At a glance
| Mainnet | Sepolia (testnet) | |
|---|---|---|
| Network ID | eip155:8453 | eip155:84532 |
| Native asset | ETH | ETH |
| Native decimals | 18 | 18 |
| Stablecoin | USDC ERC-20 | USDC ERC-20 |
| Stablecoin contract | 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
| Stablecoin decimals | 6 | 6 |
| Confirmation time | About 2 seconds | About 2 seconds |
| Typical fee | $0.001 to $0.05 | Free (Sepolia faucet) |
Amount-only binding
Base is EVM, and EVM ERC-20 transfers don’t carry a memo. AlgoVoi binds Base checkouts to specific links by amount uniqueness. Each checkout generates a slightly randomised amount (within 0.000001 USDC of the target) so two open checkouts for the same amount can be distinguished by their actual on-chain transfer values. This means:- A Base checkout’s amount in the JSON response is what your customer must send exactly.
- Don’t strip cents or round.
- The link’s
amount_microunitsis authoritative.
Payout addresses
Standard Ethereum-format addresses (40 hex chars, optional0x prefix). EIP-55 mixed-case checksumming is supported but not required. Base uses the same addresses as Ethereum mainnet, so an address you control on mainnet works on Base out of the box (different state, same identity).
Wallets
- Coinbase Wallet
- Rainbow
- MetaMask (with Base added as a custom network)
See also
- Tempo for the other EVM-style chain we support
- x402 protocol for the payment protocol layer