assistant-ui | Developer Tools | Standout | Standout

assistant-ui

Open Source React.js Library for AI Chat

San Francisco

3 employees

Developer Tools

Seed · $500K

Website X / Twitter

About assistant-ui

assistant-ui helps frontend developers add AI chat to their apps. Our product is used by several dozen companies, like LangChain, Stack AI, Browser Use, and Athena Intelligence. We're building an open source Typescript/React library and a backend as a service, with first class integrations into popular agent frameworks like LangGraph and Vercel AI SDK.

Company details

Team Size3

LocationSan Francisco

IndustryDeveloper Tools

Funding

Total raised

$500K

StandoutYBacked by Y Combinator · P26

“LeBron has an agent. Why don’t you?”

— Now you have one too.

Earn $3,000

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ConnectTwitter / X LinkedIn

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Last stage

Seed

Investors

Y Combinator

468 Capital

Pioneer Fund

Founders

Simon Farshid

Simon is the Founder and CEO of assistant-ui. He previously co-founded READO, a book recommendation engine, and grew it to 140k MAUs. Simon started coding at age 12 and has won 8 hackathons in 5 countries.

What happens next.

No applications, no recruiter spam. Just the intro.

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.