# Alex Fine

> Alex Fine is the founder and CEO of Fun (fun.xyz), a crypto-fiat payments company that builds the deposit and withdrawal rails behind apps like Polymarket, Lighter, and Aave. Fun processes over $18 billion in annual payment volume and raised a $72 million Series A in early 2026 led by Multicoin Capital and SignalFire. A Stanford math and computer-science dropout who shipped his first acquired app at 16, Fine wants Fun to be 'the front door' for a tokenized economy where anyone can buy anything with anything.

- **Role:** Founder & CEO at Fun (fun.xyz)
- **Organizations:** Fun (fun.xyz), Quill, Stanford University
- **Nationality:** American
- **Education:** Mathematics & Computer Science (dropped out 2020), Stanford University
- **Known for:** Built Fun into payments infrastructure processing over $18 billion in annual volume, Built the deposit/withdrawal rails for Polymarket, Lighter, and Aave, with 20+ clients total, Raised a $72M Series A led by Multicoin Capital and SignalFire in early 2026

## Career timeline

- **~2015** — Founded Quill, a studying app, at age 16
- **2018** — Quill is acquired and shut down in February
- **~2020** — Dropped out of Stanford University, where he studied math and computer science
- **~2020-2022** — Ran a cryptocurrency fund built on AI-driven quantitative models
- **2022** — Founded Fun (fun.xyz), co-founded with former Meta ML engineer Mario Baxter
- **2022** — Raised $3.9M pre-seed to build dWallet applications on the Odsy Network; backers included Justin Mateen's Jam Fund, Soma Ventures, and Nomo Ventures
- **2026** — Closed a $72M Series A led by Multicoin Capital and SignalFire (announced May 2026, closed late January)

## Achievements

- Built Fun into payments infrastructure processing over $18 billion in annual volume
- Built the deposit/withdrawal rails for Polymarket, Lighter, and Aave, with 20+ clients total
- Raised a $72M Series A led by Multicoin Capital and SignalFire in early 2026
- Shipped and sold his first software product, the study app Quill, while still a teenager
- Owns the premium fun.xyz domain and the @fun handle on X

## Latest updates

- **2026-05** — Fun publicly announced a $72M Series A led by Multicoin Capital and SignalFire, with Infinity Ventures, Pharsalus Capital, and Tinder co-founder Justin Mateen participating.
- **2026-01** — The Series A round closed in late January.

## Links

- Website: https://fun.xyz
- LinkedIn: https://www.linkedin.com/in/alexkalilfine/
- Twitter/X: https://twitter.com/alexkfine

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Profile page: https://yespress.io/alex-fine
Published by YesPress — https://yespress.io
Last updated: 2026-06-04