Halliday Raises $20M Series A Led by a16z crypto to Ensure Developers Never Write a Smart Contract Again

Griffin Dunaif

— 3 min read
Halliday Raises $20M Series A Led by a16z crypto to Ensure Developers Never Write a Smart Contract Again
Funding graphic outlining key investors, including a16z crypto, SV Angel, Credibly Neutral, and Blizzard Fund

Today, we are thrilled to announce we’ve raised $20M in Series A funding led by a16z crypto, with participation from SV Angel, Credibly Neutral, the Avalanche Blizzard Fund, and angels including Viktor Bunin from Coinbase, Jason Zhao from Story Protocol, Ekram Ahmed from Celestia, and Nikil Viswanathan and Joe Lau from Alchemy. This is a16z crypto’s second investment in Halliday, after leading a $6M seed round in 2022, and brings our total funding to over $26 million. 

This funding will accelerate the development of our Workflow Protocol and first-party product, Halliday Payments. It will also fuel the growth of the company as we continue to create technology with top talent in AI, fintech, and blockchain. 

Building the future of onchain app development

Smart contracts have long been the default way the industry builds applications onchain. However, smart contract development resembles hardware engineering more than software engineering: it is slow (with progress often measured in years), expensive, and dangerous.

The promise of AI on blockchain has also remained inaccessible due to compliance and safety concerns. For AI to operate onchain, there needs to be robust safety infrastructure where businesses have oversight of AI-enabled automations. 

The Workflow Protocol solves these problems. It enables developers to automate any workflow without writing a smart contract, like onramping to an L2, recurring payments, treasury management, B2B agents, and more. With workflows, teams can create breakthrough applications in hours, not years. 

Live and in production

Since 2023, we’ve been battle-testing our technology with a proprietary version of our workflow engine, powering production flows for major partners, including DeFi Kingdoms, Core Wallet by Ava Labs, ApeChain, and more. It is also going live soon with Story Protocol, Lens, Frax, and other leading projects.

Halliday Payments is used by over 35 clients and leverages workflows built on the protocol. It offers an end-to-end payments suite for L1s, L2s, and L3s, lowering the barrier for new users to spend their first dollar.

Never write a smart contract again

With Halliday, Web2 and Web3 businesses can quickly build applications and tap into the growing demand for decentralized products. Fintechs, banks, and other financial institutions can leverage our technology to offer digital asset payments, stablecoin subscriptions, global yield products, and programmable treasury management. Workflows offer a faster, cheaper, and more secure way to operate blockchain services. Unlike traditional smart contracts, our protocol is forward-composable, automatically integrating new protocols and chains without additional developer effort.

Our mission is to pioneer the software era of blockchain, enabling developers to build applications in hours, not years. With Halliday, you can never write a smart contract again. 

If you’re excited about what we’re building, we’d love to have you on board. Get started today: 

  • Halliday’s Workflow Protocol: To start building workflows, join the Early Access program.
  • Halliday Payments: Add our end-to-end payments suite to your chain. You can book a call with us today. 

For more information, please visit us at halliday.xyz, or contact the Halliday team at partnerships@halliday.xyz .

About Halliday

Halliday is the first Workflow Protocol. By safely delegating workflows to autonomous systems, such as agents or software, Halliday enables you to create breakthrough applications in hours, not years. Halliday Payments, a first-party application built on top of the protocol, streamlines onboarding by enabling users to seamlessly acquire any asset on your chain with just a single click.

Backed by a16z crypto, #Hashed, and SV Angel, we have partnered with prominent developers such as ApeChain, Story Protocol, and DeFi Kingdoms. Our team comes from Stanford, Harvard, and Carnegie Mellon and has years of experience at the most recognized Web2 and Web3 brands in the world, including Alphabet, Meta, Netflix, Stripe, Compound, and more.

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