MedlinePlus API

Provides consumer health information from the National Library of Medicine through keyword-based health topic search and clinical code lookups. The Connect service integrates with EHR systems via the HL7 Infobutton standard to deliver patient education content based on diagnosis, medication, and procedure codes.

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Screenshot:
Screenshot of MedlinePlus API homepage
Slug: medlineplus
Key: nih.gov:medlineplus-api
Base URL: https://api.nlm.nih.gov/lit/ctxp/v1/
Auth: none
Endpoints: 4
Reachable: yes
CORS: unknown
Tier: verified
Last checked: 2026-03-14 22:15:08.096212

Links

Homepage: https://medlineplus.gov/about/developers/
API Base: https://api.nlm.nih.gov/lit/ctxp/v1/
SDKs:

Topics

GOVERNMENT, HEALTH

Endpoints (4)

Path Summary Response Auth
Get patient education information by medical code ? —
query Search MedlinePlus health topics text/xml none
service Connect clinical code lookup application/atom+xml none
ws/query Search health topics text/xml none