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Intent Swap (Fusion)
API version: v2.0
Introduction
Quick start
Quick Start - Ethereum
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Orders
Get gasless swap active orders GET
Get settlement contract address GET
Get order status by hash GET
Get multiple orders by hashes POST
Get orders by maker address GET
Get cancelable orders GET
Quoter
Get quote for token swap GET
Get quote with custom auction presets POST
Build Fusion order from quote POST
Relayer
Submit a signed Fusion order POST
Submit multiple signed Fusion orders POST
Migration
Migration from v1.0 to v2.0
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Overview
Filling and canceling Solana Fusion order
WebSocket API
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Swapping a Native Token to ERC-20
Swapping with Permit2
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Docs·APIs·Swap API·Intent Swap (Fusion)·Quoter·v2.0·Get quote with custom auction presets

Get quote with custom auction presets

Retrieves a quote for token swap with custom-defined auction presets. Allows fine-grained control over auction duration, start amount, and price curve. Returns preset configurations, slippage, and quote ID.

POSThttps://api.1inch.com/fusion/quoter/v2.0/{chain}/quote/receive
Supported on:
ArbitrumAvalancheBaseBNB ChainZKsyncEthereumGnosisOptimismPolygonLineaSolanaSonicUnichain

Parameters

chain
* number path
enableEstimate
* boolean query
Enable estimation from 1inch pathfinder and generate quote ID. Set to true to enable order building
fee
integer query
Partner fee in basis points (bps). 100 bps = 1%. Requires fee receiver to be configured
isPermit2
boolean query
Whether the permit is in Permit2 format (Uniswap Permit2 standard)
permit
string query
EIP-2612 permit signature for gasless token approval (hex string)
walletAddress
* string query
Ethereum address of the wallet or contract that will create and sign the Fusion order
amount
* string query
Amount of source token to swap (in token's smallest unit, e.g., wei for ETH)
toTokenAddress
* string query
Destination token contract address (ERC20 or native token wrapper)
fromTokenAddress
* string query
Source token contract address (ERC20 or native token wrapper)

Request Body

CustomPresetInput object
Custom auction preset parameters for fine-grained control over order execution
auctionDuration
* number
Duration of the auction in seconds
auctionStartAmount
* object
Starting amount for the auction
auctionEndAmount
* object
Ending amount for the auction
points
array
Custom auction price curve points
items
string
allowPartialFills
boolean
Whether partial fills are allowed
allowMultipleFills
boolean
Whether multiple fills are allowed
1

Returns

200
400
404
500
GetQuoteOutput object
Quote response containing swap parameters, presets, and pricing information for creating a Fusion order
quoteId
* object
Current generated quote id, should be passed with order
fromTokenAmount
* string
Amount of source token to swap
toTokenAmount
* string
Expected amount of destination token to receive
feeToken
* object
Destination token address
fee
*ResolverFee object
Resolver fee configuration including receiver address and basis points
receiver
* string
Resolver fee receiver
bps
* number
Resolver fee bps
whitelistDiscountPercent
* number
Discount percentage for whitelisted resolvers
integratorFee
* number
Integrator fee in basis points
integratorFeeReceiver
string
Address of integrator fee receiver
integratorFeeShare
* number
Integrator fee share. How much percent from charged fee goes to integrator (rest is sent to protocol). In percents
presets
* any
Various preset types which user can choose when using Fusion
allOf[0]
QuotePresetsClass object
Collection of preset configurations for different execution strategies
fast
* any
Fast preset type
allOf[0]
PresetClass object
Auction preset configuration with timing, amounts, and execution parameters
bankFee
* string
Bank fee amount in token units
auctionDuration
* number
Duration of the auction in seconds
startAuctionIn
* number
Delay before auction starts in seconds
initialRateBump
* number
Initial rate bump percentage (in basis points)
auctionStartAmount
* string
Starting amount for the auction
startAmount
* string
auction start amount taking into account gas bump
auctionEndAmount
* string
Ending amount for the auction
exclusiveResolver
* object
Address of exclusive resolver, if any
tokenFee
* string
Token fee amount
estP
* number
Estimated probability of execution
points
* array
Auction price curve points
items
AuctionPointClass object
Point in the auction price curve defining rate changes over time
delay
* number
Delay in seconds from previous point or auction start time
coefficient
* number
Rate bump coefficient from order min taker amount
allowPartialFills
* boolean
Whether partial fills are allowed
allowMultipleFills
* boolean
Whether multiple fills are allowed
gasCost
*GasCostConfigClass object
Gas cost estimation parameters for order execution
gasBumpEstimate
* number
Estimated gas bump for execution
gasPriceEstimate
* string
Estimated gas price in wei
medium
* any
Medium preset type
allOf[0]
PresetClass object
Auction preset configuration with timing, amounts, and execution parameters
bankFee
* string
Bank fee amount in token units
auctionDuration
* number
Duration of the auction in seconds
startAuctionIn
* number
Delay before auction starts in seconds
initialRateBump
* number
Initial rate bump percentage (in basis points)
auctionStartAmount
* string
Starting amount for the auction
startAmount
* string
auction start amount taking into account gas bump
auctionEndAmount
* string
Ending amount for the auction
exclusiveResolver
* object
Address of exclusive resolver, if any
tokenFee
* string
Token fee amount
estP
* number
Estimated probability of execution
points
* array
Auction price curve points
items
AuctionPointClass object
Point in the auction price curve defining rate changes over time
delay
* number
Delay in seconds from previous point or auction start time
coefficient
* number
Rate bump coefficient from order min taker amount
allowPartialFills
* boolean
Whether partial fills are allowed
allowMultipleFills
* boolean
Whether multiple fills are allowed
gasCost
*GasCostConfigClass object
Gas cost estimation parameters for order execution
gasBumpEstimate
* number
Estimated gas bump for execution
gasPriceEstimate
* string
Estimated gas price in wei
slow
* any
Slow preset type
allOf[0]
PresetClass object
Auction preset configuration with timing, amounts, and execution parameters
bankFee
* string
Bank fee amount in token units
auctionDuration
* number
Duration of the auction in seconds
startAuctionIn
* number
Delay before auction starts in seconds
initialRateBump
* number
Initial rate bump percentage (in basis points)
auctionStartAmount
* string
Starting amount for the auction
startAmount
* string
auction start amount taking into account gas bump
auctionEndAmount
* string
Ending amount for the auction
exclusiveResolver
* object
Address of exclusive resolver, if any
tokenFee
* string
Token fee amount
estP
* number
Estimated probability of execution
points
* array
Auction price curve points
items
AuctionPointClass object
Point in the auction price curve defining rate changes over time
delay
* number
Delay in seconds from previous point or auction start time
coefficient
* number
Rate bump coefficient from order min taker amount
allowPartialFills
* boolean
Whether partial fills are allowed
allowMultipleFills
* boolean
Whether multiple fills are allowed
gasCost
*GasCostConfigClass object
Gas cost estimation parameters for order execution
gasBumpEstimate
* number
Estimated gas bump for execution
gasPriceEstimate
* string
Estimated gas price in wei
custom
any
Custom preset type
allOf[0]
PresetClass object
Auction preset configuration with timing, amounts, and execution parameters
bankFee
* string
Bank fee amount in token units
auctionDuration
* number
Duration of the auction in seconds
startAuctionIn
* number
Delay before auction starts in seconds
initialRateBump
* number
Initial rate bump percentage (in basis points)
auctionStartAmount
* string
Starting amount for the auction
startAmount
* string
auction start amount taking into account gas bump
auctionEndAmount
* string
Ending amount for the auction
exclusiveResolver
* object
Address of exclusive resolver, if any
tokenFee
* string
Token fee amount
estP
* number
Estimated probability of execution
points
* array
Auction price curve points
items
AuctionPointClass object
Point in the auction price curve defining rate changes over time
delay
* number
Delay in seconds from previous point or auction start time
coefficient
* number
Rate bump coefficient from order min taker amount
allowPartialFills
* boolean
Whether partial fills are allowed
allowMultipleFills
* boolean
Whether multiple fills are allowed
gasCost
*GasCostConfigClass object
Gas cost estimation parameters for order execution
gasBumpEstimate
* number
Estimated gas bump for execution
gasPriceEstimate
* string
Estimated gas price in wei
settlementAddress
* string
settlement contract address
nativeOrderFactoryAddress
string
Factory for native order submission, only present when src asset is native
nativeOrderImplAddress
string
Implementation for `nativeOrderFactoryAddress`, only present when src asset is native
whitelist
* array
current executors whitelist addresses
items
string
fast
medium
slow
custom
suggested
* boolean
is it suggested to use Fusion
prices
*TokenPairValue object
Token pair prices in various currencies
usd
*PairCurrencyValue object
Token pair price values in a specific currency
fromToken
* string
Price or volume of the source token
toToken
* string
Price or volume of the destination token
volume
*TokenPairValue object
Token pair prices in various currencies
usd
*PairCurrencyValue object
Token pair price values in a specific currency
fromToken
* string
Price or volume of the source token
toToken
* string
Price or volume of the destination token
source
string
Server-resolved source tracking code. SDK clients should use this for order building.
surplusFee
* number
Surplus fee in percent
JSON
1

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