Halliday

A payments company that quietly became infrastructure

Halliday sits in an awkward, valuable spot. It is not a wallet, not an exchange, not a token. It is the plumbing that other crypto products bolt on when they need money to move and would prefer not to think about how. Onramps, bridges, swaps, offramps - the unglamorous machinery of value changing hands - folded into a single interface developers can call without learning the failure modes of seven different chains.

Today the company describes itself with a phrase that sounds like a dare: you can never write a smart contract again. Bold for an industry that spent a decade insisting smart contracts were the whole point.

Blockchain was built like hardware. Software moves faster.

Here is the tension Halliday exists to resolve. Shipping onchain has historically meant deploying a contract, auditing it within an inch of its life, and then living with it - because changing it means deploying another one. Every iteration carries the weight of permanence. Halliday calls this the "hardware era": measure ten times, cut once, and pray.

Add the second tax: fragmentation. A user's money is on one chain, the app is on another, the liquidity is on a third. Bridging, manual swaps, and rigid contract logic turn a simple payment into a multi-hop obstacle course where any leg can fail.

Two founders, one pivot, and a professor's crypto course

Griffin Dunaif and Akshay Malhotra did not start here. In 2022 their company let gamers buy in-game items now and pay later - Halliday held the asset until you paid, so a missed payment never touched your credit report. It was clever, it was consumer, and it raised $6 million from a16z crypto. Dunaif's interest in the space traces back to Stanford's CS251, the cryptocurrency-and-zero-knowledge course that has radicalized more than one computer science major.

Then they did the thing most founders only talk about. They looked at what they had built and decided the interesting problem was not financing pixels - it was the missing business infrastructure underneath: the messy work of exchanging value, owning assets, moving them between chains. So they pivoted from a product gamers used to a protocol developers build on. Same backer, much bigger swing.

The team they assembled is small and dense - roughly thirty people with stops at Stanford, Harvard, Carnegie Mellon, and tours through Alphabet, Meta, Netflix, Stripe, and Compound. The kind of roster that suggests the pivot was a conviction, not a panic.

One protocol, two faces

Underneath sits the Agentic Workflow Protocol. On top sits Halliday Payments, the product most developers meet first. The protocol abstracts multi-chain complexity; the payments layer is what that abstraction looks like when a real card swipes against a real chain.

Make onchain feel like a normal API call

The longer arc is not really about payments. It is about reliability. Halliday wants onchain workflows to behave the way a web2 engineer expects a request to behave - predictable, composable, safe to retry. Get that right and a second door opens: AI agents that can transact across chains without a human babysitting each transaction, because the protocol underneath guarantees the same safety as a familiar API.

It is an unfashionably practical mission for a sector that loves grand narratives. Halliday's grand narrative is, essentially, that things should work.

Back to the laptop

Return to where we started. A developer opens a laptop and moves money across four chains in a few lines - card in, tokens out, bridged and swapped, no contract written, no audit endured. A year ago that was a roadmap. Halliday's bet is that it becomes a Tuesday.

If onchain finance is ever going to feel as ordinary as accepting a card payment, someone has to build the boring layer that makes it ordinary. Halliday is making that someone its entire personality - and the people who funded Stripe-era infrastructure seem to think there is a business in being indispensable and invisible at the same time.

The smart contract, in their telling, becomes an implementation detail. For an industry that turned the smart contract into a religion, that is either heresy or the next obvious step. Halliday is wagering $26 million that it's the second one.