MFCard - Easily integrate Credit Card payments in iOS App / Customisable Card UI. ObjectiveLuhn - Luhn Credit Card Validation Algorithm. SwiftLuhn - Debit/Credit card validation port of the Luhn Algorithm in Swift. Fuzi - A rapid & lightweight XML & HTML parser in Swift with XPath & CSS guidance. XMLCoder - Encoder & Decoder for XML employing Swift's Codable protocols.