> ## Documentation Index
> Fetch the complete documentation index at: https://docs.melt.finance/llms.txt
> Use this file to discover all available pages before exploring further.

# Smart Buy

> Acquire Melt Assets from any chain in a single transaction

## Overview

The Smart Buy engine consolidates bridging, swapping, and minting into one transaction. Users on any supported chain can acquire Melt Assets without managing gas on multiple chains or performing multi-hop routing manually.

## How It Works

<Steps>
  <Step title="Input Initiation (Source Chain)">
    User starts a transaction on any deBridge-supported chain (Ethereum, Arbitrum, Base, BSC, Solana, and many more) with any supported liquid token.
  </Step>

  <Step title="Cross-Chain Routing">
    deBridge handles the swap and bridge in a single step — converting the input token to USDC and delivering it to HyperEVM.
  </Step>

  <Step title="HyperCore Deposit">
    USDC is deposited from HyperEVM into the user's HyperCore spot balance via the CoreDepositWallet.
  </Step>

  <Step title="Spot Execution (HyperCore)">
    A market buy order executes on the Hyperliquid order book for the target Melt Asset and delivers it to the user's spot balance.
  </Step>
</Steps>

## Fee

A flat **0.30%** fee covers bridging costs, routing logic, gas expenses, and operational convenience. This is frequently lower than the cumulative slippage and gas fees a user would incur performing the bridge, swap, and transfer manually.