SST YC Application

Winter 2021Active

SST went through Y Combinator in the Winter 2021 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: Winter 2021
Industry: B2BInfrastructure
Team size: 8
Status: Active
Launched: 2021

Founders

Jay VFounder
Frank WangFounder

What SST does

Makers of sst.dev, opencode.ai, opennext.js.org, openauth.js.org, models.dev

SST's YC application, reconstructed

Y Combinator application

SST, Winter 2021 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

SST

Describe what your company does in 50 characters or less.

Developer tools and open source infrastructure

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

We build sst.dev and related open source tools like opencode.ai, openauth.js.org, and models.dev. Our products help developers build and deploy serverless apps more easily by providing tools that integrate closely with AWS and modern frameworks, making complex infrastructure manageable.

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

We live in Toronto, Canada, and the company is remote-first. After YC, we plan to remain remote with a core base still in Toronto.

Explain your decision regarding location.

Toronto has a growing tech community and is where both founders are based. Remote work lets us hire talent globally while staying connected to an ecosystem we know well.

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.

See full application

Frequently Asked Questions

Is this the real SST YC application?

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