Circle will officially launch the Arc public mainnet on Sept. 16.
Its genesis validator list reads more like a roster of global financial infrastructure companies than a typical crypto network. The names disclosed in the source article are BlackRock, DTCC, Intercontinental Exchange, the parent company of the New York Stock Exchange, Visa, Mastercard, Standard Chartered, MoneyGram, Galaxy, Sumitomo Corporation, SBI Group, and Global Payments. The article noted that none of them are crypto-native projects.
Arc, as presented in the article, is not designed to answer whether crypto needs one more Layer 1. Circle is framing it around a different question: if stablecoins become the rail for global payments, who provides the underlying operating system that keeps that rail running?
What Arc is
Arc is a Layer 1 blockchain built by Circle. The article described its core positioning as an economic operating system for the internet, and set out three features that separate it from most other L1 networks.
First, USDC is the native gas token. All onchain fees on Arc are denominated in dollars and paid in USDC. For financial institutions, the article said, that makes transaction costs predictable and easier to book, without the balance-sheet volatility tied to a fluctuating native token.
Second, Arc is built for sub-second deterministic finality. Its consensus engine is called Malachite, a Byzantine fault tolerant system brought into Circle after the Informal Systems team joined the company, and evolved from Tendermint. The point of deterministic finality is simple: once a transaction is confirmed, it cannot be rolled back. The article tied that requirement to use cases such as point-of-sale payments, real-time FX settlement, and broker settlement.
Third, the network combines EVM compatibility with what the article called compliance-oriented privacy. The execution layer is built on Reth and is fully compatible with Ethereum’s Solidity tooling and contract libraries. Arc also offers an optional privacy layer exposed through EVM precompiles, supports pluggable cryptographic back ends, and keeps an audit disclosure channel in place.
Day-one ecosystem
Circle has already disclosed the lineup expected around Arc’s mainnet debut.
DeFi protocols and capital allocators
The list includes Aave, Aerodrome, Morpho, Uniswap, Curve, Euler Finance, and Fluid, together with FalconX, Galaxy, GSR, Keyrock, Nonco, and XFX. The article said the core stack for lending, trading, and onchain capital deployment is largely in place.
Stablecoin payments
On the payments side, Circle named Rain, Thunes, and Wirex. The article said those firms cover card settlement, compliant consumer platforms, and global cross-border payment networks.
Wallets and exchanges
The launch lineup for access points includes Binance Wallet, Chainlink, Fireblocks, Kraken, Ledger, MetaMask, Uniswap Labs, and Upbit.
Arc also comes with an embedded onchain FX engine called StableFX, which supports real-time conversion between stablecoins in different currencies. Combined with deep integration of Circle’s own CCTP, the Cross-Chain Transfer Protocol, and Paymaster for gas sponsorship, the network is presented as an out-of-the-box stablecoin financial toolkit for developers.
ARC token design
Circle’s white paper released in May 2026 laid out the framework for the ARC token.
Initial supply is set at 10 billion tokens. Expected annual issuance is 2% to 3%, with a long-term goal of reaching what the article called “inflation neutrality.” As the network transitions toward a proof-of-stake consensus model, ARC is intended to be used for staking, governance, and network incentives, with Circle describing the token as a coordination mechanism for the Arc network.
Sixty percent of supply is allocated to the ecosystem. That bucket covers token sales, developer grants, network growth programs, and other participation mechanisms.
The article also cited Cryptonomist as reporting that the ARC token presale raised $222 million at a $3 billion valuation, led by a16z crypto, with BlackRock and Apollo participating.
There is no officially confirmed airdrop plan at this stage. The piece said Circle CEO Allaire has publicly stated that the company is “actively exploring” a native token. It added that the tokenomics in the white paper, especially the 60% ecosystem allocation, have fueled community expectations.
Testnet activity is another focus. According to the article, Arc’s testnet generated more than 500 million transactions and nearly 3 million wallet addresses, and many users view that activity as a possible qualification signal.
Arc ecosystem watchlist before mainnet
Based on records from third-party directory ArcLens, more than 308 projects currently claim to be building on Arc. The article grouped the most notable names into several tiers.
Tier one: confirmed DeFi blue chips for launch
Uniswap (v4): On Aug. 17, Uniswap formally said it would deploy v4 AMM infrastructure when Arc mainnet goes live, bringing liquidity pools and programmable hooks to the network. The article argued that Uniswap’s arrival will directly shape trading depth in Arc’s opening phase.
Aave: The lending protocol has confirmed an Arc deployment. Users will be able to borrow and lend USDC and other supported assets on the network.
Morpho: Morpho, a modular lending protocol focused on optimizing borrowing rates, is described as complementary to Aave.
Aerodrome / Velodrome (Dromos Labs): Aerodrome on Base and Velodrome on Optimism are backed by the same team, Dromos Labs, and have both been confirmed for the Arc ecosystem. The article said Aerodrome’s path on Base, built around early LP incentives and the veToken model, could be repeated on Arc.
Curve: Curve’s focus on stablecoin swaps gives it a natural fit on a chain where stablecoins are the native gas asset. The article said Arc’s built-in StableFX engine could either complement Curve or compete with it.
Euler Finance and Fluid: Both DeFi lending or trading protocols have deployed test versions on Arc’s testnet and are confirmed for mainnet launch.
Tier two: market makers and liquidity providers
The article listed FalconX, Galaxy, GSR, Keyrock, Wintermute, IMC, Auros, B2C2, Cumberland, and Zodia Markets. It said the near full attendance of top market makers should support early liquidity depth and limit the kind of thin-book conditions often seen on new chains.
Tier three: Arc-native projects
These projects are built specifically for Arc and, according to the article, have not received official endorsement from Circle. That makes them higher risk, but potentially more direct beneficiaries if the ecosystem expands.
ViFi Labs: A decentralized FX protocol focused on emerging market currencies including the Nigerian naira, Brazilian real, and Colombian peso. It uses an AMM architecture designed for correlated assets to target near-zero-slippage exchange. The article said ViFi has already deployed on the Arc testnet, with Arc serving as its primary liquidity and FX execution center.
ARCLaunch: Described as an Arc version of Pump.fun, ARCLaunch is positioning itself as a one-click meme token issuance and trading platform. The plan includes an integrated cross-chain bridge, unified balances, Uniswap integration, creator fees, and a referral system.
AstraPump: Another launchpad and DEX focused on one-click token creation and trading. The article said it ranks high on ArcLens’ Trending list and is competing directly with ARCLaunch.
Lunex: A Curve-style StableSwap AMM built around low-slippage stablecoin swaps.
Orixa (ORIXIANS): A native NFT marketplace on Arc that plans to release the ORIXIANS NFT series after mainnet launch. The article said it has not made a token issuance plan clear.
Tier four: payment infrastructure
Blockradar: A payments infrastructure team introduced in Circle’s official blog on July 13, aimed at enterprise services.
Rain, Thunes, Wirex: These firms cover card settlement and cross-border payments. The article said retail participation may be limited, but activity from these projects could serve as an early indicator of whether Arc’s payments-chain thesis is gaining traction.
What to prepare in the final 24 hours before launch
- Hold USDC. Every action on Arc requires USDC for gas, so users need enough USDC on Ethereum or another chain that supports CCTP.
- Set up wallets. MetaMask has confirmed support for Arc, and users can add Arc’s Chain ID and RPC endpoint after launch. Ledger hardware wallets have also confirmed support.
- Watch the bridge route. Circle’s CCTP is the official cross-chain path for moving USDC onto Arc. The article warned that phishing sites posing as “ARC Bridge,” including onbridge.xyz, have already appeared, and said users should stick to Circle’s official channels.
- Track ArcLens and the official ecosystem pages. The article described ArcLens as the most comprehensive third-party directory for Arc projects at this stage, with token price, market cap, trading volume, and liquidity data.
- Use the testnet if you have not yet done so. The article said there is still time. While no ARC airdrop has been confirmed, the 60% ecosystem allocation in the white paper and the existing Community Program, which includes badges and points, have made testnet activity a closely watched signal.
The article closed on a simple note: everything is ready, and the market is waiting for the doors to open.