Scalekit IdP-Initiated SSO is an authentication solution that enables one-click login from identity providers (IdPs) while maintaining security standards. The product automatically converts IdP-initiated SAML requests into secure service provider (SP) flows, addressing common vulnerabilities associated with traditional IdP-initiated authentication. The solution replaces vulnerable URL parameters with signed JSON Web Tokens (JWTs) to prevent SAML assertion theft and other security risks. It allows enterprise users to access applications directly from their identity providers without requiring them to navigate to the application login screen first. The product is designed to work with existing user management systems without requiring migration. It supports SAML-based SSO connections and can be integrated into applications through SDKs and REST APIs. The solution includes authentication logging capabilities and webhook support for implementing custom workflows. Scalekit IdP-Initiated SSO is part of a broader authentication platform that includes modular authentication components, user and organization management, and security controls. The product is intended for B2B applications that need to support enterprise SSO requirements while maintaining security compliance.