Wallet Setup

Configure payment wallets and manage multiple addresses for secure GPU rental payments.

Supported wallet types

Hot wallets

MetaMask: Browser extension wallet
WalletConnect: Mobile and desktop wallet connections
Rainbow: Mobile-first Ethereum wallet
Trust Wallet: Mobile wallet with WalletConnect

Hardware wallets

Ledger: Nano S, Nano X, Nano S Plus
Trezor: Model T, Model One
GridPlus: Lattice1

Multi-signature wallets

Gnosis Safe: Team and DAO treasury management
Custom multi-sig: Compatible with EIP-1271

Network configuration

Polygon Amoy (Testnet)

For testing without real funds:

Network details:

Network name: Polygon Amoy
RPC URL: https://rpc-amoy.polygon.technology
Chain ID: 80002
Currency: MATIC
Block explorer: https://amoy.polygonscan.com

Get test tokens:

Visit Polygon Faucet
Select Amoy network
Enter your wallet address
Claim test MATIC tokens

Polygon Mainnet (Coming Soon)

Production network with real cryptocurrency:

Network details:

Network name: Polygon
RPC URL: https://polygon-rpc.com
Chain ID: 137
Currency: MATIC
Block explorer: https://polygonscan.com

Multi-wallet configuration

Add additional wallets

Go to Dashboard > Settings > Wallet Management
Click Add Wallet
Choose wallet type:
- Hot wallet: For frequent, smaller transactions
- Hardware wallet: For secure, larger payments
- Cold storage: For maximum security
- Multi-sig: For team or DAO usage

Set payment preferences

Configure which wallet handles payments:

Connected wallet payments:

Use currently connected wallet for all transactions
Simplest setup for individual users
Wallet must be connected during payment

Custom payment address:

Specify different address for receiving change/refunds
Useful for hardware wallets or multi-sig addresses
Address validation ensures compatibility

Wallet labels and organization

Assign labels to wallets:

Main Trading Wallet
Hardware - Large Payments
Team Multi-sig
Mining Profits

Payment token configuration

Supported tokens

MATIC (recommended):

Native network token
Lowest transaction fees
Fastest confirmation times

USDC:

USD-pegged stablecoin
Predictable pricing
Slightly higher gas costs

USDT:

Alternative USD stablecoin
Widely accepted
Similar fees to USDC

Wrapped ETH (WETH):

Ethereum on Polygon
Higher gas costs
Compatible with Ethereum tooling

Token balance management

Monitor balances for:

Payment token: For rental costs
MATIC: For transaction fees (even when paying with other tokens)

Minimum recommended balances:

10 MATIC for gas fees
$50 equivalent in payment token

Security best practices

Wallet security

Hot wallets:

Enable all security features (PIN, biometrics)
Use strong, unique passwords
Regular software updates
Never share seed phrases

Hardware wallets:

Verify device authenticity
Update firmware regularly
Secure physical storage
Test recovery process

Transaction safety

Before signing:

Verify recipient address matches GPUFlow contract
Confirm transaction amount and gas fees
Check network matches expected (Polygon, not Ethereum)
Review payment token and quantity

Gas fee optimization:

Use Polygon for lower fees (<$0.01 typical)
Avoid Ethereum mainnet for small transactions
Monitor network congestion
Set appropriate gas limits

Troubleshooting

Connection issues

Wallet won’t connect:

Clear browser cache and cookies
Disable ad blockers temporarily
Try incognito/private browsing mode
Update wallet extension

Network switching fails:

Manually add network in wallet
Verify RPC URL and chain ID
Reset wallet if necessary
Contact wallet support

Payment problems

Transaction stuck:

Check wallet for pending transactions
Increase gas price if on Ethereum
Wait for network congestion to clear
Cancel and retry if possible

Insufficient balance:

Verify token balance covers rental cost
Ensure MATIC balance covers gas fees
Check for pending transactions consuming funds
Add funds before retrying payment

Wrong network:

Switch to correct network in wallet
Wait for GPUFlow to detect network change
Refresh page if network switch isn’t recognized
Verify contract addresses match network

Multi-wallet issues

Payment address rejected:

Verify address format (42 characters, starts with 0x)
Ensure address is on correct network
Test with small transaction first
Check address supports EIP-1271 (for multi-sig)

Hardware wallet delays:

Keep device connected during entire transaction
Don’t switch apps while signing
Update hardware wallet firmware
Try different USB cable or port

Advanced configuration

Custom RPC endpoints

For better performance or privacy:

// Example RPC configurations
{
  "Polygon Amoy": "https://rpc-amoy.polygon.technology",
  "Polygon Alternative": "https://polygon-amoy.drpc.org"
}

Multi-sig wallet setup

For team or DAO usage:

Create Gnosis Safe or similar multi-sig wallet
Add as custom payment address in GPUFlow
Configure signing thresholds
Test with small transaction
Document signing process for team

API integration

For programmatic wallet management:

Use GPUFlow API for balance checking
Monitor payment statuses
Automate wallet switching
Implement custom payment flows