This Currency Converter API allows users to convert one currency to another using real-time exchange rates. The API is simple to use, requiring only the amount to convert, the currency code to convert from, and the currency code to convert to. The API uses the exchange rate data from a trusted source to ensure accurate conversions. The API returns the converted amount in the specified currency, rounded to 2 decimal places, in a string format that includes the original amount, the original currency code, the converted amount, and the converted currency code. This API can be easily integrated into any web or mobile application that requires currency conversion functionality.

an API (Application Programming Interface) that accepts a URL (Uniform Resource Locator) as input and returns an image of a QR code (Quick Response code). QR codes are two-dimensional barcodes that can be scanned with a smartphone or QR code reader to quickly access information or a website. The API described in this sentence likely provides a way for developers to generate QR codes for use in their own applications or websites.