Defense Health Agency

The Defense Health Agency (DHA) is a joint, integrated combat support agency that enables the Army, Navy, and Air Force medical services to provide a medically ready force and ready medical force to combatant commands. DHA operates the Military Health System (MHS), MHS Genesis electronic health record, the Military Health System Data Repository (MDR), and the Enterprise Intelligence and Data Solutions (EIDS) program. Data exchange inside MHS Genesis uses SMART on FHIR APIs, but DHA does not currently publish a general-purpose public developer API, a developer portal, or any machine-readable API contract. What it does publish is human-readable interface documentation: 32 Interface Control Documents for MHS Data Repository feeds, plus MDR and M2 data dictionaries and access guides, all distributed as .DOCX and .PDF through the Health.mil Reference Center.

Defense Health Agency is listed with 1 API on the APIs.io network: MHS Genesis SMART on FHIR API. Tagged areas include Federal Government, Defense, Department of Defense, Health, and Military Health System.

Defense Health Agency’s developer surface includes engineering blog and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

19.1/100 emerging ▬ flat Agent 16/100 agent aware Front door AI 1/6 silent Heartbeat 75/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 API

Federal Government Defense Department of Defense HealthMilitary Health SystemMHS GenesisFHIR Health IT

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 19.1/100 · emerging

Contract Quality 5.1 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 24.0 — up to +19.0 composite points
Access Clarity scores 10.5 — up to +17.9 composite points
Developer Ergonomics scores 11.9 — up to +17.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/defense-health-agency/apis.yml: open an issue on github.com/api-evangelist/defense-health-agency to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
US Federal API Programs (api.data.gov, Login.gov, GSA MAS, FedRAMP)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

HL7 FHIR

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

MHS Genesis SMART on FHIR API

MHS Genesis, the Department of Defense electronic health record built on Oracle Health (Cerner), exposes a SMART on FHIR interface for authorized clinical applications to read a...

Open Collections 1

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

API Collection

OPEN COLLECTION

Defense Health Agency API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Defense Health Agency Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Defense Health Agency Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Defense Health Agency Finops

FINOPS

Security Posture 1

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

Defense Health Agency Domain Security

TLSv1.2 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

FinOps

FinOps

Plans

Plans

PrivacyPolicy

PrivacyPolicy

Company 6

The organization behind the API

LinkedIn

Website

About

Newsroom

Blog

BlogRSS

Other 3

Properties that don't map to a standard resource type

x-Publications

x-Publications

x-InterfaceControlDocuments

x-InterfaceControlDocuments

x-TechnologyPrograms

x-TechnologyPrograms

Source (apis.yml)

aid: defense-health-agency
name: Defense Health Agency
url: https://raw.githubusercontent.com/api-evangelist/defense-health-agency/refs/heads/main/apis.yml
description: 'The Defense Health Agency (DHA) is a joint, integrated combat support agency that enables the Army, Navy, and
  Air Force medical services to provide a medically ready force and ready medical force to combatant commands. DHA operates
  the Military Health System (MHS), MHS Genesis electronic health record, the Military Health System Data Repository (MDR),
  and the Enterprise Intelligence and Data Solutions (EIDS) program. Data exchange inside MHS Genesis uses SMART on FHIR APIs,
  but DHA does not currently publish a general-purpose public developer API, a developer portal, or any machine-readable API
  contract. What it does publish is human-readable interface documentation: 32 Interface Control Documents for MHS Data Repository
  feeds, plus MDR and M2 data dictionaries and access guides, all distributed as .DOCX and .PDF through the Health.mil Reference
  Center.'
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  probe_state: unreadable
  source:
  - finops
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/defense-health-agency.png
access: 3rd-Party
position: Consuming
specificationVersion: '0.23'
kind: government
tags:
- Federal Government
- Defense
- Department of Defense
- Health
- Military Health System
- MHS Genesis
- FHIR
- Health IT
tags_raw:
- Federal Government
- Defense
- Department of Defense
- Health
- Military Health System
- MHS Genesis
- FHIR
- Health IT
- Federal-Government
created: '2024-12-03'
modified: '2026-09-07'
apis:
- aid: defense-health-agency:mhs-genesis-smart-on-fhir
  name: MHS Genesis SMART on FHIR API
  description: MHS Genesis, the Department of Defense electronic health record built on Oracle Health (Cerner), exposes a
    SMART on FHIR interface for authorized clinical applications to read and write patient data. Access is restricted to vetted
    application partners and DoD beneficiaries.
  humanURL: https://www.health.mil/Military-Health-Topics/Technology/MHS-GENESIS
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/defense-health-agency.png
  tags:
  - FHIR
  - SMART on FHIR
  - Electronic Health Record
  - MHS Genesis
  properties:
  - type: Documentation
    url: https://www.health.mil/Military-Health-Topics/Technology/MHS-GENESIS
common:
- type: FinOps
  url: finops/defense-health-agency-finops.yml
- type: DomainSecurity
  url: security/defense-health-agency-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/defense-health-agency
- type: Website
  url: https://www.health.mil
- type: About
  url: https://www.dha.mil/About-DHA
- type: x-Publications
  url: https://www.health.mil/Reference-Center
- type: Newsroom
  url: https://www.health.mil/News
- type: Conformance
  url: conformance/defense-health-agency-conformance.yml
- type: LLMsTxt
  url: llms/defense-health-agency-llms.txt
- type: Plans
  url: plans/defense-health-agency-plans-pricing.yml
- type: RateLimits
  url: rate-limits/defense-health-agency-rate-limits.yml
- type: Blog
  url: https://www.health.mil/News/Articles
- type: BlogRSS
  url: https://health.mil/RSS/Articles
- type: PrivacyPolicy
  url: https://dpcld.defense.gov/Privacy.aspx
- type: x-InterfaceControlDocuments
  url: https://health.mil/Military-Health-Topics/Technology/Support-Areas/MDR-M2-ICD-Functional-References-and-Specification-Documents/Interface-Control-Documents-Functional-References-and-Specifications
- type: x-TechnologyPrograms
  url: https://www.health.mil/Military-Health-Topics/Technology
x-enrichment:
  date: '2026-09-07'
  status: minimal
  artifacts_added: 3
  pass: local-v3
x-coverage:
  state: unreadable
  reason: pdf-only-docs
  detail: DHA's only published interface reference is a set of 32 Interface Control Documents for MHS Data Repository feeds,
    served as .DOCX and .PDF from the Health.mil Reference Center, with no OpenAPI, FHIR CapabilityStatement, WSDL or .proto
    anywhere on health.mil, dha.mil or tricare.mil, and the developer request path behind them (info.health.mil) is served
    under a DoD-internal PKI certificate that no public client can complete a TLS handshake with.
  evidence:
  - url: https://health.mil/Military-Health-Topics/Technology/Support-Areas/MDR-M2-ICD-Functional-References-and-Specification-Documents/Interface-Control-Documents-Functional-References-and-Specifications
    status: 200
  - url: https://www.health.mil/Reference-Center/Technical-Documents/2015/11/15/ICD-TED-I
    status: 200
  - url: https://www.health.mil/.well-known/api-catalog
    status: 404
  - url: https://www.health.mil/llms.txt
    status: 404
  - url: https://info.health.mil/apps/HIT/services/SitePages/escMenu.aspx
    status: 0
  checked: '2026-09-07'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Defense Health Agency API — frequently asked questions

Does Defense Health Agency have an API?

Yes. APIs.io lists 1 API from Defense Health Agency, including MHS Genesis SMART on FHIR API.

Is there an OpenAPI specification for the Defense Health Agency API?

Yes. APIs.io indexes 1 OpenAPI specification for Defense Health Agency, each linked for download from this page.

Is the Defense Health Agency API ready for AI agents?

Defense Health Agency has a Kin Score of 19.1 out of 100 (emerging) and an Agent Readiness score of 15.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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