Arc Public Testnet is now live. Open to developers and enterprises globally, Arc is the Economic OS for the internet that unites programmable money and onchain innovation with real-world economic activity. Start building: https://t.co/RMjxJmjcsH Learn more:

Day One Architect @crossmint is building seamless onchain experiences with stablecoins and agentic commerce. They’re using predictable gas fees, instant finality, and enterprise-grade APIs to power real-world payments and transactions on Arc testnet.

Proof of Authority at launch. Delegated Proof of Stake on the roadmap.

Circle Gateway is live on Arc Testnet, unlocking instant crosschain USDC liquidity for all builders. → Create unified USDC balances → Deliver on-demand crosschain liquidity → Plug-and-play access to any supported chain

That’s a wrap on the @arc DeFi Hackathon 🏁 An incredible weekend of building at Encode Hub with Arc! Congratulations to all the winners, and to every builder who shaped the future of DeFi this weekend. Winners ↓ Best Smart Contracts on Arc with Advanced Stablecoin Logic:

Circle Wallets is live on Arc Testnet. Builders can now quickly access a full spectrum of wallet infrastructures that are flexible, embeddable, secure, and multichain.

Killer convo with @MerlinEgalite about what we’re working on at @arc and @Morpho Can’t wait to bring more offchain financial activity onchain with these folks

Had a great chat with @dollarsterlingX on how @Morpho and @arc can empower the next phase of finance. Spoiler: it will be more open, efficient & transparent.

Settlement Finality is Not a Feature, It’s a Foundation. Glad we integrated settlement finality as a non-negotiable design primitive for @arc as well as having inspired other chains to adapt.

Building on Arc? Remember: → @USDC is a native token for gas → USDC is an ERC-20 stablecoin → They’re the same token, just expressed through two different decimal systems One token, two interfaces: https://t.co/AMZWXhXN8E

We’re excited to be among the early teams building on @arc, the Economic OS for the internet. Through Gelato’s Paymaster & Bundler, developers can deliver Gasless UX and sub-second latency, making stablecoin applications feel as intuitive as any modern fintech app.

Roundtable: Arc’s Core Design Features Deterministic sub-second finality. Stablecoins as native gas. Opt-in configurable privacy. Geo-distributed validator set. PoA to DPoS roadmap. @Soghoian - Principal Software Engineer @AdiSeredinschi - Principal Product Manager @gordonliao

meet the @arc team in person at DevConnect in Argentina

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The first-ever Arc Studio has arrived at Devconnect! Our developer meetup is bringing together Architects around the world to Buenos Aires to help shape the Economic OS for the internet. Join our Discord to learn how you can actively build on Arc. https://t.co/gegnVp1kyR

The @arc DeFi Hackathon is officially underway 🎉 The kickoff event and workshop have wrapped - setting the stage for a full weekend of DeFi innovation on Arc. Time to experiment, collaborate, and start building.

FX markets are some of the largest markets in the world. While FX trades 24/7, transactions still take days to settle. Arc solves that. Programmable onchain FX. Sub-second finality. This is the Economic OS for the internet.

⚡️ History just got deployed onchain. We opened the gates for some of the first builders to ever build on @arc. 2,500 took the challenge. 4 teams went beyond and built standout innovations. Meet the winners of the AI Agents on Arc with USDC Hackathon.

Join us today at 5 PM ET as we speak with @MORe_aGAiN, cofounder of Blockradar. RSVP here: