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HHS (US Department of Health and Human Services) website screenshot

HHS (US Department of Health and Human Services)

The US Department of Health and Human Services provides data APIs for health programs, public health datasets, grants data, and interoperability standards for health information. HHS operates a broad ecosystem of APIs spanning FDA drug and device data, grants opportunity search, health IT open data, HRSA health center locators, and public health content syndication through its agencies including FDA, HRSA, ONC, and ODPHP.

agent aware

Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.

Kin Score

API Evangelist profiles HHS (US Department of Health and Human Services) the way a machine reads it — 40 machine-readable artifacts across 21 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 — HHS (US Department of Health and Human Services) scores 43.5/100 (thin), with a separate agent-readiness read of 24/100 (agent aware). 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.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 43.5/100 · thin
Contract Quality 15.9 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 0.7 / 13
Governance 8.8 / 12
Discoverability 10.0 / 10
Regulatory · Health 4.6 / 15
Agent readiness — 24/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
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

How we profile HHS (US Department of Health and Human Services)

Each block below is one kind of artifact we hold for HHS (US Department of Health and Human Services). 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 21

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.

openFDA API

OpenFDA provides RESTful APIs and raw download access to high-value FDA public datasets including drug adverse events, drug labels, drug recalls, medical device 510(k) clearance...

MyHealthfinder API

The MyHealthfinder API (Version 4) allows developers to add evidence-based, plain language health content to their websites and applications. Content is available in English and...

ONC Health IT Open Data API

The ONC Health IT Open Data API provides access to open datasets published by the Office of the National Coordinator for Health Information Technology. Supports filtering by sta...

HRSA Health Center Data Web Service

The HRSA Health Center Data Web Service allows querying for federally qualified health centers by state, county, or ZIP code. A separate service provides access to Ryan White HI...

HealthData.gov Catalog API

The HealthData.gov Catalog API uses CKAN and provides machine-readable access to the HHS health data catalog. Developers can find newly added datasets, search the catalog, downl...

HHS (US Department of Health and Human Services) Agency v1 API

The Agency v1 API from HHS (US Department of Health and Human Services) — 1 operation(s) for agency v1.

HHS (US Department of Health and Human Services) Application Alpha API

The Application Alpha API from HHS (US Department of Health and Human Services) — 11 operation(s) for application alpha.

HHS (US Department of Health and Human Services) Award Recommendation Alpha API

The Award Recommendation Alpha API from HHS (US Department of Health and Human Services) — 11 operation(s) for award recommendation alpha.

HHS (US Department of Health and Human Services) CommonGrants Protocol API

CommonGrants-compliant API routes for searching opportunities to promote interoperability across grant systems. Learn more by visiting CommonGrants.org

HHS (US Department of Health and Human Services) Competition Alpha API

The Competition Alpha API from HHS (US Department of Health and Human Services) — 3 operation(s) for competition alpha.

HHS (US Department of Health and Human Services) Extract v1 API

The Extract v1 API from HHS (US Department of Health and Human Services) — 1 operation(s) for extract v1.

HHS (US Department of Health and Human Services) File v1 API

The File v1 API from HHS (US Department of Health and Human Services) — 1 operation(s) for file v1.

HHS (US Department of Health and Human Services) Form Alpha API

The Form Alpha API from HHS (US Department of Health and Human Services) — 2 operation(s) for form alpha.

HHS (US Department of Health and Human Services) Health API

The Health API from HHS (US Department of Health and Human Services) — 1 operation(s) for health.

HHS (US Department of Health and Human Services) Internal v1 - Admin Only API

The Internal v1 - Admin Only API from HHS (US Department of Health and Human Services) — 1 operation(s) for internal v1 - admin only.

HHS (US Department of Health and Human Services) LOCAL ONLY API

The LOCAL ONLY API from HHS (US Department of Health and Human Services) — 1 operation(s) for local only.

HHS (US Department of Health and Human Services) Opportunity v1 API

The Opportunity v1 API from HHS (US Department of Health and Human Services) — 4 operation(s) for opportunity v1.

HHS (US Department of Health and Human Services) Opportunity v1 - for Grantors API

The Opportunity v1 - for Grantors API from HHS (US Department of Health and Human Services) — 8 operation(s) for opportunity v1 - for grantors.

HHS (US Department of Health and Human Services) Organization v1 API

The Organization v1 API from HHS (US Department of Health and Human Services) — 10 operation(s) for organization v1.

HHS (US Department of Health and Human Services) User v1 - Internal Only API

The User v1 - Internal Only API from HHS (US Department of Health and Human Services) — 23 operation(s) for user v1 - internal only.

HHS (US Department of Health and Human Services) Workflow API

The Workflow API from HHS (US Department of Health and Human Services) — 4 operation(s) for workflow.

Scroll within the panel for all 21 ·

Pricing Plans 2

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Openfda

2 plans

PLANS

Simpler Grants

2 plans

PLANS

Rate Limits 2

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.

Openfda

0 limits

RATE LIMITS

Simpler Grants

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.

Overview

FINOPS

Spectral Rules 1

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

JSON Schema 6

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

AgencyV1Schema

8 properties

JSON SCHEMA

ErrorResponseSchema

5 properties

JSON SCHEMA

HealthcheckResponseSchema

3 properties

JSON SCHEMA

OpportunitySearchResponseV1Schema

5 properties

JSON SCHEMA

OpportunityV1Schema

16 properties

JSON SCHEMA

PaginationInfoSchema

5 properties

JSON SCHEMA

Examples 6

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Security Posture 1

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.

Hhs Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Every other property we hold for HHS (US Department of Health and Human Services) — 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.

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Other 2

Properties that don't map to a standard resource type

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