# NHANES (CDC)

**Canonical:** https://apis.io/providers/nhanes/  
**Website:** https://www.cdc.gov/nchs/nhanes/  
**APIs profiled:** 1

The National Health and Nutrition Examination Survey (NHANES) is a program of the U.S. CDC National Center for Health Statistics that combines interviews, health exams and laboratory tests. Public-use microdata are released as SAS transport (.xpt) files on wwwn.cdc.gov, while summary prevalence and dietary estimates are published as Socrata datasets on data.cdc.gov, callable through the anonymous SODA REST interface.

## Kin Score — 24.4 / 100 (emerging)

Scored 2026-11-13 under rubric 0.28.0.

| Facet | Score |
|---|---|
| Discoverability | 62.5 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 33.3 |
| Developer Ergonomics | 45.2 |
| Access Clarity | 23.4 |

Regulatory layer — **Government & Public Sector**: 13.7 (matched via tags).

## Agent readiness — 5.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |
| MCP Tool Quality | na |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (1)

- **NHANES Open Data (SODA)** — NHANES summary estimates and footnotes published by NCHS as datasets on the CDC open data portal, each readable as JSON through the Socrata Open Data API at /resource/{dataset-i...

## Security (2)

- **NHANES (CDC) Authentication** — 1 scheme
- **NHANES (CDC) Domain Security** — TLSv1.3 · DNSSEC · DMARC

## Plans (1)

- **NHANES (CDC) Plans Pricing**

## Tags

Public Health, Health Statistics, Nutrition, Open Data, Survey Data, Government, CDC

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/nhanes/). Scores are computed from the provider's own public artifacts under a published rubric.