# Griffin Dunaif

> Griffin Dunaif is the co-founder and CEO of Halliday, a San Francisco blockchain startup building the first agentic workflow protocol - infrastructure that lets developers ship onchain applications without writing smart contracts. A Stanford computer science graduate (2023) who left to build, Dunaif started Halliday in 2022 as a buy-now-pay-later tool for gamers, then pivoted to the broader bet that workflows, not contracts, are how AI agents will safely operate onchain. The company has raised $26 million total, including a $20 million Series A led by a16z crypto in March 2025.

- **Role:** Co-Founder & CEO at Halliday
- **Organizations:** Halliday
- **Nationality:** American
- **Education:** B.S. Computer Science (distributed systems focus), Stanford University
- **Known for:** Co-founded and leads Halliday, the first agentic workflow protocol for blockchain., Raised $26M total, including a $20M Series A led by a16z crypto., Backed by a16z crypto since the seed round - originally spotted as a Stanford junior.

## Career timeline

- **2022** — Co-founds Halliday in San Francisco as a buy-now-pay-later platform for gamers; raises $6M seed led by a16z crypto, with Hashed and a_capital.
- **2023** — Graduates from Stanford with a computer science degree.
- **2024** — Pivots Halliday from gaming finance toward broader onchain business infrastructure and the Workflow Protocol.
- **2025** — Launches the first agentic Workflow Protocol (Feb); raises $20M Series A led by a16z crypto (March), bringing total funding to $26M; speaks at Consensus 2025.

## Achievements

- Co-founded and leads Halliday, the first agentic workflow protocol for blockchain.
- Raised $26M total, including a $20M Series A led by a16z crypto.
- Backed by a16z crypto since the seed round - originally spotted as a Stanford junior.
- Launched infrastructure adopted by DeFi Kingdoms, ApeChain, and Core Wallet.
- Named speaker at Consensus 2025.

## Latest updates

- **2025-02** — Halliday launches the first agentic Workflow Protocol to disrupt smart contract development.
- **2025-03** — Halliday raises $20M Series A led by a16z crypto, total funding reaches $26M.
- **2025-05** — Griffin Dunaif speaks at Consensus 2025 on agentic AI and blockchain.

## Links

- Website: https://halliday.xyz
- LinkedIn: http://www.linkedin.com/in/griffindunaif
- Twitter/X: https://twitter.com/griffintier

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Profile page: https://yespress.io/griffin-dunaif
Published by YesPress — https://yespress.io
Last updated: 2026-06-12