Stack Auth (YC S24)Open-source Auth0/Clerk alternative

Stack: Open-Source Auth0 Alternative for Developers

Introduction

Stack is an open-source authentication and user management platform designed for developers. It offers a comprehensive solution for managing users, providing a scalable alternative to Auth0 without vendor lock-in.

Key Features

• Prebuilt frontend components for Next.js and React
• Management & Analytics Dashboard
• Customizable UI and functionality
• Open-source codebase
• Self-hosting option available
• REST API for cross-platform integration
• Automated email notifications

Use Cases

• User authentication (OAuth, Email)
• User profile management
• Team and permission management
• Webhook integrations
• Single Sign-On (SSO) with OAuth and SAML

Pricing

1. Free: For individuals

   • 10K Monthly active users
   • Unlimited projects
   • 1 Dashboard seat

2. Team: $49/mo

   • 50K Monthly active users
   • Unlimited projects
   • 3 Dashboard seats (additional $39 each)

3. Growth: $249/mo

   • Unlimited Monthly active users
   • Unlimited projects
   • 5 Dashboard seats (additional $49 each)

Teams

Stack offers robust team management features:

• Create teams with a single API call
• Manage permissions easily
• Supports unlimited monthly active teams on all plans