag": "life-threatening" }
  ],
  "nextTests": ["Chest X-ray", "D-dimer"],
  "triage": "Pulmonology · ED if red-flag"
}
Beyond the API

We build the hardware, too.

EndlessMedical is a medical-technology company. Alongside the AI engine we develop devices for the patients who need the most support — those on mechanical ventilation and renal replacement therapy.

Mechanical Ventilation — M.V 2.0 & 2.5

A ventilator system with multiple independent airflow-control lumens. Public technical information is available on M.V 2.0 and 2.5.

Patented · US 2022/0072250 A1

Blood-pressure monitor

A new approach to non-invasive blood-pressure monitoring, under active development.

Patent pending

Dialysis machine

A renal-replacement-therapy device for patients requiring dialysis, under active development.

Patent pending

In development. These devices are in active research and development. Features described here are forward-looking and currently hypothetical — they require further research and validation, and are not available for clinical use.

The team

The physician behind the knowledge base.

Portrait of Lukasz Kiljanek MD
Lukasz Kiljanek, MD
Founder · main AI/ML researcher · author of the knowledge database

A board-certified Internist, Nephrologist and Hypertension Specialist — a graduate of the GlomCon Glomerular Diseases Fellowship and the Doximity Digital Health Fellowship — bringing the knowledge and experience of a practicing physician and researcher, fully aware of the challenges in today's medical landscape: medical errors, communication gaps, resource overutilization, and the concerns of both physicians and patients.

In periodic collaboration with seasoned IT professional Konrad Rotuski, the mission is to positively transform the lives of patients — research eliminating diagnostic errors, minimizing missed diagnoses, and optimizing the utilization of resources for patients and healthcare entities, while improving AI-supported medical education and patient–provider communication.

Internal medicine Nephrology Hypertension GlomCon fellow Doximity Digital Health fellow
Questions?

Let's stay in touch.

If you have any questions, write to the founder and main AI/ML researcher Lukasz Kiljanek MD — every message is read.

By sending, you agree we may use your name and email to reply to your message. We don't sell your information or use it for anything else — see our Privacy Notice. Please don't include medical or patient information.

Free · professional-grade

Put a second opinion
behind every decision.

Build EndlessMedical into your product, workflow or research. Decision support for licensed clinicians — always pre-diagnostic, never a diagnosis.

Questions? Use the contact form.