Standard License
The Standard License is tailored for organizations intending to self-host Duende IdentityServer within their own infrastructure. Key aspects include:​

• Subscription Term: This license is an annual subscription, requiring renewal each year to maintain production use.​
• Deployment Scope: Permits deployment on any hardware owned or rented by the licensee.​
• Support and Updates: Includes standard developer support and access to updates during the subscription period.​
• Redistribution Restriction: Does not allow redistribution of IdentityServer as part of a product or service to third parties.​

This license is ideal for organizations managing IdentityServer within their own environments without the need to embed it into products distributed to external customers.

Redistribution License
Designed for Independent Software Vendors (ISVs) and organizations that wish to embed and redistribute Duende IdentityServer within their own products or solutions provided to customers. Key features include:​

• Subscription Term: This license operates on an annual subscription basis, necessitating yearly renewal for continued use.​
• Product Association: The license is tied to a specific product developed by the licensee.​
• Deployment Flexibility: Allows both self-hosting (e.g., Software as a Service) and redistribution to a customer’s on-premises or cloud infrastructure.​
• Client Application Options: Available for a fixed number of client applications or an unlimited number, offering flexibility based on needs.​
• Support and Updates: Includes support and updates as specified in the license agreement during the subscription term.​
• Instance Flexibility: Permits unlimited instances both internally and on customers' premises.​
• Issuer Limitation: Each instance allows a single issuer; multiple host names and active issuers require separate instances or an Enterprise license.​

This license is suitable for organizations that need to integrate IdentityServer into their own products and distribute them to external customers.​