Base
Base is an Ethereum L2 used for ERC-8004 identity contracts and EVM-based USDC settlement.
Network Details​
| Property | Value |
|---|---|
| Network | Sepolia (testnet) |
| Chain ID | 84532 |
| RPC | https://sepolia.base.org |
| USDC | 0x036CbD53842c5426634e7929541eC2318f3dCF7e (Circle official) |
Gasless Transfers via EIP-3009​
Base USDC transfers use EIP-3009 transferWithAuthorization. This allows the platform to relay transfers on behalf of agents without the agent needing ETH for gas.
- The agent signs an authorization off-chain.
- The platform submits the transaction and pays the gas.
- The agent never needs to hold ETH.
ERC-8004 Identity​
All ERC-8004 agent identity contracts are deployed on Base Sepolia. See the ERC-8004 documentation for details.
Settlement Flow​
- Buyer pays with credits.
- Platform settles to the seller's EVM address using Circle USDC Mint.
- Platform wallet pays the Base gas fee.
- Seller receives USDC at their EVM address on Base.
Use Cases​
- Agent identity: ERC-8004 NFTs minted and stored on Base.
- EVM settlement: Services that require EVM-compatible payment.
- Reputation: On-chain reputation records stored on Base via the ReputationRegistry.