Swapping AuUSD for USDC

This article explains how to swap your AuUSD for USDC using the Uniswap liquidity pool, including understanding slippage, optimizing exchange rates, and managing large swaps.

By the end of this guide, you'll know how to convert your AuUSD to USDC efficiently and understand how the Uniswap pool works.

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Before You Begin

Prerequisites Checklist

Before swapping your AuUSD, ensure you have:

AuUSD Holdings:

• AuUSD in your connected wallet

• Either borrowed from a vault or purchased elsewhere

• Know the amount you want to swap

Network Requirements:

• Wallet connected to Polygon network

• Sufficient POL for gas fees (at least 0.2 POL recommended)

• POL needed for approval and swap transactions

General:

• Understood the difference between AuUSD and USDC

• Reviewed current exchange rates

• Know your reason for swapping

Understanding the Swap Mechanism

What is Uniswap?

Uniswap is a decentralized exchange (DEX) that allows you to swap tokens directly from your wallet without creating an account or going through a centralized platform.

Key Features:

• Non-custodial (you always control your tokens)

• Permissionless (anyone can use it)

• Automated (smart contracts handle everything)

• Transparent (all transactions on-chain)

The AuUSD/USDC Liquidity Pool

The AuUSD/USDC pool on Uniswap V2 is a smart contract that:

• Holds reserves of both AuUSD and USDC

• Allows instant swaps between the two

• Charges a small fee of 0.3% which goes to liquidity providers

• Maintains exchange rates through supply and demand

How the Pool Works:

• When you swap AuUSD for USDC, you add AuUSD to the pool

• The pool gives you USDC in return

• The exchange rate adjusts based on the swap size

• Larger swaps have more impact on the rate

Exchange Rate Basics:

• Target rate: 1 AuUSD = 1 USDC (1:1 peg)

• Actual rate varies slightly based on pool balance

• Small variations are normal

• Large deviations indicate temporary imbalance

Step-by-Step Swap Process

1

Access Uniswap Interface

1. Navigate to https://dapp.auresources.io

2. In the navigation menu, click the "Markets > Secondary market" link

3. Or access the Uniswap interface directly

4. Ensure your wallet is connected to Polygon network

2

Configure Your Swap

1. Enter amount:

   • Type the amount of AuUSD you want to swap

   • Or enter the amount of USDC you want to receive

   • Interface automatically calculates the other side

2. Review swap details:

   • Exchange rate displayed

   • USDC you'll receive

   • Price impact percentage

   • Liquidity provider fee (0.3%)

   • Estimated gas fee

3

Understanding Swap Information

Before proceeding, review these key metrics:

Exchange Rate

• Shows how much USDC per 1 AuUSD

• Should be close to 1.0 under normal conditions

• Example: "1 AuUSD = 0.997 USDC"

• Rate includes the 0.3% liquidity provider fee

• Click to reverse view: "1 USDC = 1.003 AuUSD"

Price Impact

The percentage your swap affects the pool balance:

• Under 0.5%: Excellent, minimal impact

• 0.5-1%: Good, normal for medium swaps

• 1-3%: Moderate, consider splitting swap

• Over 3%: High, definitely split into smaller amounts

Minimum Received

• Least amount of USDC you'll accept after slippage

• Transaction fails if you'd receive less

• Protects you from unfavorable rate changes

• Accounts for slippage tolerance setting

Liquidity Provider Fee

• Fixed 0.3% on all Uniswap V2 swaps

• Goes to liquidity providers

• Already included in displayed rate

• Cannot be adjusted

4

Token Approval (First Time Only)

If this is your first time swapping AuUSD on Uniswap:

1. Click "Approve AuUSD" or "Enable AuUSD"

2. Wallet popup appears

3. Review carefully:

   • Token: AuUSD

   • Spender: Uniswap V2 Router

   • Amount: Usually unlimited (saves gas on future swaps)

4. Confirm in wallet

5. Wait for confirmation (5-30 seconds)

6. "Approve" button changes to "Swap"

About Unlimited Approval:

• Saves gas on future swaps (no re-approval needed)

• Standard practice on Uniswap

• Can revoke later if desired

• Only applies to this specific token and contract

5

Execute the Swap

1. Click "Swap" button

2. Review confirmation popup showing:

   • AuUSD being sent

   • USDC you'll receive (minimum)

   • Price impact

   • Total fees (0.3% + gas)

3. Confirm in your wallet

4. Wait for transaction confirmation (5-30 seconds)

5. Success message appears

6. USDC is now in your wallet

After Your Swap

Verifying the Results

Once swap completes:

1. Check wallet: USDC should appear immediately

2. Verify amount: Should be at or above "Minimum received"

3. Review transaction: Click hash for full details on PolygonScan

4. Save record: Note amount, rate, and transaction hash

Transaction Details on PolygonScan

Click transaction hash to see:

• Exact tokens exchanged

• Actual exchange rate received

• Gas fee paid in POL

• Block number and timestamp

• Full event logs

• Link to share with support if needed

Advanced Tips

Watching for Pool Imbalances

Sometimes the pool becomes temporarily imbalanced:

When AuUSD trades at premium (1 AuUSD = 1.01 USDC):

• Good time to swap AuUSD for USDC

• You get bonus USDC

• Arbitrageurs will restore balance soon

• Take advantage before it normalizes

When AuUSD trades at discount (1 AuUSD = 0.99 USDC):

• Wait if not urgent

• Pool will likely rebalance upward

• Or swap anyway if you need USDC immediately

• Small discount is usually temporary

Troubleshooting

Interface Issues

Can't See AuUSD Token:

• Click "Select token" dropdown

• Paste the AuUSD contract address

Swap Button Disabled:

• Check wallet is connected

• Verify on Polygon network

• Ensure sufficient AuUSD balance

• Confirm enough POL for gas

• Try disconnecting and reconnecting wallet

Amounts Not Updating:

• Refresh the page

• Clear browser cache

• Try different browser (Chrome/Brave recommended)

• Disconnect and reconnect wallet

Transaction Issues

Stuck on "Pending":

• Check transaction on PolygonScan

• Usually confirms within 1 minute on Polygon

• Can speed up in wallet if urgent

• Contact support if stuck over 10 minutes

"Transaction Underpriced":

• Network congestion

• Increase gas price in wallet settings

• Wait a few minutes and retry

• Polygon congestion is usually brief

Approved But Can't Swap:

• Wait 10-20 seconds after approval confirms

• Refresh the page

• Disconnect and reconnect wallet

• Verify approval transaction fully confirmed

Getting Different Amount Than Expected:

• Check if slippage was exceeded

• Review actual price impact

• Verify pool wasn't imbalanced

• This is normal within slippage tolerance

Key Takeaways

Swapping AuUSD for USDC on Uniswap V2 is straightforward. The process requires two transactions on your first swap: token approval and the actual swap. Uniswap V2 charges a fixed 0.3% fee on all swaps, which goes to liquidity providers and is already included in the displayed exchange rate.

Always review the price impact percentage before confirming. Under 1% is normal and acceptable. Over 3% means you should definitely split the swap. Keep sufficient POL in your wallet for gas fees, and remember you can hold AuUSD longer if current pool conditions aren't favorable.