Overview
The Healthcare.gov API provides access to educational content about the US Health Insurance Marketplace, including articles, glossary terms, and plan information in JSON format. No API key is required, and the data is maintained by the US federal government. It is a good starting point for developers building health insurance information tools or educational resources for Americans.
Beginner Tip
Append .json to any Healthcare.gov page URL to retrieve that page's content as structured JSON — for example, https://www.healthcare.gov/glossary/deductible.json returns the full article as machine-readable data.
Measurement Record
What actually happened when we called this API from our own infrastructure. Every value below was recorded by the request, not copied from the provider's documentation.
- Request
- GET https://www.healthcare.gov/api/glossary.json
- Result
- HTTP 200 · application/json · 117,301 bytes · compressed
- Response time
- 47 ms (median of 3) · fastest 44 ms
- Transport
- TLSv1.3 · TLS_AES_256_GCM_SHA384 · certificate issued by DigiCert Inc
- Browser CORS
- No Access-Control-Allow-Origin header — call it from a server, not the browser
- Recorded
- 2026-08-10
Fields Returned
Top-level fields present in the response we captured, with the type and value we actually received.
| Field | Type | Value received |
|---|---|---|
| glossary | array | [1 item] |
Captured Response
Captured from a real request to https://www.healthcare.gov/api/glossary.json on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.
{
"glossary": [
{
"date": "2022-04-22 00:00:00 +0000",
"url": "/glossary/affordability-exemption",
"content": "<p>An exemption that’s needed when applying for Catastrophic coverage for people 30 years or older whose coverage is unaffordable. Affordability exemptions a…",
"tags": [
"glossary"
],
"title": "Affordability exemption",
"categories": [
"glossary"
],
"lang": "en",
"layout": "glossary-word"
}
]
} Field Reference
title Title of the article or glossary term. content HTML-formatted body content of the article. url Canonical URL of the content on Healthcare.gov. categories List of category tags associated with the content. lang Language code of the content (e.g., en for English, es for Spanish). Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://www.healthcare.gov/api/glossary.json";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
How This API Fails
We deliberately sent this API a broken request and recorded exactly what came back on 2026-08-10. Knowing the shape of an error before you hit it makes error handling much easier to write.
Returned an HTML error page rather than JSON — worth knowing if your client assumes every response can be parsed as JSON.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Measured Score Breakdown
Live HTTP request to the API endpoint
Fully tested on Aug 10, 2026
Technical Specifications
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