Developer Platform

Build on the intelligence layer.

Carezhen exposes the same APIs its own solutions are built on — so your team can extend the platform, integrate proprietary systems, and ship into healthcare orgs on day one.

Quickstart

Send a message. Book an appointment. Sync a patient.

Everything Carezhen does internally is a public API. Ship in hours, not quarters.

import { Carezhen } from "@carezhen/sdk";

const cz = new Carezhen({ apiKey: process.env.CAREZHEN_KEY });

// 1. Sync a patient from any EHR
const patient = await cz.patients.upsert({
  externalId: "athena:88213",
  firstName: "Priya", lastName: "Rao",
  phone: "+1-415-555-0132",
});

// 2. Book across any site or provider
const appt = await cz.appointments.book({
  patientId: patient.id,
  providerId: "prov_9f2",
  slot: "2026-07-14T10:30:00-07:00",
});

// 3. Orchestrate the follow-up journey
await cz.journeys.trigger("post_visit_review", { patientId: patient.id });
What's inside

A first-class platform for healthcare builders.

API Documentation

Reference for every endpoint, event, and object. Versioned and searchable.

SDKs

First-class SDKs for TypeScript, Python, and Java — with typed models for every resource.

Webhooks

Signed, at-least-once delivery for every platform event, with replay and retry.

Sandbox

Isolated environments with synthetic patient data — build and test without a BAA.

Marketplace

Publish integrations and extensions to Carezhen customers across every industry.

OAuth 2.0

Standard OAuth flows with fine-grained scopes and per-organization tokens.

Developer Portal

One place to manage apps, keys, environments, logs, quotas, and telemetry.

Enterprise Demo

Ready to modernize your healthcare organization — without replacing your EHR?

Book a personalized demo today. We'll map Carezhen to your EHR, workflows, and priorities in under 45 minutes.