V3OpenFeeAdapter

Ethereum

0xf2371551fe3937db7c750f4dfabe5c2fffdcbf5a

Solidity v0.8.29+commit.ab55807c

🤖

Query this contract from your AI

Reference: 0xf2371551fe3937db7c750f4dfabe5c2fffdcbf5a

Sample prompt: “Tell me the current state of eth/0xf2371551fe3937db7c750f4dfabe5c2fffdcbf5a”

No AI wired up yet? → mcp.smarts.md

Admin & Risk

Who can change the rules?

Block #25,170,020

Detected ownable controls from the verified ABI.

Ownable

Current controls

Owner: 0x1a9c8182c09f50c8318d769245bea52c32be35bc ↗ Etherscan → smarts

Overview

Read Functions

Write Functions

Events

Read Functions

Block #25,170,020 · just now

FACTORY() view → 0x1f98431c8ad98523631ae4a59f267346ea31f984

Returns

Name	Type	Description
—	address	The Uniswap V3 Factory contract.

TOKEN_JAR() view → 0xf38521f130fccf29db1961597bc5d2b60f995f85

Returns

Name	Type	Description
—	address	The address where collected fees are sent.

ZERO_FEE_SENTINEL() view → 255

Sentinel value stored to represent an explicit zero fee (disabled)

dev: type(uint8).max because 0 in storage means "not set"

Returns

Name	Type	Description
—	uint8

defaultFee() view → 68

The global default fee applied when no tier or pool override is set

Returns

Name	Type	Description
—	uint8	The encoded global default fee value

defaultFees(feeTier: uint24) view

Legacy getter for backwards compatibility

dev: Applies waterfall resolution: fee tier default → global default. Returns 0 only when neither a tier default nor a global default is configured.

Parameters

Name	Type	Description
feeTier	uint24

Returns

Name	Type	Description
—	uint8

feeSetter() view → 0x1a9c8182c09f50c8318d769245bea52c32be35bc

Returns

Name	Type	Description
—	address	The authorized address to set fees-by-fee-tier

feeTierDefaults(feeTier: uint24) view

Returns the fee tier default for a given fee tier

Parameters

Name	Type	Description
feeTier	uint24	The fee tier to query

Returns

Name	Type	Description
feeValue	uint8	feeValue The encoded fee value for the tier (0 if not set)

feeTiers(uint256) view

Parameters

Name	Type	Description
—	uint256

Returns

Name	Type	Description
—	uint24	The fee tiers enabled on the factory

getFee(pool: address) view

Resolves the fee for a pool using waterfall: pool override → tier default → global

Parameters

Name	Type	Description
pool	address	The pool address to resolve fee for

Returns

Name	Type	Description
fee	uint8	fee The resolved fee value (decoded)

owner() view → 0x1a9c8182c09f50c8318d769245bea52c32be35bc

Returns the current owner of the factory

dev: Can be changed by the current owner via setOwner

Returns

Name	Type	Description
—	address	The address of the factory owner

poolOverrides(pool: address) view

Returns the pool-specific override for a given pool

Parameters

Name	Type	Description
pool	address	The pool address to query

Returns

Name	Type	Description
feeValue	uint8	feeValue The encoded fee value for the pool (0 if not set)

Write Functions

batchTriggerFeeUpdate(pairs: tuple[]) nonpayable

Triggers fee updates for multiple pairs of tokens. Permissionless.

Parameters

Name	Type	Description
pairs	tuple[]	The pairs of two tokens. There may be multiple pools initialized from the same pair.

batchTriggerFeeUpdateByPool(pools: address[]) nonpayable

Triggers fee updates for multiple pools directly. Permissionless.

Parameters

Name	Type	Description
pools	address[]	The pool addresses to update the fees for.

clearFeeTierDefault(feeTier: uint24) nonpayable

Clears the fee tier default, falling back to global default

dev: Only callable by `feeSetter`

Parameters

Name	Type	Description
feeTier	uint24	The fee tier to clear

clearPoolOverride(pool: address) nonpayable

Clears the pool override, falling back to tier/global defaults

dev: Only callable by `feeSetter`

Parameters

Name	Type	Description
pool	address	The pool address to clear

collect(collectParams: tuple[]) nonpayable

Collects protocol fees from the specified pools to the designated `TOKEN_JAR`

Parameters

Name	Type	Description
collectParams	tuple[]	Array of collection parameters for each pool.

Returns

Name	Type	Description
amountsCollected	tuple[]	amountsCollected Array of collected amounts for each pool.

enableFeeAmount(fee: uint24, tickSpacing: int24) nonpayable

Enables a fee amount with the given tickSpacing

dev: Fee amounts may never be removed once enabled

Parameters

Name	Type	Description
fee	uint24	The fee amount to enable, denominated in hundredths of a bip (i.e. 1e-6)
tickSpacing	int24	The spacing between ticks to be enforced for all pools created with the given fee amount

setDefaultFee(feeValue: uint8) nonpayable

Sets the global default fee value

dev: Only callable by `feeSetter`. Used as fallback when no tier/pool override exists.

Parameters

Name	Type	Description
feeValue	uint8	The fee value (0 or in range [4,10] for each 4-bit component)

setDefaultFeeByFeeTier(feeTier: uint24, defaultFeeValue: uint8) nonpayable

Legacy function for backwards compatibility

dev: Renamed to setFeeTierDefault; this function is kept for existing integrations

Parameters

Name	Type	Description
feeTier	uint24
defaultFeeValue	uint8

setFactoryOwner(newOwner: address) nonpayable

Transfer ownership of the Uniswap V3 Factory to a new address

dev: Only callable by the owner of this contract. This is a critical operation as it transfers control of the V3 Factory

Parameters

Name	Type	Description
newOwner	address	The address that will become the new owner of the V3 Factory

setFeeSetter(newFeeSetter: address) nonpayable

Sets a new fee setter address.

dev: Only callable by `owner`

Parameters

Name	Type	Description
newFeeSetter	address	The new address authorized to set fees.

setFeeTierDefault(feeTier: uint24, feeValue: uint8) nonpayable

Sets the default fee for a specific fee tier

dev: Only callable by `feeSetter`

Parameters

Name	Type	Description
feeTier	uint24	The fee tier to set the default for
feeValue	uint8	The fee value (0 or in range [4,10] for each 4-bit component)

setPoolOverride(pool: address, feeValue: uint8) nonpayable

Sets a pool-specific fee override

dev: Only callable by `feeSetter`. Takes precedence over tier and global defaults.

Parameters

Name	Type	Description
pool	address	The pool address to override
feeValue	uint8	The fee value (0 or in range [4,10] for each 4-bit component)

storeFeeTier(feeTier: uint24) nonpayable

Stores a fee tier.

dev: Must be a fee tier that exists on the Uniswap V3 Factory.

Parameters

Name	Type	Description
feeTier	uint24	The fee tier to store.

transferOwnership(newOwner: address) nonpayable

///////////////////////////////////////////////////////////

Parameters

Name	Type	Description
newOwner	address

triggerFeeUpdate(pool: address) nonpayable

Triggers a fee update for a single pool. Permissionless.

Parameters

Name	Type	Description
pool	address	The pool address to update the fee for.

triggerFeeUpdate(token0: address, token1: address) nonpayable

Triggers a fee update for a single pool. Permissionless.

Parameters

Name	Type	Description
token0	address
token1	address

Events

DefaultFeeUpdated(feeValue: uint8)

Emitted when the global default fee is updated

Name	Type	Indexed	Description
feeValue	uint8		The new global default fee value

FeeSetterUpdated(oldFeeSetter: address, newFeeSetter: address)

Emitted when the fee setter is updated

Name	Type	Indexed	Description
oldFeeSetter	address	✓	The previous fee setter address
newFeeSetter	address	✓	The new fee setter address

FeeTierDefaultCleared(feeTier: uint24)

Emitted when a fee tier default is cleared (deleted from storage)

Name	Type	Indexed	Description
feeTier	uint24	✓	The fee tier that was cleared

FeeTierDefaultUpdated(feeTier: uint24, feeValue: uint8)

Emitted when a fee tier default is updated

Name	Type	Indexed	Description
feeTier	uint24	✓	The fee tier that was updated
feeValue	uint8		The new fee value for the tier

FeeUpdateTriggered(caller: address, pool: address, feeValue: uint8)

Emitted when a fee update is triggered for a pool

Name	Type	Indexed	Description
caller	address	✓	The address that triggered the update
pool	address	✓	The pool that was updated
feeValue	uint8		The new fee value applied

OwnershipTransferred(user: address, newOwner: address)

///////////////////////////////////////////////////////////

Name	Type	Indexed	Description
user	address	✓
newOwner	address	✓

PoolOverrideCleared(pool: address)

Emitted when a pool override is cleared (deleted from storage)

Name	Type	Indexed	Description
pool	address	✓	The pool that was cleared

PoolOverrideUpdated(pool: address, feeValue: uint8)

Emitted when a pool override is updated

Name	Type	Indexed	Description
pool	address	✓	The pool that was updated
feeValue	uint8		The new fee value for the pool