Circle has launched Arc Studio, a new AI coding agent built to generate full stack onchain applications from simple text prompts. The tool was announced on September 17, one day after Circle's Arc network moved to public mainnet.
Arc Studio can produce frontend interfaces, backend logic, and smart contracts based on a plain language description of what a user wants to build. Generated applications can be tested across nine blockchain networks, including Arbitrum, Avalanche, Base, Ethereum, and Polygon.
How Arc Studio Works
Users describe an app in everyday language, and Studio assembles the pieces into a working prototype. This includes wallets, gas settings, smart contracts, and testnet infrastructure, tasks that normally take developers time to set up separately.
Once a prototype is built, developers can export the code into their own repositories for further review. They can then deploy the application using their own credentials and infrastructure.
Circle said Studio can be used through a web interface or as a subagent inside coding tools like Claude Code, Codex, and Cursor. The company has warned that AI generated code may contain errors or security gaps and should be tested independently before use.
Studio does not sign, fund, or submit transactions on a live network on behalf of users. That step is left to developers.
USDC Payments Are Central to the Tool
Arc Studio is built around applications involving USDC, the stablecoin issued by Circle. Supported use cases include payments, swaps, wallets, bridges, lending, staking, and payouts.
As an example, a developer could prompt Studio to build a cross border payout app with a built in admin panel. Other examples include billing systems for software subscriptions and payment tools that let AI agents pay each other for computing resources.
Studio also connects to decentralized finance protocols including Aave, Morpho, and Uniswap. This means builders do not need to link each service by hand.
Circle has also been upgrading the infrastructure behind these transfers. This includes changes to its Cross Chain Transfer Protocol that added upfront fee payments for faster cross chain transfers.
The launch comes as Circle expands the broader Arc ecosystem following the network's mainnet debut on September 16. Arc launched with backing from institutional validators including BlackRock, Mastercard, Visa, and Standard Chartered.
More than 100 applications were reportedly live on the network at launch, according to Circle. The network supports 22 fiat backed stablecoins and uses USDC as its native gas asset, removing the need for a separate token to pay transaction fees.
Before the public launch, Arc operated as a private mainnet with more than 100 institutional and ecosystem participants. Its earlier public testnet processed more than 700 million transactions before the mainnet opened, according to Circle.
