Swift

Swift Package Manager requires Swift tools 6.2 or newer. In Xcode add https://github.com/devdasx/wallet-hd-derivation-kit from 1.0.0, or add .package(url: "https://github.com/devdasx/wallet-hd-derivation-kit.git", from: "1.0.0"). CocoaPods users add pod 'WalletHDDerivationKit', '~> 1.0'.

import WalletHDDerivationKit

let words = ProcessInfo.processInfo.environment["WALLET_MNEMONIC"]!
let result = try WalletHDDerivationKit.deriveAddress(
    source: .mnemonic(words), chain: .bitcoin, scriptType: .p2wpkh
)
print(result.address)

deriveAccountPrivateKey is the explicit secret-export API. Normal result types are Codable and contain no private field. Runnable example.