Halliday Launches The First Agentic Workflow Protocol to Disrupt Smart Contract Development

[PRESS RELEASE – San Francisco, CA, February 20th, 2025]

Halliday announced the launch of the first Agentic Workflow Protocol, a new platform designed to eliminate the need for writing smart contracts by allowing AI agents to safely interact with blockchain applications. This marks the first protocol to allow flexible, high-level programmable workflows for smart contracts that AI agents can autonomously execute under strict, immutable guardrails.

Traditional smart contracts are slow, expensive, and rigid. They require months of audits and updates to support new features. Halliday’s protocol removes these constraints, enabling developers to build blockchain applications without writing new smart contracts for every use case. By providing a unified programming model, the Agentic Workflow Protocol streamlines development, significantly reducing backend infrastructure development.

As blockchain adoption scales, developers must integrate decentralized applications across a growing number of protocols, chains, and services. The complexity of blockchain ecosystems burdens developers, who dedicate years to integrations and infrastructure work rather than core product innovation. Halliday’s Agentic Workflow Protocol addresses inefficiencies by allowing developers to define on-chain workflows in a high-level programming model, significantly reducing development cycles and operational overhead.

Halliday’s approach introduces agentic workflows—tasks with immutable guardrails that allow AI autonomous systems, agents and software,  to execute actions on behalf of users while ensuring safety and compliance. This enables developers to automate on-chain actions across smart contracts seamlessly. Zero-trust AI delegation means AI agents safely perform blockchain transactions within predefined constraints, ensuring compliance and security. A unified programming model lets developers define workflows in familiar high-level languages instead of low-level contract code. On top of this, pre-built integrations remove the need for custom infrastructure and Halliday handles execution logic across multiple services and chains.

“In shifting the paradigm from smart contract development to agentic workflows, we are bring blockchain in the agentic era,” said Griffin Dunaif, CEO of Halliday. “This is a major step forward for businesses looking to integrate AI and blockchain, allowing developers to build applications in hours not years.”

Halliday’s protocol was built to be future-proof and forward-composable, meaning workflows adapt automatically to new protocols and virtual machines without requiring costly updates, making development faster, safer, and more scalable.

The agentic workflow protocol is currently in early access and is being rolled out over the course of Q2. Developers interested in leveraging agentic workflows are invited to join the Q2 early access program.

About Halliday

Halliday is the first Agentic Workflow protocol that lets developers assign tasks to autonomous systems, such as agents or software. Halliday enables you to create breakthrough applications in minutes not years. Halliday Payments, the first-party application built on top of the protocol, offers an all-in-one payments experience, enabling users to go from fiat-to-crypto, crypto-to-crypto, and crypto-to-fiat – the full cycle of money on a new network..

Backed by a16z and #Hashed, 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.