Welcome to Arc 101, Episode 2.
Stable value is foundational to Arc, from USDC and EURC to CCTP, Gateway, stablecoin fees, deterministic finality, and configurable privacy.
See how Arc’s core primitives work together.
Some systems are held together by filing cabinets, approval chains, and the occasional misplaced vacuum cleaner.
Arc is built for the next one. The Economic OS for the internet.
Programmable money. Always-on settlement. Infrastructure for the agentic economy.
Mystery fees, intermediary currencies, and value lost before settlement.
Arc fixes that with predictable fees, transparent pricing, and instant FX settlement.
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/XmFdy0SG5g
Learn more: https://t.co/JOGsf9Ma5V
Introducing Arc, an open Layer-1 blockchain purpose-built for stablecoin finance.
From payments to FX to capital markets, Arc is the home for builders innovating with digital money and tokenized value on the internet.
Stablecoins have shown us what’s possible.
They’ve powered trillions in onchain transactions and unlocked a faster, more open financial system.
Arc is designed to provide an enterprise-grade foundation with the performance, reliability, and liquidity needed to scale stablecoin use cases worldwide.
Featuring:
✅ USDC as native gas
✅ Built-in FX engine
✅ Deterministic sub-second finality
✅ Opt-in privacy
✅ Full Circle platform integration
At its core is Malachite, a high-performance consensus engine developed by @informalinc that powers Arc with safety, liveness, and resilience at scale.
Arc expands the design space for stablecoins by uniting speed with certainty and delivering the native tooling needed to meet real-world business obligations.
Open and composable, Arc is designed to interoperate seamlessly with the broader multichain ecosystem.
Fully EVM-compatible, developers will be able to build on Arc using the same frameworks and tooling they know and trust.
Together, we’re laying the foundation to move stablecoin finance from early adoption to globally trusted infrastructure.
Arc will enter private testnet in the coming weeks, with public testnet expected this fall.
Read the litepaper → https://t.co/CyaV9GRbPW
Join us in building the new internet financial system → https://t.co/0qxv7q80Gp
Circle’s Developer Grant program backs founders using USDC, Arc, and the Circle Developer Platform to solve real-world financial access problems.
In the first 2026 cohort, 8 teams building on Arc are focused on challenges across Africa and the Global South, including payments, FX, remittances, merchant checkout, and stablecoin-native banking.
Here’s who they are and what they’re building.
@BlockradarHQ is the infrastructure layer many of these quietly depend on.
One API that can handle wallets, AML screening, gasless transactions, and multichain liquidity so teams don't have to rebuild those components themselves.
@kolan_xyz gives non-US individuals a real USD account backed by USDC.
Freelancers and remote workers in 50+ countries across the Global South can receive, hold, and spend dollars.
@myazahq is collapsing Africa's fragmented payment rails into one layer.
Send money quickly across 21 African currencies, pay bills, hold a virtual USD card, and access business payouts.
@ArrelTechnology built a plug-and-play USDC checkout for African merchants.
Accept any CCTP-supported stablecoin via a payment link, auto-sweep to your treasury, and offramp to local currency.
@payritHQ lets African users send and receive in their local currency while USDC handles settlement behind the scenes.
No FX spread, no T+3 delays, just near-instant cross-border payments that work the way people expect them to.
@ViFi_Labs is building the onchain FX exchange that emerging markets have been missing: a DEX designed specifically for stablecoin-to-stablecoin swaps in NGN, BRL, and COP with near-zero slippage.
@usesfxmoneyapp started with one corridor: African students in Turkey sending money home.
It's now a full USDC neobank with dollar accounts, free international transfers, and a card product, built for the African diaspora.
@flezpay tackles an important issue for the Global South. In volatile currency markets, static price tags go stale overnight.
The team developed AI-powered QR codes that update prices in real time, with USDC and fiat accepted at the same counter.
The full story of what these teams are building and what it tells us about where stablecoin adoption is actually happening is on the Arc blog: https://t.co/r0CON5jnuT
In a world where AI agents need identity, jobs, and instant settlement.
@Arc supports onchain agent registries and programmable escrow.
Autonomous coordination with stablecoin finality.
Live for testing now.