PropelAuth

PropelAuth is a developer-focused platform that handles authentication and user management for business-to-business (B2B) software products. It provides the essential building blocks for sign-up, login, and account administration, specifically designed for applications where users belong to organizations, like companies or teams. Instead of building these systems from scratch, developers can integrate PropelAuth to get a secure, scalable auth layer up and running quickly.

The platform stands out by addressing the specific needs of B2B and AI-native companies. It offers two main paths: a fully managed cloud service and a 'Bring-Your-Own Auth' self-hosted option for teams with existing infrastructure. A key differentiator is its built-in support for authenticating non-human users, such as AI agents, which is increasingly important for modern applications. It includes pre-built UI components, role-based access control, and tools for managing organizations and memberships.

This tool is most beneficial for development teams building SaaS products that serve other businesses. It saves significant engineering time that would otherwise be spent on designing secure auth flows, session management, and admin panels. Real-world use cases include a startup launching a new analytics tool for e-commerce brands, a developer adding secure customer portals to an existing service, or an AI company needing to manage API access for both human users and automated agents.