Fuse API
Get Quote
Quote a Fuse intent - same-chain or cross-chain, swap or zap.
POST
Returns the best path for the requested operation, including approval data, expected output, and per-step fees.
Body
Source token address. Use
0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for native.Source chain ID.
Destination token (or LP/NFT) address.
Destination chain ID. Same as
srcChainId for same-chain.Slippage tolerance, in percent.
0.5 = 0.5%.Amount to swap or liquidity to add (in wei). Optional for some operations.
Account initiating the zap. Optional for a quote; required when building the transaction.
Recipient address for the resulting tokens / position. Optional for a quote; required when building the transaction.
Address to receive refunds if the operation fails partway. Optional for a quote; required when building the transaction.
Pre-signed permit data for the source token (optional).
NFT-related operation details (e.g. Uniswap V3 LP NFT).
Pool-specific details for liquidity operations.
Whitelist of bridges to consider.
Whitelist of swap protocols to consider.
Integrator fee configuration.
Response
"success" on 200.Array of approvals to grant before executing (one per token that needs approval; empty if none needed).
Final output amount(s) of the whole zap.
Any leftover/unswept amounts produced by the route. Same shape as
data.output items above.Ordered list of route steps.
Examples
Last modified on July 14, 2026