FRAX

Ethereum ERC-20 Token

0x853d955acef822db058eb8505911ed77f175b99e

Solidity v0.6.11+commit.5ef660b1

Fungible token following the ERC-20 standard.

🤖

Query this contract from your AI

Reference: frax-eth 0x853d955acef822db058eb8505911ed77f175b99e

Sample prompt: “Tell me the current state of frax-eth”

No AI wired up yet? → mcp.smarts.md

Admin & Risk

Who can change the rules?

Detected role based controls from the verified ABI.

Role Based

Overview

Read Functions

Write Functions

Events

Read Functions

Block #25,169,806 · just now

COLLATERAL_RATIO_PAUSER() view → 0xb25402418ad555013210365a422f9f1206b2dd00719998db06f8a1fbe014641b

Returns

Name	Type	Description
—	bytes32

DEFAULT_ADMIN_ADDRESS() view → 0xa448833bece66fd8803ac0c390936c79b5fd6edf

Returns

Name	Type	Description
—	address

DEFAULT_ADMIN_ROLE() view → 0x0000000000000000000000000000000000000000000000000000000000000000

Returns

Name	Type	Description
—	bytes32

allowance(owner: address, spender: address) view

dev: See {IERC20-allowance}.

Parameters

Name	Type	Description
owner	address
spender	address

Returns

Name	Type	Description
—	uint256

balanceOf(account: address) view

dev: See {IERC20-balanceOf}.

Parameters

Name	Type	Description
account	address

Returns

Name	Type	Description
—	uint256

collateral_ratio_paused() view → true

Returns

Name	Type	Description
—	bool

controller_address() view → 0x0000000000000000000000000000000000000000

Returns

Name	Type	Description
—	address

creator_address() view → 0x234d953a9404bf9dbc3b526271d440cd2870bcd2

Returns

Name	Type	Description
—	address

decimals() view → 18

dev: Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5,05` (`505 / 10 ** 2`). Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is called. NOTE: This information is only used for _display_ purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}.

Returns

Name	Type	Description
—	uint8

eth_usd_consumer_address() view → 0xba6c6eac41a24f9d39032513f66d738b3559f15a

Returns

Name	Type	Description
—	address

eth_usd_price() view → 2,092,830,000

Returns

Name	Type	Description
—	uint256

frax_eth_oracle_address() view → 0x2a6ddd9401b14d0443d0738b8a78fd5b99829a80

Returns

Name	Type	Description
—	address

frax_info() view reverted

Returns

Name	Type	Description
—	uint256
—	uint256
—	uint256
—	uint256
—	uint256
—	uint256
—	uint256
—	uint256

frax_pools(address) view

Parameters

Name	Type	Description
—	address

Returns

Name	Type	Description
—	bool

frax_pools_array(uint256) view

Parameters

Name	Type	Description
—	uint256

Returns

Name	Type	Description
—	address

frax_price() view reverted

Returns

Name	Type	Description
—	uint256

frax_step() view → 2,500

Returns

Name	Type	Description
—	uint256

fxs_address() view → 0x3432b6a60d23ca0dfca7761b7ab56459d9c964d0

Returns

Name	Type	Description
—	address

fxs_eth_oracle_address() view → 0x3b11da52030420c663d263ad4415a8a02e5f8cf8

Returns

Name	Type	Description
—	address

fxs_price() view reverted

Returns

Name	Type	Description
—	uint256

genesis_supply() view → 2,000,000,000,000,000,000,000,000

Returns

Name	Type	Description
—	uint256

getRoleAdmin(role: bytes32) view

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

Returns

Name	Type	Description
—	bytes32

getRoleMember(role: bytes32, index: uint256) view

dev: Returns one of the accounts that have `role`. `index` must be a value between 0 and {getRoleMemberCount}, non-inclusive. Role bearers are not sorted in any particular way, and their ordering may change at any point. WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure you perform all queries on the same block. See the following https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] for more information.

Parameters

Name	Type	Description
role	bytes32
index	uint256

Returns

Name	Type	Description
—	address

getRoleMemberCount(role: bytes32) view

dev: Returns the number of accounts that have `role`. Can be used together with {getRoleMember} to enumerate all bearers of a role.

Parameters

Name	Type	Description
role	bytes32

Returns

Name	Type	Description
—	uint256

globalCollateralValue() view → 518,691,467,559,826,963,223,057,022

Returns

Name	Type	Description
—	uint256

global_collateral_ratio() view → 945,000

Returns

Name	Type	Description
—	uint256

hasRole(role: bytes32, account: address) view

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

Parameters

Name	Type	Description
role	bytes32
account	address

Returns

Name	Type	Description
—	bool

last_call_time() view → 1,687,208,423

Returns

Name	Type	Description
—	uint256

minting_fee() view → 9,500

Returns

Name	Type	Description
—	uint256

name() view → Frax

dev: Returns the name of the token.

Returns

Name	Type	Description
—	string

owner_address() view → 0xb1748c79709f4ba2dd82834b8c82d4a505003f27

Returns

Name	Type	Description
—	address

price_band() view → 10,000

Returns

Name	Type	Description
—	uint256

price_target() view → 980,000

Returns

Name	Type	Description
—	uint256

redemption_fee() view → 4,500

Returns

Name	Type	Description
—	uint256

refresh_cooldown() view → 3,600

Returns

Name	Type	Description
—	uint256

symbol() view → FRAX

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

Returns

Name	Type	Description
—	string

timelock_address() view → 0x8412ebf45bac1b340bbe8f318b928c466c4e39ca

Returns

Name	Type	Description
—	address

totalSupply() view → 275,847,684.01 FRAX

dev: See {IERC20-totalSupply}.

Returns

Name	Type	Description
—	uint256

weth_address() view → 0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2

Returns

Name	Type	Description
—	address

Write Functions

addPool(pool_address: address) nonpayable

Parameters

Name	Type	Description
pool_address	address

approve(spender: address, amount: uint256) nonpayable

dev: See {IERC20-approve}. Requirements: - `spender` cannot be the zero address.approve(address spender, uint256 amount)

Parameters

Name	Type	Description
spender	address
amount	uint256

Returns

Name	Type	Description
—	bool

burn(amount: uint256) nonpayable

dev: Destroys `amount` tokens from the caller. See {ERC20-_burn}.

Parameters

Name	Type	Description
amount	uint256

burnFrom(account: address, amount: uint256) nonpayable

dev: Destroys `amount` tokens from `account`, deducting from the caller's allowance. See {ERC20-_burn} and {ERC20-allowance}. Requirements: - the caller must have allowance for `accounts`'s tokens of at least `amount`.

Parameters

Name	Type	Description
account	address
amount	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

grantRole(role: bytes32, account: address) nonpayable

dev: Grants `role` to `account`. If `account` had not been already granted `role`, emits a {RoleGranted} event. Requirements: - the caller must have ``role``'s admin role.

Parameters

Name	Type	Description
role	bytes32
account	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

pool_burn_from(b_address: address, b_amount: uint256) nonpayable

Parameters

Name	Type	Description
b_address	address
b_amount	uint256

pool_mint(m_address: address, m_amount: uint256) nonpayable

Parameters

Name	Type	Description
m_address	address
m_amount	uint256

refreshCollateralRatio() nonpayable

removePool(pool_address: address) nonpayable

Parameters

Name	Type	Description
pool_address	address

renounceRole(role: bytes32, account: address) nonpayable

dev: Revokes `role` from the calling account. Roles are often managed via {grantRole} and {revokeRole}: this function's purpose is to provide a mechanism for accounts to lose their privileges if they are compromised (such as when a trusted device is misplaced). If the calling account had been granted `role`, emits a {RoleRevoked} event. Requirements: - the caller must be `account`.

Parameters

Name	Type	Description
role	bytes32
account	address

revokeRole(role: bytes32, account: address) nonpayable

dev: Revokes `role` from `account`. If `account` had been granted `role`, emits a {RoleRevoked} event. Requirements: - the caller must have ``role``'s admin role.

Parameters

Name	Type	Description
role	bytes32
account	address

setController(_controller_address: address) nonpayable

Parameters

Name	Type	Description
_controller_address	address

setETHUSDOracle(_eth_usd_consumer_address: address) nonpayable

Parameters

Name	Type	Description
_eth_usd_consumer_address	address

setFRAXEthOracle(_frax_oracle_addr: address, _weth_address: address) nonpayable

Parameters

Name	Type	Description
_frax_oracle_addr	address
_weth_address	address

setFXSAddress(_fxs_address: address) nonpayable

Parameters

Name	Type	Description
_fxs_address	address

setFXSEthOracle(_fxs_oracle_addr: address, _weth_address: address) nonpayable

Parameters

Name	Type	Description
_fxs_oracle_addr	address
_weth_address	address

setFraxStep(_new_step: uint256) nonpayable

Parameters

Name	Type	Description
_new_step	uint256

setMintingFee(min_fee: uint256) nonpayable

Parameters

Name	Type	Description
min_fee	uint256

setOwner(_owner_address: address) nonpayable

Parameters

Name	Type	Description
_owner_address	address

setPriceBand(_price_band: uint256) nonpayable

Parameters

Name	Type	Description
_price_band	uint256

setPriceTarget(_new_price_target: uint256) nonpayable

Parameters

Name	Type	Description
_new_price_target	uint256

setRedemptionFee(red_fee: uint256) nonpayable

Parameters

Name	Type	Description
red_fee	uint256

setRefreshCooldown(_new_cooldown: uint256) nonpayable

Parameters

Name	Type	Description
_new_cooldown	uint256

setTimelock(new_timelock: address) nonpayable

Parameters

Name	Type	Description
new_timelock	address

toggleCollateralRatio() nonpayable

transfer(recipient: address, amount: uint256) nonpayable

dev: See {IERC20-transfer}. Requirements: - `recipient` cannot be the zero address. - the caller must have a balance of at least `amount`.

Parameters

Name	Type	Description
recipient	address
amount	uint256

Returns

Name	Type	Description
—	bool

transferFrom(sender: address, recipient: address, amount: uint256) nonpayable

dev: See {IERC20-transferFrom}. Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}; Requirements: - `sender` and `recipient` cannot be the zero address. - `sender` must have a balance of at least `amount`. - the caller must have allowance for `sender`'s tokens of at least `amount`.

Parameters

Name	Type	Description
sender	address
recipient	address
amount	uint256

Returns

Name	Type	Description
—	bool

Events

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

Name	Type	Indexed
owner	address	✓
spender	address	✓
value	uint256

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

Name	Type	Indexed
from	address	✓
to	address	✓
amount	uint256

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

Name	Type	Indexed
from	address	✓
to	address	✓
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