Stack Auth

Founded 2024

Stack Auth provides an open-source suite of tools for authentication and user management. It offers solutions for managing B2B customers with organizations and teams, defining arbitrary permission trees and org-wide roles, and accessing third-party OAuth APIs. The platform aims to simplify authentication processes for developers with ready-to-use components and a headless SDK.

Last Updated: March 13, 2026

Current Valuation

No valuation data available

Funding Summary

No funding data available.

Key People

Zai Shi
Founder
Konstantin Wohlwend
Founder

Core OSS Projects

Open-source Auth0/Clerk alternative. Provides a managed user authentication solution.

License: MIT and AGPL

Business Information

Industries

Software

Technologies

Authentication
JavaScript
Open Source
Next.js
User Management
REST API
React

Sectors

Developers

Licenses

MITAGPL-3.0

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