Stack Auth

Stack Auth YC Application

Summer 2024Active

Stack Auth went through Y Combinator in the Summer 2024 batch as a B2B company. Below: what the company does, who founded it, and its application to YC, reconstructed question by question in the real YC form.

YC batch
Summer 2024
Industry
B2BEngineering, Product and Design
Team size
6
Status
Active
Launched
2024

Founders

  • Konstantin Wohlwend
    Konstantin WohlwendFounder
  • Zai Shi
    Zai ShiFounder

What Stack Auth does

Stack is the open-source authN, authZ, and user management platform. We build for devs who want to iterate quickly, offering both managed auth and self-hosting. You can set it up in one minute and scale with the project as it grows. Stack was built by repeat founders with strong technical backgrounds. Check out our GitHub:

Stack Auth's YC application, reconstructed

Y Combinator application

Stack Auth, Summer 2024 batch. The real form questions, answered from public data.

  1. Founders2
  2. Company7
  3. Progress7
  4. Idea4
  5. Equity3
  6. Curious2
  7. Batch Preference1

Company

Company name

Stack Auth

Describe what your company does in 50 characters or less.

The open-source Auth0 alternative

What is your company going to make? Please describe your product and what it does or will do.

We are building Stack, an open-source authentication, authorization, and user management platform. It targets developers who want to move fast and either integrate managed auth or self-host their infrastructure. Our product sets up in under a minute and scales with a project as it grows.

Where do you live now, and where would the company be based after YC?

We live in San Francisco, CA, and the company is based here as well.

Explain your decision regarding location.

San Francisco has the right mix of tech talent and startup energy that supports rapid iteration. Being here keeps us close to potential users and any future partners or investors.

21 more answers in the full application

Founders, Progress, Idea, Equity, Curious, Batch Preference are in the full version. Create a free account to open it in YC Insights, next to every other YC batch.

Frequently Asked Questions

Is this the real Stack Auth YC application?

No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Stack Auth's public data (launch notes, founder backgrounds, product description). It shows how a company like Stack Auth would present itself to YC, not the text they submitted.

What YC batch was Stack Auth in?

Stack Auth was part of the Y Combinator Summer 2024 batch.

Who founded Stack Auth?

Stack Auth was founded by Konstantin Wohlwend, Zai Shi.

What does Stack Auth do?

The open-source Auth0 alternative

How do I read the full reconstructed application?

Create a free Round Funded account. The full 26-answer version of Stack Auth's application, and every other YC batch, is in YC Insights.

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