EigenLayer (eigenlayer)

​

What it offers

• depositIntoStrategy: Deposit LSTs (stETH, rETH, cbETH) into a restaking strategy
• delegateTo: Delegate restaked assets to an operator (via DelegationManager)
• undelegate: Undelegate from an operator, initiating withdrawal

​

Notes

• Foundation of the restaking ecosystem
• Approve LST token to StrategyManager before depositing
• Each LST has its own strategy contract (stETH, rETH, cbETH listed above)
• Withdrawal has a 7-day delay period after undelegating
• delegateTo requires approverSignatureAndExpiry tuple - use empty bytes + far-future expiry for typical cases

​

Its names in a program

function main() {
  // Ethereum's cbETHStrategy, `0x54945180dB7943c0ed0FEE7EdaB2Bd24620256bc`.
  require(Eigenlayer.CbETHStrategy != 0);
}

​

Deployments

​

ABI

​

DelegationManagerABI

• delegateTo(address operator, (bytes signature, uint256 expiry) approverSignatureAndExpiry, bytes32 approverSalt)
• undelegate(address staker) returns (bytes32[] withdrawalRoots)
• isDelegated(address staker) view returns (bool)

​

StrategyABI

• sharesToUnderlyingView(uint256 amountShares) view returns (uint256)
• underlyingToSharesView(uint256 amountUnderlying) view returns (uint256)

​

StrategyManagerABI

• depositIntoStrategy(address strategy, address token, uint256 amount) returns (uint256 shares)
• stakerDepositShares(address staker, address strategy) view returns (uint256 shares)

​

Next steps

• Protocols: the other protocols, by what they do.
• Protocols and tokens: calling a contract by its namespace, or through its ABI.
• Glossary: the words these pages use, in plain terms.