Token Approvals

Cross-standard approval flows that are not tied to a single asset page — signature-based ERC-20 permits and ERC-1155 operator grants. On-chain ERC-20 allowances live on ERC-20; ERC-721 approve / setApprovalForAll on ERC-721.

ERC-20 permit

EIP-2612 approves a spender with an off-chain signature instead of an on-chain approve transaction. Wallets show it as EIP-712 typed data.

RPC: eth_signTypedData_v4(address, typedDataJson)

The demo uses a fictional token domain — only the signing UI is exercised.