We welcome your feedback on our customer service form. Please use "UMLS REST API feedback" in your subject line.
Check out the Postman sample collection to help you get started using the UMLS REST API.
The UMLS REST API requires a UMLS account for the authentication described below. If you do not have a UMLS account, you may apply for a license on the UMLS Terminology Services (UTS) website.
For example, https://uts-ws.nlm.nih.gov/rest/content/current/CUI/C0009044?apiKey={{YOUR_API_KEY}}