Is there any expiration time for authentication tokens on API? 24 June 2025 03:04 Updated Yes, authentication tokens expire after 6 hours. You will need to re-authenticate to obtain a new token once it expires. Related articles How do I get Nivoda diamonds and gemstones on my website? How do I access the production environment for API? What are the different GraphQL API Nivoda offers? How to set up a new CSV feed and use your own FTP server to store the file? How can I get the image of a diamond/gemstone from API feeds?