Zus Health

Zus Health is a shared health-data platform that aggregates a patient's clinical history from external networks into the Zus Aggregated Profile (ZAP). It exposes a FHIR R4 (v4.0.1) REST API secured with OAuth2 Bearer tokens, Patient History APIs, document ingestion and retrieval, Zushooks webhooks, a GraphQL FHIR Query Service, and embeddable open-source React components.

Zus Health publishes 5 APIs on the APIs.io network, including Auth API, Documents API, FHIR API, and 2 more. Tagged areas include Health, FHIR, Interoperability, Patient Data, and Healthcare.

Zus Health’s developer surface includes authentication, documentation, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
33.1/100 thin ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreeSelf serve⚡ Free to try
5 APIs
HealthFHIRInteroperabilityPatient DataHealthcare

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 33.1/100 · thin
Contract Quality 14.6 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 34/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/zus: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

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

Zus Health Auth API

OAuth2 token issuance and exchange.

Zus Health Documents API

DocumentReference and Binary resources.

Zus Health FHIR API

General FHIR R4 resources.

Zus Health Patient API

FHIR R4 Patient resources.

Zus Health Patient History API

Jobs that retrieve external data into the Zus Aggregated Profile.

Open Collections 1

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

Zus Health API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Zus Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Zus Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Zus Finops

FINOPS

Security Posture 2

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

Zus Authentication

http · 1 scheme

SECURITY

Zus Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Zus Agentic Access

15 operations · 7 acting

15 operations · 7 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: zus
url: https://raw.githubusercontent.com/api-evangelist/zus/refs/heads/main/apis.yml
name: Zus Health
kind: company
description: Zus Health is a shared health-data platform that aggregates a patient's clinical history from external networks
  into the Zus Aggregated Profile (ZAP). It exposes a FHIR R4 (v4.0.1) REST API secured with OAuth2 Bearer tokens, Patient
  History APIs, document ingestion and retrieval, Zushooks webhooks, a GraphQL FHIR Query Service, and embeddable open-source
  React components.
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zus.png
tags:
- Health
- FHIR
- Interoperability
- Patient Data
- Healthcare
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.19'
apis:
- aid: zus:zus-auth-api
  name: Zus Health Auth API
  description: OAuth2 token issuance and exchange.
  humanURL: https://docs.zushealth.com/docs/fhir-api
  baseURL: https://api.zusapi.com/fhir
  tags:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/zus-auth-api-openapi.yml
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-api
  - type: APIReference
    url: https://docs.zushealth.com/reference/general
  - type: Documentation
    url: https://docs.zushealth.com/docs/accessing-the-zap
  - type: Documentation
    url: https://docs.zushealth.com/docs/zap-basics
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-rest-api-capabilities
  - type: Documentation
    url: https://docs.zushealth.com/docs/ingesting-documents
  - type: Documentation
    url: https://docs.zushealth.com/docs/zushooks
- aid: zus:zus-documents-api
  name: Zus Health Documents API
  description: DocumentReference and Binary resources.
  humanURL: https://docs.zushealth.com/docs/fhir-api
  baseURL: https://api.zusapi.com/fhir
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/zus-documents-api-openapi.yml
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-api
  - type: APIReference
    url: https://docs.zushealth.com/reference/general
  - type: Documentation
    url: https://docs.zushealth.com/docs/accessing-the-zap
  - type: Documentation
    url: https://docs.zushealth.com/docs/zap-basics
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-rest-api-capabilities
  - type: Documentation
    url: https://docs.zushealth.com/docs/ingesting-documents
  - type: Documentation
    url: https://docs.zushealth.com/docs/zushooks
- aid: zus:zus-fhir-api
  name: Zus Health FHIR API
  description: General FHIR R4 resources.
  humanURL: https://docs.zushealth.com/docs/fhir-api
  baseURL: https://api.zusapi.com/fhir
  tags:
  - FHIR
  properties:
  - type: OpenAPI
    url: openapi/zus-fhir-api-openapi.yml
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-api
  - type: APIReference
    url: https://docs.zushealth.com/reference/general
  - type: Documentation
    url: https://docs.zushealth.com/docs/accessing-the-zap
  - type: Documentation
    url: https://docs.zushealth.com/docs/zap-basics
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-rest-api-capabilities
  - type: Documentation
    url: https://docs.zushealth.com/docs/ingesting-documents
  - type: Documentation
    url: https://docs.zushealth.com/docs/zushooks
- aid: zus:zus-patient-api
  name: Zus Health Patient API
  description: FHIR R4 Patient resources.
  humanURL: https://docs.zushealth.com/docs/fhir-api
  baseURL: https://api.zusapi.com/fhir
  tags:
  - Patient
  properties:
  - type: OpenAPI
    url: openapi/zus-patient-api-openapi.yml
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-api
  - type: APIReference
    url: https://docs.zushealth.com/reference/general
  - type: Documentation
    url: https://docs.zushealth.com/docs/accessing-the-zap
  - type: Documentation
    url: https://docs.zushealth.com/docs/zap-basics
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-rest-api-capabilities
  - type: Documentation
    url: https://docs.zushealth.com/docs/ingesting-documents
  - type: Documentation
    url: https://docs.zushealth.com/docs/zushooks
- aid: zus:zus-patient-history-api
  name: Zus Health Patient History API
  description: Jobs that retrieve external data into the Zus Aggregated Profile.
  humanURL: https://docs.zushealth.com/docs/fhir-api
  baseURL: https://api.zusapi.com/fhir
  tags:
  - Patient History
  properties:
  - type: OpenAPI
    url: openapi/zus-patient-history-api-openapi.yml
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-api
  - type: APIReference
    url: https://docs.zushealth.com/reference/general
  - type: Documentation
    url: https://docs.zushealth.com/docs/accessing-the-zap
  - type: Documentation
    url: https://docs.zushealth.com/docs/zap-basics
  - type: Documentation
    url: https://docs.zushealth.com/docs/fhir-rest-api-capabilities
  - type: Documentation
    url: https://docs.zushealth.com/docs/ingesting-documents
  - type: Documentation
    url: https://docs.zushealth.com/docs/zushooks
common:
- type: AgenticAccess
  url: agentic-access/zus-agentic-access.yml
- type: DomainSecurity
  url: security/zus-domain-security.yml
- type: Authentication
  url: authentication/zus-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/zushealth
- type: Website
  url: https://zushealth.com
- type: Documentation
  url: https://docs.zushealth.com
- type: Plans
  url: plans/zus-plans-pricing.yml
- type: RateLimits
  url: rate-limits/zus-rate-limits.yml
- type: FinOps
  url: finops/zus-finops.yml
- url: https://zushealth.com/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com