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Oracle Health (Cerner)

Oracle Health, formerly Cerner, builds and operates Millennium — one of the two dominant electronic health record platforms in United States hospitals and health systems. Cerner was acquired by Oracle in June 2022 and its developer program now runs as the Oracle Health Developer Program. The public developer surface is HL7 FHIR R4: a multi-tenant, US Core-conformant FHIR server that serves a live CapabilityStatement at /metadata and a live SMART on FHIR discovery document at /.well-known/smart-configuration, advertising 303 OAuth scopes across patient, user and system personas in both SMART v1 and SMART v2 granular forms. It supports SMART App Launch (EHR and standalone), SMART Backend Services with private_key_jwt, FHIR Bulk Data Access export, and — unusually — an open, unauthenticated, read-only endpoint that serves real sandbox data with no registration at all. Alongside FHIR it operates proprietary Millennium EHR APIs, HL7 v2 messaging through Cerner Open Interface, and the CareAware device and integration platform. There is no OpenAPI, no GraphQL endpoint, no MCP server, no agent card, no published pricing, no published rate limits, no status page and no first-party SDK for the FHIR API.

agent ready

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score
travel_explore apis.io index code GitHub sourcepublic Website

API Evangelist profiles Oracle Health (Cerner) the way a machine reads it — 75 machine-readable artifacts across 54 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Oracle Health (Cerner) scores 48.4/100 (developing), with a separate agent-readiness read of 29/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.

Kin Score Kin Score How this is scored →
scored 2026-09-10 · rubric v0.20.0
Composite quality — 48.4/100 · developing
Contract Quality 6.6 / 25
Developer Ergonomics 13.7 / 20
Access Clarity 8.9 / 20
Operational Transparency 2.4 / 13
Contract Governance 2.2 / 12
Discoverability 5.7 / 10
Regulatory · Health 12.4 / 15
Agent readiness — 29/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract derived 2.5 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth negotiable 7.5 / 10
Idempotency 0 / 9
Stable Error Semantics documented 4.0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling documented 3.5 / 7
Typed Event Surface 0 / 6
Agent Skills derived 1.3 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity documented 3.0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Oracle Health (Cerner) Kin Score — API readiness rating by API Evangelist

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</a>

More shapes, themes and sizes → · Score as JSON · How badges work

How we profile Oracle Health (Cerner)

Each block below is one kind of artifact we hold for Oracle Health (Cerner). For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 54

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

Oracle Health Millennium FHIR DSTU2 API

The Cerner Millennium DSTU2 FHIR API supports legacy SMART on FHIR applications and integrations with Meaningful Use 2015 CEHRT certification criteria, and remains available alo...

Oracle Health Code Console (Developer Portal)

The Oracle Health Code Console (formerly Cerner Code) is the developer portal used to register SMART on FHIR and system-level applications, configure redirect URIs and launch pa...

Cerner CareAware Integration APIs

Cerner CareAware provides device and third-party application integration APIs for medical device data capture, bi-directional HL7 v2 messaging, and workflow embedding into Mille...

Oracle Health SMART on FHIR App Launch

Oracle Health implements the SMART on FHIR App Launch framework (standalone and EHR-launch) with OpenID Connect identity tokens, enabling third-party clinician and patient-facin...

Cerner (Oracle Health) Capability API

FHIR server metadata and capability statements.

Cerner (Oracle Health) Condition API

Patient conditions and problem-list entries.

Cerner (Oracle Health) Definitions API

FHIR conformance definitions and operations.

Cerner (Oracle Health) Encounter API

Patient encounter records.

Cerner (Oracle Health) Generic API

Generic FHIR resource read/write operations.

Cerner (Oracle Health) Patient API

Patient demographics and identifiers.

Cerner (Oracle Health) Procedure API

Patient procedures.

Oracle Health (Cerner) Account API

FHIR R4 Account resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Allergy Intolerance API

FHIR R4 AllergyIntolerance resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Appointment API

FHIR R4 Appointment resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Basic API

FHIR R4 Basic resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Binary API

FHIR R4 Binary resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Capability Statement API

FHIR R4 CapabilityStatement resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Care Plan API

FHIR R4 CarePlan resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Care Team API

FHIR R4 CareTeam resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Charge Item API

FHIR R4 ChargeItem resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Communication API

FHIR R4 Communication resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Consent API

FHIR R4 Consent resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Coverage API

FHIR R4 Coverage resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Device API

FHIR R4 Device resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Diagnostic Report API

FHIR R4 DiagnosticReport resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Document Reference API

FHIR R4 DocumentReference resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Export API

Kick off a bulk export job.

Oracle Health (Cerner) Family Member History API

FHIR R4 FamilyMemberHistory resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Files API

Retrieve the download URLs for completed export files.

Oracle Health (Cerner) Goal API

FHIR R4 Goal resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Immunization API

FHIR R4 Immunization resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Insurance Plan API

FHIR R4 InsurancePlan resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Jobs API

Poll and cancel bulk export jobs.

Oracle Health (Cerner) Location API

FHIR R4 Location resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Media API

FHIR R4 Media resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Medication Administration API

FHIR R4 MedicationAdministration resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Medication Dispense API

FHIR R4 MedicationDispense resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Medication Request API

FHIR R4 MedicationRequest resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Nutrition Order API

FHIR R4 NutritionOrder resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Observation API

FHIR R4 Observation resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Operation Definition API

FHIR R4 OperationDefinition resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Organization API

FHIR R4 Organization resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Person API

FHIR R4 Person resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Practitioner API

FHIR R4 Practitioner resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Provenance API

FHIR R4 Provenance resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Questionnaire API

FHIR R4 Questionnaire resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Questionnaire Response API

FHIR R4 QuestionnaireResponse resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Related Person API

FHIR R4 RelatedPerson resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Schedule API

FHIR R4 Schedule resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Service Request API

FHIR R4 ServiceRequest resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Slot API

FHIR R4 Slot resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Specimen API

FHIR R4 Specimen resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) Structure Definition API

FHIR R4 StructureDefinition resource as implemented by Oracle Health Millennium Platform.

Oracle Health (Cerner) System API

System-level FHIR interactions: conformance metadata and batch.

Scroll within the panel for all 54 ·

Open Collections 9

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 Capability API

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 Capability Condition API

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 Capability Definitions API

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 Capability Encounter API

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 Capability Generic API

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 API

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 Capability Patient API

OPEN COLLECTION

Oracle Health Millennium Platform FHIR R4 Capability Procedure API

OPEN COLLECTION

Scroll within the panel for all 9 ·

Arazzo Workflows 3

Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.

Multi-step API workflows described with the Arazzo specification.

Cerner Oracle Health Clinical Resource Write-Back

Locate a patient, create a FHIR resource against that patient, then update it by id.

ARAZZO

Cerner Oracle Health Conformance Discovery

Read the server metadata and CapabilityStatement, then enumerate supported operations and structure definitions.

ARAZZO

Cerner Oracle Health SMART on FHIR Patient Retrieval

Discover server capabilities, locate a patient, then pull the patient's conditions, encounters, and procedures.

ARAZZO

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

Cerner (Oracle Health) GraphQL

Cerner Millennium, now operated as Oracle Health, exposes clinical and administrative data through HL7 FHIR R4 REST APIs. There is no native GraphQL endpoint offered by Oracle H...

GRAPHQL

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.

Published pricing tiers and plan structures.

Cerner Plans Pricing

0 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Cerner Rate Limits

0 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Cerner Finops

FINOPS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Cerner Authentication

oauth2/openIdConnect · 1 scheme

SECURITY

Cerner Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Cerner Trust Center

SOC 2, ISO 27001, PCI DSS, HIPAA, FIPS 140

SECURITY

Scopes 1

OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.

OAuth scopes governing access to this provider's APIs.

Cerner Scopes

303 scopes · authorizationCode/clientCredentials

303 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Cerner Agentic Access

11 operations · 3 acting

11 operations · 3 acting

AGENTIC

Resources

Every other property we hold for Oracle Health (Cerner) — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 4

Portal, sign-up, and the first successful call

CodeConsole
CodeConsole
 Sandbox
Sandbox
 DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted

Documentation 3

Reference material describing how the API behaves

APIReference
APIReference
 OpenAPI
OpenAPI
 Documentation
Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 WellKnown
WellKnown
 X-MCPServerCandidate
X-MCPServerCandidate
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conventions
Conventions
 DataModel
DataModel
 Components
Components
 Arazzo
Arazzo

Scroll within the panel for all 8 ·

Build 4

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 GitHubOrganization
GitHubOrganization
 Collections
Collections

Access & Security 5

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes
 Compliance
Compliance

Operate 3

Status, limits, changes, and where to get help

ChangeLog
ChangeLog
 RateLimits
RateLimits
 Support
Support

Commercial 4

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 Plans
Plans
 FinOps
FinOps
 TermsOfService
TermsOfService

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Other 7

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap
 ParentCompany
ParentCompany
 Corporate
Corporate
 Developer
Developer
 FHIR
FHIR
 OpenSource
OpenSource
 Overlay
Overlay

Scroll within the panel for all 7 ·

← All providers · Data indexed from github.com/api-evangelist/cerner · machine-readable index on apis.io

Where this information came from

This is an independent, third-party profile of Oracle Health (Cerner), published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
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