MedlinePlus API

MedlinePlus health information APIs from the National Library of Medicine. Provides consumer health information search (Web Service) and clinical code-based health content lookup (MedlinePlus Connect).

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Screenshot:
Screenshot of MedlinePlus API homepage
Base URL: https://api.nlm.nih.gov/lit/ctxp/v1/
Auth: none
Endpoints: 3
Reachable: yes
CORS: unknown
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:

100.0%

Uptime (7d)

605ms

Avg latency (7d)

5

Probes (7d)

Latency (7d)

Success Rate (7d)

Topics

GOVERNMENT, HEALTH

Endpoints

Method Path Summary Auth Last Status Latency
GET query Search MedlinePlus health topics none 200 640ms
GET service Connect clinical code lookup none 200 830ms
GET ws/query Search health topics none 200 526ms