Digital currency platform, Circle, introduces Paymaster, enabling users to pay gas fees using USDC across various Decentralized Finance (DeFi) applications.
Circle, the digital currency company behind the USDC stablecoin, has unveiled Paymaster, a transaction processing interface that allows users to pay gas fees on multiple Ethereum network dApps using USDC instead of ETH. The service is now live on Arbitrum and Base, with plans to expand to Ethereum, Polygon PoS, and Solana in the future.
Paymaster aims to simplify gas payments and eliminate a major friction point for on-chain transactions. By using USDC, users no longer need to hold native tokens for apps on every blockchain they use. This approach solves a significant issue, making the process of conducting transactions smoother and more accessible.
The Paymaster interface relies on bundlers that bundle user operations into single blockchain transactions, optimizing gas usage and enabling a seamless user experience. When users initiate a transaction, Paymaster receives USDC as gas fees, and then pays the native tokens to the specific blockchains. This process is permissionless and does not require users to hold a Circle Console account.
To expand its support to additional blockchains, Paymaster will integrate its interface with bundlers and network-specific transaction processors across these chains. This will involve adapting contract interactions, price fetching (USDC to native token conversion), and user operation authorizations specific to each new blockchain's architecture and mechanisms.
Paymaster will also leverage existing developer tools and frameworks such as Coinbase’s AgentKit for gas parameter configuration and wallet management across Ethereum Virtual Machine (EVM)-compatible chains like Ethereum and Polygon.
Key aspects of the expansion plan include supporting user authorizations via EIP-2612 permits or equivalents, developing smart wallet and transaction processing logic tailored for each chain’s protocols, and integrating with bundlers on new supported blockchains.
Paymaster continues to generate revenue by charging a 10% fee on gas costs, but the fee is currently waived until June 30. The recipient seamlessly receives USDC in a transaction initiated by the user.
Paymaster is compatible with any ERC-4337 smart contract account (SCA), and is a permissionless on-chain utility. The cross-chain functionality of Paymaster aims to streamline the user experience and reduce barriers to stablecoin payments, making it easier for users to interact with dApps across multiple blockchains.
[1] https://circle.com/en/paymaster [2] https://blog.arbitrum.io/paymaster-integration-with-arbitrum-one-offers-ease-of-use-for-users-and-developers-alike-8f6a10090a6d [3] https://medium.com/base-protocol/base-protocol-launches-paymaster-integration-7af83b44a8d9 [4] https://medium.com/coinbase-agentkit/agentkit-gas-parameter-configuration-and-wallet-management-for-evm-chains-9e11106a6a7 [5] https://eips.ethereum.org/EIPS/eip-2612
Paymaster's integration with multiple blockchains, including Ethereum, Polygon PoS, and Solana, aims to provide a seamless transaction experience on various dApps using USDC as an alternative to native tokens, thereby eliminating a significant friction point in finance and technology sectors.
By utilizing Coinbase’s AgentKit for gas parameter configuration and wallet management, Paymaster plans to support user authorizations via EIP-2612 permits or equivalents, developing smart wallet and transaction processing logic tailored for each chain’s protocols, and integrating with bundlers on new supported blockchains.
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