sUSDe

Ethereum ERC-20 Token Browse chains

0x9d39a5de30e57443bff2a8307a4256c8797a3497

Solidity v0.8.19+commit.7dd6d404

Fungible token following the ERC-20 standard.

🤖

Query this contract from your AI

Reference: susde-eth 0x9d39a5de30e57443bff2a8307a4256c8797a3497

Sample prompt: "Tell me the current state of susde-eth"

No AI wired up yet? → mcp.smarts.md · Browse chains

Admin & Risk

Who can change the rules?

Block #25,493,373

Detected mintable, ownable, and role based controls from the verified ABI.

Mintable Ownable Role Based

Current controls

Owner: 0x3b0aaf6e6fcd4a7ceef8c92c32dfea9e64dc1862 ↗ Etherscan → smarts

Overview

Read Functions

Write Functions

Events

Read Functions

Block #25,493,373 · just now

DEFAULT_ADMIN_ROLE() view → 0x0000000000000000000000000000000000000000000000000000000000000000

Returns the identifier for the contract's default admin role.✨ AI

Returns

Name	Type	Description
—	bytes32	bytes32 role identifier that represents the DEFAULT_ADMIN_ROLE used for role-based access control✨ AI

DOMAIN_SEPARATOR() view → 0x940284ae30a8660e5c2bae12953bc4bd5a028a0f55e1dd2c19a8c1473d3eb553

Returns the EIP-712 domain separator used to verify typed signatures (EIP-2612).✨ AI

dev: Computed from the contract name, version, chainId, and address per EIP-712; it changes if chainId or address change.✨ AI

Returns

Name	Type	Description
—	bytes32	EIP-712 domain separator (bytes32) used to validate typed signatures such as permit.✨ AI

MAX_COOLDOWN_DURATION() view → 7,776,000

Returns the maximum cooldown duration allowed for unstaking, expressed in seconds.✨ AI

Returns

Name	Type	Description
—	uint24	The maximum cooldown duration in seconds, returned as a uint24.✨ AI

allowance(owner: address, spender: address) view

Returns the remaining token allowance that owner granted to spender.✨ AI

dev: Returns the remaining number of tokens that `spender` will be allowed to spend on behalf of `owner` through {transferFrom}. This is zero by default. This value changes when {approve} or {transferFrom} are called.

Parameters

Name	Type	Description
owner	address	Address that owns the tokens.✨ AI
spender	address	Address authorized to spend tokens on owner's behalf.✨ AI

Returns

Name	Type	Description
—	uint256	Remaining allowance as a uint256 (amount in the token's smallest unit) that spender may transfer from owner.✨ AI

asset() view → 0x4c9edd5852cd905f086c759e8383e09bff1e68b3

Return the address of the underlying asset token used by this staked USDe contract.✨ AI

dev: See {IERC4626-asset}.

Returns

Name	Type	Description
—	address	The ERC-20 token contract address that serves as the underlying asset for staking.✨ AI

balanceOf(account: address) view

Return the token balance for the specified account.✨ AI

dev: Returns the amount of tokens owned by `account`.

Parameters

Name	Type	Description
account	address	Address whose token balance will be returned.✨ AI

Returns

Name	Type	Description
—	uint256	The account's token balance denominated in the token's smallest units (uint256).✨ AI

convertToAssets(shares: uint256) view

Converts a number of vault shares into the corresponding amount of underlying assets.✨ AI

dev: See {IERC4626-convertToAssets}.

Parameters

Name	Type	Description
shares	uint256	Number of vault shares to convert to underlying assets.✨ AI

Returns

Name	Type	Description
—	uint256	Amount of underlying assets that the provided shares currently represent.✨ AI

convertToShares(assets: uint256) view

Convert an asset token amount into the equivalent number of vault shares.✨ AI

dev: See {IERC4626-convertToShares}.

Parameters

Name	Type	Description
assets	uint256	Amount of underlying assets to convert to shares.✨ AI

Returns

Name	Type	Description
—	uint256	Number of shares equivalent to the provided assets, rounded down to avoid exceeding assets.✨ AI

cooldownDuration() view → 86,400

Returns the cooldown duration in seconds required before tokens become eligible to unstake.✨ AI

Returns

Name	Type	Description
—	uint24	The cooldown duration in seconds (uint24) that must elapse before tokens can be unstaked.✨ AI

cooldowns(address) view

Returns the cooldown end timestamp and the underlying amount for a given account.✨ AI

Parameters

Name	Type	Description
—	address

Returns

Name	Type	Description
cooldownEnd	uint104	cooldownEnd: uint104 timestamp (seconds) when the account's cooldown ends.✨ AI
underlyingAmount	uint152	underlyingAmount: uint152 amount of underlying tokens tied to the cooldown for the account.✨ AI

decimals() pure → 18

Return the number of decimal places used by the token.✨ AI

dev: Necessary because both ERC20 (from ERC20Permit) and ERC4626 declare decimals()

Returns

Name	Type	Description
—	uint8	The token's decimals as a uint8 representing the number of decimal places.✨ AI

eip712Domain() view → 0x0f, sUSDe, 1, 1, 0x9d39a5de30e57443bff2a8307a4256c8797a3497, 0x0000000000000000000000000000000000000000000000000000000000000000, []

Return the EIP-712 domain components used for signing permits and meta-transactions.✨ AI

dev: See {EIP-5267}. _Available since v4.9._

Returns

Name	Type	Description
fields	bytes1	fields — single byte indicating which EIP-712 domain fields are present.✨ AI
name	string	name — domain name string (typically the token name) used in the EIP-712 domain.✨ AI
version	string	version — domain version string used in the EIP-712 domain.✨ AI
chainId	uint256	chainId — numeric chain identifier that signatures are bound to.✨ AI
verifyingContract	address	verifyingContract — address of the contract that verifies EIP-712 signatures.✨ AI
salt	bytes32	salt — 32-byte salt field included in the domain for uniqueness.✨ AI
extensions	uint256[]	extensions — array of uint256 extension values for any custom domain fields.✨ AI

getRoleAdmin(role: bytes32) view

Returns the admin role that controls the given role.✨ AI

dev: Returns the admin role that controls `role`. See {grantRole} and {revokeRole}. To change a role's admin, use {_setRoleAdmin}.

Parameters

Name	Type	Description
role	bytes32	Role identifier as a bytes32 value.✨ AI

Returns

Name	Type	Description
—	bytes32	Admin role identifier (bytes32) that can grant or revoke the specified role.✨ AI

getUnvestedAmount() view → 18,252,004,069,444,444,444,444

Returns the amount of USDe tokens that are unvested in the contract.

Returns

Name	Type	Description
—	uint256

hasRole(role: bytes32, account: address) view

Check if an account currently holds a specific role identifier.✨ AI

dev: Returns `true` if `account` has been granted `role`.

Parameters

Name	Type	Description
role	bytes32	Role identifier as a bytes32 value.✨ AI
account	address	Address of the account to check for the role.✨ AI

Returns

Name	Type	Description
—	bool	True if the account has the role, otherwise false.✨ AI

lastDistributionTimestamp() view → 1,783,560,647

Returns the Unix timestamp of the last reward distribution.✨ AI

Returns

Name	Type	Description
—	uint256	Unix timestamp (seconds) when the contract last distributed staking rewards.✨ AI

maxDeposit(address) view

Return the maximum amount the given address can deposit into the contract.✨ AI

dev: See {IERC4626-maxDeposit}.

Parameters

Name	Type	Description
—	address

Returns

Name	Type	Description
—	uint256	Maximum deposit allowed for the given address, expressed in the underlying token's smallest units.✨ AI

maxMint(address) view

Return the maximum amount of tokens the address can mint.✨ AI

dev: See {IERC4626-maxMint}.

Parameters

Name	Type	Description
—	address

Returns

Name	Type	Description
—	uint256	Maximum number of tokens the address is allowed to mint, expressed in the token's smallest unit.✨ AI

maxRedeem(owner: address) view

Return the maximum amount of shares the given owner can redeem right now.✨ AI

dev: See {IERC4626-maxRedeem}.

Parameters

Name	Type	Description
owner	address	Address owning the shares to be potentially redeemed.✨ AI

Returns

Name	Type	Description
—	uint256	Maximum number of shares the owner can redeem, limited by balance and caller allowance.✨ AI

maxWithdraw(owner: address) view

Return the maximum amount of underlying tokens the owner can withdraw right now.✨ AI

dev: See {IERC4626-maxWithdraw}.

Parameters

Name	Type	Description
owner	address	Address whose withdrawable amount is being queried.✨ AI

Returns

Name	Type	Description
—	uint256	Maximum amount of underlying asset the owner may withdraw, expressed in the contract's asset units.✨ AI

name() view → Staked USDe

Returns the ERC-20 token name for this StakedUSDeV2 token.✨ AI

dev: Returns the name of the token.

Returns

Name	Type	Description
—	string	The token name as a string.✨ AI

nonces(owner: address) view

Return the current permit nonce for an account, used to authorize off-chain approvals.✨ AI

dev: See {IERC20Permit-nonces}.

Parameters

Name	Type	Description
owner	address	Account address whose permit nonce is returned.✨ AI

Returns

Name	Type	Description
—	uint256	Current nonce value for the owner that must be included in permit signatures to prevent replay.✨ AI

owner() view → 0x3b0aaf6e6fcd4a7ceef8c92c32dfea9e64dc1862

Returns the address of the contract owner.✨ AI

dev: See {IERC5313-owner}.

Returns

Name	Type	Description
—	address	The address currently set as the contract owner.✨ AI

previewDeposit(assets: uint256) view

Show how many vault shares you would receive for depositing the given amount of assets.✨ AI

dev: See {IERC4626-previewDeposit}.

Parameters

Name	Type	Description
assets	uint256	Amount of underlying assets to deposit (in token smallest units).✨ AI

Returns

Name	Type	Description
—	uint256	Estimated number of shares that would be minted for the provided asset amount.✨ AI

previewMint(shares: uint256) view

Estimate the amount of underlying assets required to mint a given number of vault shares.✨ AI

dev: See {IERC4626-previewMint}.

Parameters

Name	Type	Description
shares	uint256	Number of vault shares to mint.✨ AI

Returns

Name	Type	Description
—	uint256	Amount of underlying asset tokens required to mint the specified shares.✨ AI

previewRedeem(shares: uint256) view

Estimate the amount of underlying tokens you will receive for burning the given shares.✨ AI

dev: See {IERC4626-previewRedeem}.

Parameters

Name	Type	Description
shares	uint256	Number of vault shares to redeem for underlying tokens.✨ AI

Returns

Name	Type	Description
—	uint256	Estimated amount of underlying USDe tokens that will be returned for the given shares.✨ AI

previewWithdraw(assets: uint256) view

Preview how many vault shares you must burn to withdraw a specified amount of underlying assets.✨ AI

dev: See {IERC4626-previewWithdraw}.

Parameters

Name	Type	Description
assets	uint256	Amount of underlying assets you want to withdraw from the vault.✨ AI

Returns

Name	Type	Description
—	uint256	Estimated number of vault shares required to withdraw the requested assets.✨ AI

silo() view → 0x7fc7c91d556b400afa565013e3f32055a0713425

Returns the address of the silo contract associated with this token.✨ AI

Returns

Name	Type	Description
—	address	The address of the silo contract used by StakedUSDeV2.✨ AI

supportsInterface(interfaceId: bytes4) view

Report whether the contract implements the interface identified by the given interfaceId.✨ AI

dev: See {IERC165-supportsInterface}.

Parameters

Name	Type	Description
interfaceId	bytes4	Interface identifier (4-byte) to query, following ERC‑165 conventions.✨ AI

Returns

Name	Type	Description
—	bool	True if the contract implements the interface specified by interfaceId; otherwise false.✨ AI

symbol() view → sUSDe

Returns the token's symbol as a short, human-readable identifier.✨ AI

dev: Returns the symbol of the token, usually a shorter version of the name.

Returns

Name	Type	Description
—	string	The token symbol string used as the ERC-20 identifier (e.g., "sUSDe").✨ AI

totalAssets() view → 1,617,020,291,407,746,241,103,035,954

Returns the amount of USDe tokens that are vested in the contract.

Returns

Name	Type	Description
—	uint256

totalSupply() view → 1,305,630,602.33 sUSDe

Returns the total supply of StakedUSDeV2 tokens.✨ AI

dev: Returns the amount of tokens in existence.

Returns

Name	Type	Description
—	uint256	Total number of tokens in existence as a uint256.✨ AI

vestingAmount() view → 56,889,363,333,333,333,333,333

Returns

Name	Type	Description
—	uint256

Write Functions

acceptAdmin() nonpayable

addToBlacklist(target: address, isFullBlacklisting: bool) nonpayable

Allows the owner (DEFAULT_ADMIN_ROLE) and blacklist managers to blacklist addresses.

Parameters

Name	Type	Description
target	address	The address to blacklist.
isFullBlacklisting	bool	Soft or full blacklisting level.

approve(spender: address, amount: uint256) nonpayable

dev: Sets `amount` as the allowance of `spender` over the caller's tokens. Returns a boolean value indicating whether the operation succeeded. IMPORTANT: Beware that changing an allowance with this method brings the risk that someone may use both the old and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 Emits an {Approval} event.

Parameters

Name	Type	Description
spender	address
amount	uint256

Returns

Name	Type	Description
—	bool

cooldownAssets(assets: uint256) nonpayable

redeem assets and starts a cooldown to claim the converted underlying asset

Parameters

Name	Type	Description
assets	uint256	assets to redeem

Returns

Name	Type	Description
shares	uint256

cooldownShares(shares: uint256) nonpayable

redeem shares into assets and starts a cooldown to claim the converted underlying asset

Parameters

Name	Type	Description
shares	uint256	shares to redeem

Returns

Name	Type	Description
assets	uint256

decreaseAllowance(spender: address, subtractedValue: uint256) nonpayable

dev: Atomically decreases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `subtractedValue`.

Parameters

Name	Type	Description
spender	address
subtractedValue	uint256

Returns

Name	Type	Description
—	bool

deposit(assets: uint256, receiver: address) nonpayable

dev: See {IERC4626-deposit}.

Parameters

Name	Type	Description
assets	uint256
receiver	address

Returns

Name	Type	Description
—	uint256

grantRole(role: bytes32, account: address) nonpayable

admin role cannot be granted externally

Parameters

Name	Type	Description
role	bytes32	bytes32
account	address	address

increaseAllowance(spender: address, addedValue: uint256) nonpayable

dev: Atomically increases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address.

Parameters

Name	Type	Description
spender	address
addedValue	uint256

Returns

Name	Type	Description
—	bool

mint(shares: uint256, receiver: address) nonpayable

dev: See {IERC4626-mint}. As opposed to {deposit}, minting is allowed even if the vault is in a state where the price of a share is zero. In this case, the shares will be minted without requiring any assets to be deposited.

Parameters

Name	Type	Description
shares	uint256
receiver	address

Returns

Name	Type	Description
—	uint256

permit(owner: address, spender: address, value: uint256, deadline: uint256, v: uint8, r: bytes32, s: bytes32) nonpayable

dev: See {IERC20Permit-permit}.

Parameters

Name	Type	Description
owner	address
spender	address
value	uint256
deadline	uint256
v	uint8
r	bytes32
s	bytes32

redeem(shares: uint256, receiver: address, _owner: address) nonpayable

dev: See {IERC4626-redeem}.

Parameters

Name	Type	Description
shares	uint256
receiver	address
_owner	address

Returns

Name	Type	Description
—	uint256

redistributeLockedAmount(from: address, to: address) nonpayable

dev: Burns the full restricted user amount and mints to the desired owner address.

Parameters

Name	Type	Description
from	address	The address to burn the entire balance, with the FULL_RESTRICTED_STAKER_ROLE
to	address	The address to mint the entire balance of "from" parameter.

removeFromBlacklist(target: address, isFullBlacklisting: bool) nonpayable

Allows the owner (DEFAULT_ADMIN_ROLE) and blacklist managers to un-blacklist addresses.

Parameters

Name	Type	Description
target	address	The address to un-blacklist.
isFullBlacklisting	bool	Soft or full blacklisting level.

renounceRole(bytes32, address) nonpayable

dev: Remove renounce role access from AccessControl, to prevent users to resign roles.

Parameters

Name	Type	Description
—	bytes32
—	address

rescueTokens(token: address, amount: uint256, to: address) nonpayable

Allows the owner to rescue tokens accidentally sent to the contract. Note that the owner cannot rescue USDe tokens because they functionally sit here and belong to stakers but can rescue staked USDe as they should never actually sit in this contract and a staker may well transfer them here by accident.

Parameters

Name	Type	Description
token	address	The token to be rescued.
amount	uint256	The amount of tokens to be rescued.
to	address	Where to send rescued tokens

revokeRole(role: bytes32, account: address) nonpayable

admin role cannot be revoked

Parameters

Name	Type	Description
role	bytes32	bytes32
account	address	address

setCooldownDuration(duration: uint24) nonpayable

Set cooldown duration. If cooldown duration is set to zero, the StakedUSDeV2 behavior changes to follow ERC4626 standard and disables cooldownShares and cooldownAssets methods. If cooldown duration is greater than zero, the ERC4626 withdrawal and redeem functions are disabled, breaking the ERC4626 standard, and enabling the cooldownShares and the cooldownAssets functions.

Parameters

Name	Type	Description
duration	uint24	Duration of the cooldown

transfer(to: address, amount: uint256) nonpayable

dev: Moves `amount` tokens from the caller's account to `to`. Returns a boolean value indicating whether the operation succeeded. Emits a {Transfer} event.

Parameters

Name	Type	Description
to	address
amount	uint256

Returns

Name	Type	Description
—	bool

transferAdmin(newAdmin: address) nonpayable

This can ONLY be executed by the current admin

Parameters

Name	Type	Description
newAdmin	address	address

transferFrom(from: address, to: address, amount: uint256) nonpayable

dev: Moves `amount` tokens from `from` to `to` using the allowance mechanism. `amount` is then deducted from the caller's allowance. Returns a boolean value indicating whether the operation succeeded. Emits a {Transfer} event.

Parameters

Name	Type	Description
from	address
to	address
amount	uint256

Returns

Name	Type	Description
—	bool

transferInRewards(amount: uint256) nonpayable

Allows the owner to transfer rewards from the controller contract into this contract.

Parameters

Name	Type	Description
amount	uint256	The amount of rewards to transfer.

unstake(receiver: address) nonpayable

Claim the staking amount after the cooldown has finished. The address can only retire the full amount of assets.

dev: unstake can be called after cooldown have been set to 0, to let accounts to be able to claim remaining assets locked at Silo

Parameters

Name	Type	Description
receiver	address	Address to send the assets by the staker

withdraw(assets: uint256, receiver: address, _owner: address) nonpayable

dev: See {IERC4626-withdraw}.

Parameters

Name	Type	Description
assets	uint256
receiver	address
_owner	address

Returns

Name	Type	Description
—	uint256

Events

AdminTransferRequested(oldAdmin: address, newAdmin: address)

Name	Type	Indexed	Description
oldAdmin	address	✓
newAdmin	address	✓

AdminTransferred(oldAdmin: address, newAdmin: address)

Name	Type	Indexed	Description
oldAdmin	address	✓
newAdmin	address	✓

Approval(owner: address, spender: address, value: uint256)

Name	Type	Indexed
owner	address	✓
spender	address	✓
value	uint256

CooldownDurationUpdated(previousDuration: uint24, newDuration: uint24)

Event emitted when cooldown duration updates

Name	Type	Indexed	Description
previousDuration	uint24
newDuration	uint24

Deposit(sender: address, owner: address, assets: uint256, shares: uint256)

Name	Type	Indexed
sender	address	✓
owner	address	✓
assets	uint256
shares	uint256

EIP712DomainChanged()

LockedAmountRedistributed(from: address, to: address, amount: uint256)

Event emitted when the balance from an FULL_RESTRICTED_STAKER_ROLE user are redistributed

Name	Type	Indexed
from	address	✓
to	address	✓
amount	uint256

RewardsReceived(amount: uint256)

Event emitted when the rewards are received

Name	Type	Indexed	Description
amount	uint256

RoleAdminChanged(role: bytes32, previousAdminRole: bytes32, newAdminRole: bytes32)

Name	Type	Indexed
role	bytes32	✓
previousAdminRole	bytes32	✓
newAdminRole	bytes32	✓

RoleGranted(role: bytes32, account: address, sender: address)

Name	Type	Indexed
role	bytes32	✓
account	address	✓
sender	address	✓

RoleRevoked(role: bytes32, account: address, sender: address)

Name	Type	Indexed
role	bytes32	✓
account	address	✓
sender	address	✓

Transfer(from: address, to: address, value: uint256)

Name	Type	Indexed
from	address	✓
to	address	✓
value	uint256

Withdraw(sender: address, receiver: address, owner: address, assets: uint256, shares: uint256)

Name	Type	Indexed
sender	address	✓
receiver	address	✓
owner	address	✓
assets	uint256
shares	uint256