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).

Claim this API

Are you the operator of MedlinePlus API? Submit a claim to establish contact with us.

Report an Issue

Found something wrong with MedlinePlus API? Let us know about broken links, changed auth, deprecated endpoints, or other issues.
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