Vitalis — Clinical Intelligence MCP Server

One-line pitch: A production-grade MCP gateway that gives any LLM client safe, authenticated, auditable access to six clinical intelligence capabilities — triage, drug safety, diagnostics support, medical research, FHIR patient records, and care coordination — powered entirely by live public health data, with zero PHI.

1. Overview & Differentiation

Generic symptom-checker LLM applications typically bolt a static disclaimer onto free-form text. Vitalis is developer infrastructure:

1. Safety is enforced by framework middleware, not prompt engineering:

   • EmergencyDetectionGuard scans inputs for red flags before execution.

   • ClinicalSafetyInterceptor rewrites overreach language (e.g., "you are diagnosed with"), stamps urgency tiers, and forces clinical disclaimers automatically.

2. Six Real, Live Federal & Clinical APIs:

   • NLM RxNorm & RxClass

   • OpenFDA (Labels, FAERS Adverse Events, Enforcement/Recalls)

   • NCBI PubMed (E-utilities with XML abstract parsing)

   • ClinicalTrials.gov API v2

   • HAPI FHIR R4 (with Synthea synthetic patient sandbox + SMART Health IT failover)

   • NLM Clinical Table Search Service (ICD-10-CM)

3. Enterprise Gateway Layer: API-key auth with scopes, per-tool sliding window rate limits, structured JSONL audit logs with input hashing, and health checks.

4. Interactive Next.js Widgets: 6 custom UI widgets (including the flagship patient summary card) linked via @Widget decorators.

Related MCP server: NitroStack Calculator MCP Server

2. Capability & Module Architecture

Vitalis exposes 25 clinical tools across 6 modules, plus core resources and prompts:

🏥 Module 1: Triage (triage)

• triage_assess_symptoms: Full triage assessment yielding urgency tier (emergency, urgent, routine, self_care), red-flag matches, candidate conditions, and guidance.

• triage_check_red_flags: Fast emergency-only screening for critical red-flag terms.

• triage_get_care_options: Maps urgency tier to concrete clinical care pathways.

💊 Module 2: Drug Safety (drugs)

• drug_search: Resolves free-text drug names to RxCUI identifiers, synonyms, and drug classes.

• drug_get_label_info: Official FDA drug label sections (boxed warnings, contraindications, interactions, etc.).

• drug_check_interactions: Pairwise drug interaction cross-scanning over official FDA drug labels with evidence excerpts.

• drug_get_adverse_events: Top reported adverse reactions from FDA FAERS.

• drug_get_recalls: FDA enforcement and recall actions.

🔬 Module 3: Diagnostics Support (diagnostics)

• dx_lookup_condition: Condition name lookup to ICD-10-CM codes.

• dx_interpret_lab_value: Rule-based interpretation of lab values against ~25 analyte reference ranges.

• dx_explain_lab_test: Patient-friendly explanations of lab tests (grade 6 reading level).

• dx_symptom_to_codes: Symptom text to candidate ICD-10-CM documentation codes.

📚 Module 4: Medical Research (research)

• research_search_pubmed: PubMed literature search with publication type filters.

• research_get_article: Citation details, DOI, MeSH terms, and parsed XML abstract for a PMID.

• research_search_trials: ClinicalTrials.gov search with status and phase filters.

• research_get_trial_details: Detailed trial protocol and eligibility criteria for an NCT ID.

• research_summarize_evidence: Evidence digest batch for LLM summarization.

📋 Module 5: FHIR Patient Records (fhir)

• fhir_search_patients: Search synthetic FHIR R4 patients.

• fhir_get_patient: Patient demographics and MRN.

• fhir_get_conditions: Active problem list.

• fhir_get_medications: Active medication requests.

• fhir_get_observations: Vital signs and lab history.

• fhir_get_encounters: Visit timeline.

• fhir_get_patient_summary: Aggregated clinical summary bundle (feeds the patient-summary widget).

🤝 Module 6: Care Coordination (care)

• care_generate_handoff: Standardized SBAR or narrative clinical handoff summary.

• care_reconcile_medications: 3-column medication reconciliation diff identifying added, removed, and duplicate-risk drugs.

• care_draft_referral: Specialist referral consultation request note.

• care_find_guidelines: PubMed clinical practice guidelines.

• care_appointment_prep: Patient visit preparation checklists.

3. System Architecture & Gateway Layer

┌──────────────────────────────────────────────────────────────────────────┐
│ MCP CLIENTS                      (NitroStudio / Claude Desktop / curl)    │
└──────────────────────────────────────┬───────────────────────────────────┘
                                       │  STDIO (dev) · HTTP+SSE (prod)
┌──────────────────────────────────────▼───────────────────────────────────┐
│ GATEWAY LAYER                                                            │
│   EmergencyDetectionGuard -> ApiKeyGuard -> ScopeGuard                   │
│   -> @RateLimit -> TrimPipe -> TOOL HANDLER                              │
│   -> ClinicalSafetyInterceptor -> AuditLogInterceptor -> TimingInterceptor │
│   -> ClinicalExceptionFilter                                             │
└──────────────────────────────────────┬───────────────────────────────────┘
                                       │
┌──────────────────────────────────────▼───────────────────────────────────┐
│ FEATURE MODULES                                                          │
│   triage · drugs · diagnostics · research · fhir · care · core           │
└──────────────────────────────────────┬───────────────────────────────────┘
                                       │ HTTPS
┌──────────────────────────────────────▼───────────────────────────────────┐
│ LIVE UPSTREAM APIS                                                       │
│   RxNorm · openFDA · PubMed · ClinicalTrials.gov · HAPI FHIR · ClinTables    │
└──────────────────────────────────────────────────────────────────────────┘

4. UI Widgets

Vitalis includes 6 Next.js frontend widgets registered in src/widgets/widget-manifest.json:

1. patient-summary (W5 ⭐ flagship): Aggregated patient EHR dashboard.

2. triage-result (W1): Urgency tier badges and red-flag chips.

3. drug-safety-report (W2): Severity-banded interaction grid and FDA evidence excerpts.

4. trial-list (W4): Clinical trial cards with status chips.

5. lab-result-card (W3): Quantitative reference-range card.

6. med-reconciliation (W6): 3-column medication diff view.

5. Getting Started & Setup

Prerequisites

• Node.js >= 18.0.0

• npm / npx

Installation & Environment

git clone https://github.com/anshu/my-mcp-server.git
cd my-mcp-server
npm install

Configure .env environment variables (see .env.example):

API_KEY_CLINICIAN=vk_live_clinician_demo_key_01
API_KEY_READONLY=vk_live_readonly_demo_key_02
API_KEY_ADMIN=vk_live_admin_demo_key_03
VITALIS_ALLOW_ANONYMOUS_DEMO=true

Running Locally

# Development mode
npm run dev

# Build production bundle
npm run build

# Start production server
npm start

Testing

# Run unit & integration test suite
npm test

6. Responsible-Use & Clinical Disclaimer

IMPORTANT DISCLAIMER: Vitalis is developer infrastructure designed for clinical decision support research and hackathon demonstration purposes only. It is not a licensed medical device and is not intended for primary medical diagnosis, treatment, or acute care triage without human physician oversight. All FHIR patient records provided by the server are 100% synthetic (Synthea generator) and contain zero protected health information (PHI). Always consult a qualified healthcare professional in medical emergencies.