primitive YC Application

Spring 2026Active

primitive went through Y Combinator in the Spring 2026 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: Spring 2026
Industry: B2BInfrastructure
Team size: 4
Status: Active
Launched: 2026

Founders

Ethan ByrdFounder

What primitive does

Building the communication infrastructure needed for fully autonomous agents

primitive's YC application, reconstructed

Y Combinator application

primitive, Spring 2026 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

primitive

Describe what your company does in 50 characters or less.

Communication for agents

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

We are building communication infrastructure specifically designed for fully autonomous agents. Our product handles the complex workflows and interactions these agents need to perform tasks that require automation and coordination, providing reliable, developer-friendly tools for companies building on agent technology.

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

We live in San Francisco, CA, and the company will remain based here after YC.

Explain your decision regarding location.

San Francisco is where we live and work, and it's the best place for agent and AI infrastructure startups because of the access to engineering talent and potential customers.

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 primitive YC application?

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