ABI reference

The selectors and event topic0 values on this page are the verified current ABI for IntentSettlerV1, IntentLens, IntentSettlerResolver, and the Permit2 nonce invalidation backstop.

(O) below abbreviates the complete IntentOrder tuple:

(address owner,address recipient,address tokenIn,uint256 amountIn,
 address tokenOut,uint256 startAmountOut,uint256 endAmountOut,
 uint256 startTime,uint256 decayEndTime,uint256 endTime,
 bytes32 appData,uint256 nonce)

Function selectors

IntentSettlerV1

Selector	Signature
0x294470ec	announce((O),bytes)
0xf1bb3cfa	fill((O),bytes,address,bytes)
0xfe0abf21	cancel((O))
0x7bf0397f	cancelSigned((O),uint256,bytes)
0xd94a1dc6	orderHash((O))
0x9946e08f	permitDigest((O))
0x2ac12622	cancelled(bytes32)
0x8d18730e	INTENT_WITNESS_TYPEHASH()
0x28c89130	CANCEL_INTENT_TYPEHASH()
0x6afdd850	PERMIT2()
0x84b0196e	eip712Domain()

Supporting contracts

Contract	Selector	Signature
IntentLens	0xdf99cf18	preview((O))
IntentLens	0xa47cbbe2	previewMany((O)[])
IntentLens	0xab221a76	settler()
IntentSettlerResolver	0xe4056186	resolve(bytes)
IntentSettlerResolver	0x67aad013	encodePayload((address,(O),bytes,bytes))
Permit2	0x3ff9dcb1	invalidateUnorderedNonces(uint256,uint256)

Events and topic0

Event signature	topic0
IntentAnnounced(bytes32,address,bytes32,bytes,bytes)	0x6b7c7ccca26b7cb9642ad63c79054835d7bbfb9801b6c6c642a3ba88ece2350f
IntentFilled(bytes32,address,address,address,address,uint256,uint256,uint256,uint256)	0x3925fc820c061ee4e910271ddac8e8269023cabd3c8a2c1e88c05ef92b29e386
IntentCancelled(bytes32,address,address)	0x318ecdc0215a0703e460331f2f5ff7f65ba21a69045f200c8f5dd60b9f56a5fb

Indexed and data fields

Event	Indexed topics	Data fields
IntentAnnounced	id, owner, appData	bytes order, bytes permit2Sig
IntentFilled	id, owner, solver	recipient, caller, amountIn, requiredOut, receivedOut, aboveFloor
IntentCancelled	id, owner, caller	none

IntentAnnounced.order is abi.encode(IntentOrder). It is complete and self-describing; individual order fields are intentionally not duplicated in the event. IntentFilled.aboveFloor is the amount received above the required floor and sent to the signed recipient.

Custom errors

Error	Signature
InvalidSignature	InvalidSignature()
OrderCancelled	OrderCancelled()
OrderExpired	OrderExpired()
OrderNotYetStarted	OrderNotYetStarted()
ZeroSolver	ZeroSolver()
NotOrderOwner	NotOrderOwner()
SlippageExceeded	SlippageExceeded(uint256 received,uint256 required)
InsufficientRecipientDelivery	InsufficientRecipientDelivery(uint256 delivered,uint256 required)
Reentrancy	Reentrancy()
InexactInputReceived	InexactInputReceived(uint256 received,uint256 expected)
InexactOutputDelivered	InexactOutputDelivered(uint256 delivered,uint256 sent)
SettlerBalanceChanged	SettlerBalanceChanged(address token,uint256 endedWith,uint256 startedWith)
InvalidOrder	InvalidOrder()
SameToken	SameToken()
NativeNotSupportedInOrder	NativeNotSupportedInOrder()

The last three errors come from IntentLib. For how these calls are assembled, see sign an order and fill an order.