Today we are proud to introduce @Arc, a new blockchain network purpose-built for stablecoin finance. Arc is a step toward something I’ve been working on for years: building a real-world financial system that’s programmable, transparent, and global. One where the benefits of blockchains—openness, speed, and accessibility—can finally show up in everyday financial life. But to understand why Arc feels so important to me, I want to share a bit of how I got here. I studied finance at Cornell and spent time working at hedge funds and investment banks. That experience gave me a close look at how money moves through the global system. What stood out to me wasn’t the inefficiency – it was who the system served and who it left behind. The moment it became personal was when I tried sending money to my aunt in India. It should have been simple. Instead, it was slow, expensive, and unnecessarily complicated. That experience forced me to confront how outdated and exclusionary financial infrastructure really is. It also pushed me into crypto. I joined a company building payment rails on the Bitcoin Lightning Network, trying to reimagine global payments from the ground up. The vision was bold, and I believed in it. But speed alone wasn’t enough. Without privacy, usability, and institutional trust, we were still far from something people could rely on at scale. That led me to start a company focused on privacy-preserving infrastructure. We wanted to build a foundation that made blockchains more secure, more human, and more capable of supporting real-world adoption. That company was eventually acquired by @circle, where I’ve been working on how to bring stablecoin-based finance to individuals, developers, and institutions. That work has led to Arc. Arc is launching at a moment that feels uniquely aligned. The technology has matured. Institutions are leaning in. And the core building blocks—stablecoins, lending markets, and payment protocols—are in place. Arc isn’t trying to replace what came before. It’s here to complement it, with a purpose-built platform designed for performance, opt-in privacy and stablecoin-based financial use cases. To me, Arc is a bet that now is the right time to lay the foundation for a more open, efficient, and inclusive financial system. A belief that stablecoins, paired with the right infrastructure, can open the door to a new category of finance, what we call StableFi. Not just for the crypto-native, but for people like my aunt who simply need a better way to move money and access financial tools. Arc isn’t the finish line. It’s the starting point. I’m proud to be part of it, and I’m even more excited for what comes next. We’re still early, and there’s a lot to figure out. But the path feels clearer than ever. I’m excited to keep building, and even more excited to see what others create on Arc.

NEW YORK OR NO WHERE

God bless the NY Knicks

A major new chain is coming. Relay will support @Arc from day one, connecting you to the onchain economy from the very first block 🟢

Anything but boring in there right now. My man Bill putting on a show

Boream & Boredley in for an awakening

An absurd event about a very bored board room at Boream & Boredley. Don’t expect anything interesting (trust me). arc.io/theboredroom

Arc Moves Fast. This Does Not. Watch what Arc was built to leave behind. June 9. arc.io/theboredroom

I am excited to host one of our first live investor AMAs -- open to all CRCL investors, developers, builders and the industry as a whole. I will be hosting in a special format/location (reveal next week), all broadcast live on X and YouTube. See below.

This is called @Arc

We're working more with startups more deeply than ever before. There's a lot of opportunity emerging to build high-quality financial experiences with global reach using stablecoin infra. Reach out if you think we can help at @BuildOnCircle and @arc

Lending infrastructure ready from day one on Arc. @Morpho will bring composable borrowing and lending to Arc Mainnet, giving builders a credible venue for onchain credit as the network goes live. More to come.

Jeremy Allaire (@jerallaire) is the Chairman, CEO, and co-founder of @circle, the issuer of USDC — a stablecoin with nearly $80 billion in circulation and a core piece of the broader stablecoin market, which has grown from zero to more than $300 billion over the past decade. In this fireside, YC Visiting Partner @nemild sat down with Jeremy to talk about Circle's founding vision of building an internet protocol for dollars, the wave of institutional and regulatory adoption now reshaping the financial system, and why agentic economic activity, not just consumer payments, might represent the most transformative frontier for stablecoin builders in the years ahead. 00:00 - Why Stablecoins Matter 01:45 - Circle's Origin 07:10 - Top Use Cases for Builders Today 11:22 - Consumer vs. Business Adoption 13:20 - Banks & Institutions Enter the Space 17:54 - Global Regulation Landscape 22:40 - AI Agents & the Agentic Economy 26:15 - Missing Infrastructure for Builders 27:38 - Three Big Predictions for Stablecoins

easy thing to miss in the ARC whitepaper protocol fees are paid in stablecoins. but they're converted to ARC at the protocol level before anything else happens. network usage = ARC demand, regardless of what you paid in

I gave an AI agent USDC to analyze my tweets and audit my X profile. Here’s how you can do the same.

100,000 followers on Arc. Build on Arc.

Introducing Circle Agent Stack: financial infrastructure for the agentic economy. Agent Stack gives agents the tools to: → Hold and move USDC through Agent Wallets → Discover services through Agent Marketplace → Execute repeatable financial actions through Circle CLI All within defined permissions and guardrails. Explore the site: agents.circle.com Read the blog: circle.com/blog/introducing-…

At a high level, ARC serves five structural functions within the Economic OS. The following white paper describes how ARC fulfills these roles in detail. arc.network/arc-token-whitep…

Read more about our plans. Android brought internet to 80% of the world's pockets. With Arc as the economic OS - we want to bring financial opportunities to every corner of the internet. Arc token delivers the coordination mechanism that keeps us true to this mission. arc.network/blog/introducing…

The ARC whitepaper is now live.