Felt — The care stack for apps.

For product & engineering teams

Clinical infrastructure for consumer apps. One SDK, your brand, your data model — HIPAA, licensing, and the provider network behind the API.

Contact Sales View documentation

Your App, Your Offering

Care Orchestration

Health, Hardware and API Integrations

Security & Compliance

App-Aligned User Experience

Compound Pharmacy & Supplements

Varied Provider Specialties

import { Felt } from '@felt/sdk'import { theme } from './config' const app = new Felt({ brand: "yourco", theme: customTheme, logo: "./assets/logo.svg", favicon: "./assets/fav.png", states: ["CA","NY","TX","FL", "WA","OR","CO","IL"], onboard: async (user) => { await user.verify() await user.consent() return user.profile }, features: { telehealth: true, pharmacy: true, messaging: "async", scheduling: true, labs: true, imaging: false, }, compliance: { hipaa: "enforced", baa: "auto", }, analytics: "full", locale: "en-US",}) app.mount('#care-root')app.analytics.init()app.router.sync()console.log('SDK ready') // v2.4.1 — production// mounted in 42ms

const journey = felt.care .journey.start({ flow: "standard", steps: [ { name: "intake", type: "form" }, { name: "triage", type: "ai", model: "felt-dx" }, { name: "visit", type: "async" }, { name: "labs", type: "order" }, { name: "rx", type: "dispense" }, { name: "follow_up", type: "scheduled", delay: "7d" }, ], timeout: '48h', escalation: 'auto', fallback: "transfer", retry: 3, sla: "30min", }) journey.on('step', log)journey.on('complete', notify)journey.on('timeout', escalate) // active journeys: 142// avg completion: 22min// SLA compliance: 98.7%// queue depth: 8

felt.devices.onReading( (reading) => { const vitals = { hr: reading.heartRate, spo2: reading.oxygen, temp: reading.temp, bp: reading.pressure, glucose: reading.glucose, weight: reading.scale, sleep: reading.sleep, } store.ingest(vitals) timeline.append(vitals) ehr.sync(vitals) if (vitals.hr > 120) { triage.escalate({ priority: 'urgent', data: vitals, notify: 'provider', sla: '5min' }) } if (vitals.spo2 < 92) alert.critical(vitals) }) // BLE + WiFi + REST + FHIR// 12 endpoints active// latency: 12ms p99// uptime: 99.99%

// compliance middlewarefelt.use(compliance({ hipaa: "enforced", encryption: { atRest: "AES-256", inFlight: "TLS-1.3", keyRotation: "90d", certPin: true, }, baa: "auto-sign", audit: { mode: "continuous", retention: "7y", alerts: "realtime", export: "pdf", }, states: 50, phi: "auto-redact", logging: "immutable", access: "rbac", mfa: "enforced", sessions: { timeout: "15min", refresh: "sliding", concurrent: 1, }, dataResidency: "us",})) // all gates passed// last audit: 2h ago// 0 violations// next scan: 22min

const intake = felt.forms .create({ type: "symptom_check", style: "branded", fields: [ 'symptoms', 'severity', 'duration', 'medications', 'allergies', 'history', 'vitals', 'photos' ], validation: 'strict', autosave: true, submit: async (data) => { const result = await triage.start(data) if (result.urgent) nav.to('/visit') else if (result.labs) nav.to('/labs') else nav.to('/queue') }, onError: (e) => { log.warn(e) toast.show('Retry') } }) intake.render('#form')intake.prefill(session)// form loaded: 48ms// fields: 8 · valid

await felt.rx.dispense({ patient: session.id, provider: visit.doc, pharmacy: 'compound', items: [ { drug: 'semaglutide', dose: 0.5, unit: 'mg', supply: 30, refill: 3 }, { drug: 'vitamin_d3', dose: 5000, unit: 'IU', supply: 60 }, { drug: 'prenatal', refill: 'monthly' }, { drug: 'biotin', dose: 10000, unit: 'mcg' }, { drug: 'magnesium', dose: 400, unit: 'mg' }, ], shipping: '2-day', tracking: true, notify: ['email','sms'], insurance: session.plan, copay: 'auto-calc',}) // Rx #0238 — dispensed// shipment: in transit// ETA: 2 days// copay: $12.00

const roster = await felt .providers.query({ state: session.state, type: "async", specialties: [ "pediatrics", "urgent_care", "dermatology", "mental_health", "glp1", "weight_mgmt", "primary_care", "womens_health", "endocrinology" ], licensed: true, available: true, credential: "verified", maxWait: '15min', }) roster.forEach(doc => { schedule.add(doc) notify.queue(doc.id) metrics.track('match')}) const available = roster .filter(d => d.online) .sort((a,b) => a.wait - b.wait) console.log(`${roster.length} matched`)// 58 providers online// avg response: 3.2min// coverage: 50 states

In production

2partners live

450Kmonthly users

<5 minto a doctor

50states covered

99.99%uptime

2partners live

450Kmonthly users

<5 minto a doctor

50states covered

99.99%uptime

The gap

Competitors sell the network.
You need infrastructure.

Product and engineering teams at consumer companies get stuck between an 18-month healthcare build and a white-label clinic that wasn't built for your app.

Build it yourselfmo 1 → mo 18

50-state licensing and credentialing
HIPAA counsel, BAA, and audit programs
Fee-splitting and MSO legal structure
Provider network contracts and pharmacy ops
Mobile SDK + clinical UX from scratch

Becomes a healthcare company — not a product company.

Buy a clinic brandtheir UX · their data

Their brand, not yours — embedded clinic UI
Opaque data model; limited webhook surface
Retention and export on their terms
Detection content tied to their roadmap
Hard to pass security review for hardware partners

Ships care — not a developer surface your team owns.

Felt is the third path: clinical capacity behind your SDK, with contracts and compliance built for teams that ship consumer hardware and apps.

SDK

Developer tools first. Clinical capacity behind the API.

It all starts with Felt.configure(brand: "your-app") — one integration surface for product and engineering. The provider network, pharmacy, and compliance layers are abstracted, not your problem to assemble.

Init payload

Worst-case 0.25s init. Background-thread safe.

2×

Native iOS + Android

Swift + Kotlin. Web layer updates OTA, no SDK release.

1env

White-label by env

BRAND=your-app swaps copy, theme, events.

0cookies

Typed params

Symptoms, biometrics, account ID — all structured.

View the SDK reference

Data & privacy

Your users. Your data model.
Our compliance burden.

Wearables and consumer apps fail security review when the clinical vendor owns the UX and the export path. Felt is built so product teams keep custody of the experience — and the integration contract.

Your brand, your app shell. White-label by environment — Felt stays invisible to end users.
Structured clinical payloads. Biometrics, symptoms, and account IDs pass as typed params — not ad-hoc forms.
Partner-controlled retention. Audit logs and clinical records under your BAA; 7-year retention aligned to HIPAA.
Webhook-first integrations. Visit lifecycle, Rx status, and triage events — built for your orchestration layer.

Security & data handling

integrations/webhooks.ts

// felt.data — partner boundary
webhooks.on('visit.completed', async (e) => {
  await yourApp.careHistory.append({
    userId: e.accountId,
    summary: e.clinicalNote,
    // PHI stays in your tenancy
  });
});

Deployment pack

What wearables teams ask before they sign.

Consumer companies need contract and compliance detail upfront — not after a six-month legal review. Felt ships the paperwork and licensing model so engineering can integrate in parallel.

BAA

Signed on integration

Business Associate Agreement executed before production traffic — every partner, every clinician.

MSO

Fee-splitting structure included

License structure designed with healthcare counsel so consumer brands don't inherit regulatory surface alone.

State licensing carried by Felt

Provider network credentialing and boards — not a hiring project for your eng team.

Encryption

Shared compliance posture

AES-256 at rest, TLS 1.3 — mapped for hardware and app store security questionnaires.

// BAA template, subprocessors, and security appendix available in partner docs

Full build vs. buy comparison

Build vs. buy

Same goal.
Very different Gantt chart.

The deployment pack your legal and security teams need — spelled out row by row, not buried in a sales deck.

With Feltday 0 · live

One integration

HIPAA BAA · Included
Clinical licensing (50 states) · Provider network carries it
Doctor network · Multi-specialty, credentialed
Prescription fulfillment · Handled
Fee-splitting isolation · License structure included
Mobile SDK · iOS + Android, <300B

The 18-month buildmo 1 → mo 18

Eighteen months

HIPAA BAA · Legal counsel + months
Clinical licensing (50 states) · Hire and credential per state
Doctor network · Partner negotiations, vetting, contracts
Prescription fulfillment · Pharmacy integrations, DEA, boards
Fee-splitting isolation · Specialized healthcare attorney
Mobile SDK · Build and maintain in-house

Every partner we work with tried to build it first. Here's what Felt replaces.

Compliance · shifted

No new HIPAA.

The regulatory surface of running a healthcare company is real. Felt carries it — signed on integration, every partner, every clinician.

HIPAA + BAA·50-state licensing·AES-256 · TLS 1.3

For product teams

Built for teams shipping consumer-grade care.

Fitness, wearables, sleep, and nursery devices share the same buying motion: engineering needs APIs, product needs brand control, legal needs contracts on day one.

Wearables solution overview

Felt executes a BAA with your company before production. Clinical records and audit obligations are structured so your legal team can map subprocessors in one pass — not vendor by vendor.

Yes. Felt.configure(brand) drives white-label copy, theme, and flows inside your iOS/Android app. End users should experience your product — not a third-party clinic.

You control what crosses into clinical intake via typed SDK params — biometrics, symptoms, account IDs. We document recommended minimums for triage without forcing a one-size payload.

Partners typically parallelize eng integration with our BAA and data-flow appendix. Clinical licensing is carried by Felt's network — not a blocker you credential state by state.

VP Product · consumer wearables

Yousaveme18 months.

VP of Product, consumer wearables

After a Felt integration call · Apr 2026

In production · real numbers

Real partners. Real patients. Real numbers.

monthly users under care

< 5 min

time to doctor

50 / 50

states covered

99.99%

uptime

7-year

audit retention

monthly users under care

< 5 min

time to doctor

50 / 50

states covered

99.99%

uptime

7-year

audit retention

Across live partner deployments · 12-month trailing window · multi-specialty.

Clinical capacity · API

Licensed care.
Abstracted behind your SDK.

Multi-specialty doctors, pediatrics, and pharmacy fulfillment run on Felt's network — credentialed in all 50 states, routed under your brand. You integrate once; we operate what competitors put on the homepage.

Adult & urgent care, 24/7. Async visits, prescribing, triage — exposed via the same SDK surface.
Pediatrics, on demand. Built for connected devices and family apps — not a separate clinic SKU.
Subscription Rx. GLP-1s, supplements, follow-ups through licensed pharmacy partners.
AI-assisted intake. Biometrics from your app become structured case notes for clinicians.

Clinical API overview

care.router · us-east

999ms · all routes online

Pediatrics · 24/7Board-certified · Infant + Child · 50 states

online● online

Adult + Urgent CareLicensed physicians · Rx · 50 states + DC

online● online

Subscription RxGLP-1s · Supplements · Pharmacy network

online● online

Bring your ownRoute through an existing clinical partner, or use Felt’s default stack.

byo.provider● config

$felt.partners.request('access')

Run it

// we can't tell you who we work with. that's the point.

The care journey · 04:48 median

From sick event to prescription — without leaving your app.

SDK init

Partner app opens. Felt initializes with device context and account ID.