Web3 SDK Wallet Operations FAQs

Question 1

What is the two-wallet system in the Bankr SDK?

Accepted Answer

It separates the Payment Wallet (required for $0.01 USDC API micropayments) from the Context Wallet (receives tokens/NFTs). This enhances security by keeping trading funds in a separate address.

Question 2

What are the requirements for the payment wallet?

Accepted Answer

The payment wallet must have a small USDC balance on the Base chain to cover x402 micropayments (typically $0.01 per API request).

Question 3

Can I use different wallets for different transaction requests?

Accepted Answer

Yes, you can provide a specific walletAddress in the prompt options to override the default receiving address for that specific request only.

Question 4

How do I securely provide my private key to the SDK?

Accepted Answer

Private keys should always be stored in environment variables (e.g., BANKR_PRIVATE_KEY) and never hardcoded. Use a .env file and ensure it is included in your .gitignore.

Question 5

What is the purpose of the getWalletAddress() method?

Accepted Answer

It returns the address currently configured for context; if no override is provided, it returns the address derived from the payment wallet's private key.

Web3 SDK Wallet Operations

About

Key Features

Use Cases

Web3 SDK Wallet Operations

About

Key Features

Use Cases