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You may want to allow users to perform actions with their Abstract Global Wallet (AGW) based on information from their Ethereum Mainnet wallet, for example to:
  • Check if a user is whitelisted for an NFT mint based on their Ethereum Mainnet wallet.
  • Read what NFTs or tokens the user holds in their Ethereum Mainnet wallet.
For these use cases, Abstract provides the DelegateRegistry contract that allows users to create a link between their Ethereum Mainnet wallet and their AGW. This link is created by having users sign a transaction on Ethereum Mainnet that includes their Abstract Global Wallet address; creating a way for applications to read what wallets are linked to an AGW. The linking process is available in the SDK to enable you to perform the link in your application, however users can also perform the link directly on Abstract’s Global Linking page.

Abstract Global Linking Site

Link an Ethereum Mainnet wallet to your Abstract Global Wallet.

Abstract Global Linking Site Testnet

Link a Sepolia Testnet wallet to your testnet Abstract Global Wallet.

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How It Works

1

Link wallets

On Ethereum Mainnet, users submit a transaction that calls the delegateAll function on the DelegateRegistry contract to initialize a link between their Ethereum Mainnet wallet and their Abstract Global Wallet:Once submitted, the delegation information is bridged from Ethereum to Abstract via the BridgeHub contract to become available on Abstract.You can trigger this flow in your application by using the linkToAgw function.
2

Check linked wallets

To view the linked EOAs for an AGW and vice versa, the ExclusiveDelegateResolver contract can be used, which contains the following functions to read delegation information:
Given an EOA address as input, returns either:
  • ✅ If the EOA has an AGW linked: the AGW address.
  • ❌ If the EOA does not have an AGW linked: the EOA address.
Use this to check if an EOA has an AGW linked, or to validate that an AGW is performing a transaction on behalf of a linked EOA
function exclusiveWalletByRights(
  address vault,    // The EOA address
  bytes24 rights   // The rights identifier to check
) returns (address)
Use the following rights value to check the AGW link:
bytes24 constant _AGW_LINK_RIGHTS = bytes24(keccak256("AGW_LINK"));
Given an AGW address as input, returns a list of L1 wallets that have linked to the AGW. Use this to check what EOAs have been linked to a specific AGW (can be multiple).
function delegatedWalletsByRights(
  address wallet,   // The AGW to check delegations for
  bytes24 rights   // The rights identifier to check
) returns (address[])
Use the following rights value to check the AGW link:
bytes24 constant _AGW_LINK_RIGHTS = bytes24(keccak256("AGW_LINK"));
Given an NFT contract address and token ID as input, returns:
  • ✅ If the NFT owner has linked an AGW: the AGW address.
  • ❌ If the NFT owner has not linked an AGW: the NFT owner address.
function exclusiveOwnerByRights(
  address contractAddress,  // The ERC721 contract address
  uint256 tokenId,         // The token ID to check
  bytes24 rights           // The rights identifier to check
) returns (address)
Use the following rights value to check the AGW link:
bytes24 constant _AGW_LINK_RIGHTS = bytes24(keccak256("AGW_LINK"));
This information can be read using the SDK methods; getLinkedAgw and getLinkedAccounts.