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ProAuth is an OpenID Connect identity provider solution for enterprise applications by 4tecture.

4tecture GmbH was founded by experienced software experts. From the first version to today’s current .NET platform, our employees have accompanied and realized software projects for the Microsoft Windows platform in various industries. Whether you need Application Lifecycle Management, software architecture consulting or .NET and Azure DevOps training, we are your ideal partner. We also support you in the development of customized software solutions and products, including managed nearshore development options. We look forward to supporting you with your .NET projects.

ProAuth grew out of enterprise projects where identity could not depend on a public cloud tenant, per-user pricing, or customer-specific application releases. The platform keeps OpenID Connect and OAuth trust stable while tenants, directories, policies, user stores, and branded login journeys change at runtime.

The product is developed for software vendors and enterprise teams that need to operate identity in their own infrastructure, including Kubernetes, private cloud, on-premises, and offline environments. Its architecture reflects 4tecture’s focus on durable .NET systems, automated delivery, observability, and long-term operational ownership.