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Read release notesGas Station enables developers to build experiences that completely abstract gas - both for end-users and developers. Developers can sponsor network fees for the end-user, removing the need for end-users to hold native tokens in their wallets. The sponsored gas fees will be charged to the developer's credit card on file; hence, not having them to hold native tokens across chains. This abstracts gas fees: one of the biggest problems of building blockchain apps.
Blockchains require gas transaction fees to incentivize blockbuilders and protect networks against DOS attacks. The mechanics for these fees have traditionally been built into the blockchain itself, often requiring gas fees to be paid in native tokens and sourced by the address that initiated the transaction.
The experience of sourcing native tokens by the originating wallet makes it hard for users to interact on-chain and limits the usability of blockchain applications. Depending on the blockchain, there can be different ways to abstract gas. For exmaple:
Circle’s Gas Station utilizes paymasters (on EVM) and fee-payers (on Solana) to create a solution that completely abstracts gas. Circle has deployed paymaster smart contracts and fee-payer wallets that developers can use with programmable wallets.
The solution has the following components:
On EVM chains, the Programmable Wallet must be an ERC-4337-compliant smart contract account. Developers can create these wallets by passing "accountType": "SCA"
in the create wallet API for programmable wallets.
To learn more on creating a SCA wallet follow one of the two guides:
Circle Gas Stations support the following blockchains:
Blockchain Network | PW User-Controlled | PW Developer Controlled |
---|---|---|
Avalanche Fuji Testnet | ❌ | ❌ |
Avalanche Mainnet | ❌ | ❌ |
Arbitrum Mainnet | ✅ | ✅ |
Arbitrum Sepolia Testnet | ✅ | ✅ |
Ethereum Sepolia Testnet | ✅ | ✅ |
Ethereum Mainnet | ✅ | ✅ |
Polygon Amoy Testnet | ✅ | ✅ |
Polygon Mainnet | ✅ | ✅ |
Solana Devnet | ✅ | ✅ |
Solana Mainnet | ✅ | ✅ |
WHAT'S NEXT
Jump into creating your first gassless transaction!