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.Amount to swap or liquidity to add (in wei). Optional for some operations.
Recipient address for the resulting tokens / position.
Slippage tolerance, in percent.
0.5 = 0.5%.Account initiating the zap.
Encoded Permit2 data for ERC20 tokens (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.
Response
"success" on 200.Estimated output amount (in destination token wei).
Approval to grant before executing.
Ordered list of steps. Each step:
action, protocol, input[], output[], fee[], estimatedDuration.Examples
Last modified on May 4, 2026