Circle's Arc Went Live Today: 11 Bank Validators, 100 Apps, USDC as Gas — and a 10 Billion ARC Mint

Circle switched on Arc on Wednesday, September 16, and the USDC issuer now runs the settlement layer its own dollar travels over. The new Layer 1 launched with more than 100 institutional and ecosystem partners live on day one, eleven financial institutions producing blocks alongside Circle, and a fee model that is unlike anything else in production: transaction fees are paid in USDC itself, not in a separate volatile token. Circle CEO Jeremy Allaire called it the single most significant launch in the company's history since USDC itself.

What Actually Went Live Today

USDC is the native gas token. Businesses and individuals pay network fees in the same dollar stablecoin they are already sending and receiving, with a base gas cost of roughly $0.01 per transaction. That removes one of the oldest friction points in crypto adoption: nobody has to buy an unfamiliar asset just to move money. USDC is the sixth-largest crypto asset with more than $73 billion in circulation, so the demand sink is real from block one.

Consensus runs on Circle's Malachite implementation of Tendermint BFT, a Byzantine fault-tolerant engine that delivers deterministic finality in under a second with no reorganisation risk. Internal benchmarks put finality below 350 milliseconds and throughput above 3,000 transactions per second with twenty validators, on half-second blocks targeting 30 million gas. The execution layer is built on Reth, so the chain is fully EVM-compatible: existing Solidity contracts, Foundry and Hardhat tooling all work at launch without modification. Arc also ships optional privacy controls that can conceal transaction amounts, the kind of feature institutional trading desks ask for before they will touch a public ledger.

Both of those design choices are documented in Arc's own technical documentation, which is worth reading before you judge the chain on price alone.

Eleven Financial Giants Now Produce the Blocks

Arc does not run a permissionless validator set. Block production belongs to a permissioned cohort of eleven institutions plus Circle: BlackRock, the Depository Trust & Clearing Corporation, Visa, Mastercard, Intercontinental Exchange, Galaxy, MoneyGram, SBI Group, Standard Chartered, Sumitomo and Worldpay. Circle frames the structure as a feature rather than a compromise, because it hands banks a defined governance and compliance framework for using a public chain for treasury operations, trading and confidential payments. Circle's own updates describe roughly twenty SOC 2-certified validator operators coming online in phases across multiple regions, even though the founding cohort is the eleven named firms.

That validator list is also the clearest signal of who Arc is built for. BNY, HSBC, Societe Generale and State Street are among the banks with access to the network. On the trading side, access arrives through Binance, Kraken, Bybit, OKX, KuCoin, Gate, Upbit, Bitso, Bitvavo, MEXC, OSL and Wenia, with Coinbase set to follow, while Anchorage, BitGo, Ceffu, Copper, Fireblocks and Zodia Custody handle institutional custody.

More Than 100 Applications On Day One

The launch roster is not a testnet wishlist. Aave and Morpho handle lending, Uniswap, Aero and FOMO provide trading venues, Pools joined as a launchpad partner, and OpenSea supports the chain from day one. Alongside them sit 1inch, LI.FI, Pump.fun, Dinari, Doppler, edgeX, Extended, Hibachi and Bankr. The testnet that opened in October 2025 has already processed more than 700 million transactions and the Arc House developer programme counts over 75,000 members, which is the population that has to ship the second wave of applications.

Collateral is coming from the same direction. BlackRock is deploying its BUIDL fund onto Arc for on-chain subscription and redemption, Circle's USYC token provides tokenised collateral, and the DTCC plans to begin tokenising assets held through its Depository Trust Company infrastructure on Arc in the second half of 2027, starting with tokenised repo markets, collateral mobility and corporate actions. Arc also supports more than twenty fiat stablecoins including USDC, EURC, JPYC, KRW1 and TRYB, and connects to more than twenty other blockchains through Circle's Cross-Chain Transfer Protocol and Gateway.

One number in Circle's launch data deserves attention: USDC accounts for 98.8% of agent-driven transaction volume on the network, according to Circle, citing Dune analytics. If software agents really do become the next wave of payment senders, the rail they settle on is already being decided.

The 10 Billion ARC Mint Nobody Was Promised

Circle also completed the genesis mint of ten billion ARC tokens this week, the native asset of the new chain. It is a first: no other publicly traded company has minted a network token for a Layer 1 it launched. The important qualifier is that Circle stated plainly this is a technical milestone and not a commitment to a public offering. The mint exists to make a move from proof-of-authority to proof-of-stake consensus possible in 2027, not to put a tradable token in retail hands today.

What does exist is an investor base. Circle raised $222 million in a token presale in May 2026 at a fully diluted valuation of roughly $3 billion, led by a16z crypto with BlackRock, Apollo and ICE participating. Combined with a permissioned validator set that Circle intends to expand into a distributed, community-driven system, that is the roadmap an ARC listing would eventually sit on top of. Until then, the tradable expression of the Arc thesis is USDC itself and the applications building on the chain.

the single most significant launch in Circle's history since USDC itself

What To Watch Next

Four dates and thresholds carry the story from here. First, the proof-of-authority to proof-of-stake transition targeted for 2027, which is the event that would give ARC a real economic role. Second, the phased rollout of the roughly twenty SOC 2-certified validator operators, which decides how decentralised the network actually becomes. Third, the DTCC tokenisation work in the second half of 2027, the point at which assets sitting at the world's largest clearing house start settling on Arc. Fourth, agentic volume: the 98.8% USDC share is a small market today, and its growth rate is a better adoption gauge than launch-day announcements.

The timing is worth noting for anyone watching the broader tape. Arc went live the morning after the U.S. Senate failed to advance the CLARITY Act on a 49-50 cloture vote, and risk assets sold off with Bitcoin near $75,700 and Ether around $2,390 by Wednesday afternoon. Stablecoin infrastructure shipped anyway, and Circle is now the issuer of the dollar, the operator of the chain that dollar runs on, and the party that mints the token attached to it.

You can follow the network directly at arc.io, and the stablecoin side at Circle's USDC page.