Chain Abstracted Swap

Build seamless cross-chain swaps powered by Mono Protocol and Privy

Now that your project is set up with Privy and Mono Protocol, let’s create a user interface for chain-abstracted swaps. This is the part that makes users go “wow”—they can swap tokens across different chains without ever dealing with bridges, gas fees, or network settings.

Why It Works

• Simplified UX: Privy handles smooth wallet interactions.

• Chain Abstraction: Mono Protocol ensures users don’t need to think about networks, gas, or bridging.

Executing a Swap

When a user initiates a swap, they’ll be prompted to sign the transaction with their Privy wallet.

Using API Functions

Our chain-abstracted swap flow relies on the API. These are the three core endpoints you’ll be working with:

• GetQuote — fetches a quote for cross-chain swaps or transfers.

• ExecuteQuote — submits a signed quote for execution.

• CheckStatus — polls the API to track transaction status.

Building the Dashboard Page

Next, let’s build a dashboard that allows users to swap USDC ↔ ETH with automatic transaction status updates.

Chain-Abstracted Swap Flow: Key Features

Bidirectional Swapping

• Users can swap USDC → ETH or ETH → USDC.

• The UI updates dynamically based on direction.

Real-Time Quote Estimation

• Entering an amount triggers a quote request.

• Users see the estimated output instantly for transparency.

Balance Display

• Aggregates USDC and ETH balances across all supported chains.

• Balances refresh automatically after successful swaps.

Rmpust Transaction Polling

• Polls transaction status until completion.

• Handles pending, completed, and failed states.

• Stops polling once the transaction finalizes.

Error Handling & Recovery

• Displays clear error messages.

• Cleans up polling intervals to prevent resource leaks.

Enhanced User Experience

• Loading indicators during swap operations.

• Visual feedback for transaction states.

• Links to block explorers for full transparency.

Multichain Asset Visibility

A core strength of this implementation is how it abstracts away multichain complexity:

• Users see one aggregated balance for each token across chains.

• They choose assets (USDC, ETH) without worrying about networks.

• The system handles cross-chain interactions under the hood.

From the user’s perspective, tokens exist in a unified asset space, making the experience as simple as swapping within a single network.