# Healthy Eating Index

**Canonical:** https://apis.io/providers/healthy-eating-index/  
**Website:** https://www.fns.usda.gov/cnpp/healthy-eating-index-hei  
**APIs profiled:** 0

The Healthy Eating Index (HEI) is a measure of diet quality, scored 0 to 100, that assesses how well a set of foods aligns with the Dietary Guidelines for Americans. It is not a company: it is a federal research instrument developed by USDA's Center for Nutrition Policy and Promotion with the National Cancer Institute, which publish its scoring standards, SAS code and population scores as web pages, PDFs and ZIP downloads, with no API.

## Kin Score — 11.3 / 100 (emerging)

Scored 2026-11-13 under rubric 0.28.0.

| Facet | Score |
|---|---|
| Discoverability | 46.4 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 4.8 |
| Developer Ergonomics | 28.6 |
| Access Clarity | 8.5 |

Regulatory layer — **Government & Public Sector**: 3.9 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| 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).

## Security (1)

- **Healthy Eating Index Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Nutrition, Diet Quality, Public Health, Federal Government, Research, Dietary Guidelines

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