Interzoid Exchange Rate API is easy to integrate APIs that deliver currency rates and global currency conversion. Exchange rates from major currencies around the world provide international customers, Web site visitors, and application users a much richer and more localized experience dealing with commerce transactions and financial data.  

OKAPI Currency exchange rates API is a currency conversion and exchange rates API. This API helps you to lookup currency exchange rates and compares multiple currencies.  

Exchange rates API is a free service for current and historical foreign exchange rates published by the European Central Bank This API is compatible with any application and programming languages.  

Fixer is a simple and lightweight API for current and historical foreign exchange (forex) rates and currency conversion for 170 world currencies. This API is built on top of a powerful back-end infrastructure allowing for high availability and response times below 50ms for specific API requests.  

Rates API is a free service for current and historical foreign exchange rates built on top of data published by the European Central Bank. This API is compatible with any application and programming languages.  

The Frankfurter API tracks foreign exchange reference rates published by the European Central Bank. The data refreshes around 16:00 CET every working day. It a free and open-source currency data API that integrates seamlessly with libraries like Money.js and Dinero.js.  

OANDA provides a powerful, accurate and reliable exchange rates API that offers one of the largest data sets of its kind. This API provides the gold standard in foreign exchange rates data to thousands of businesses globally. Average and historical rates, real-time, tick-level, and more, all in one solution.  

ExchangeRate-API is a product of Rooikat Holdings (Pty) Ltd. This currency conversion API has been used by tens of thousands of developers and programmers. It has a number of customers using the exchange rate data to feed spreadsheet models and scripts that process the data for academic projects, personal research, etc.  

CurrencyDataFeed.com API is a REST API that provides real-time exchange rates, historical exchange rates and conversion service between currencies for more than 100 currency pairs and precious metals. Apart from this, in it, cryptocurrency real-time rates and change values are also available.  

Open Exchange Rates is a currency conversion API that consistent, reliable exchange rate data and currency conversion for your business. This robust, clean API is built by developers for developers that let you focus on building great products instead of wasting time in building tools for currency conversions.  

currencylayer provides an easy-to-integrate REST API with real-time and historical exchange rates for 168 world currencies and precious metals, delivered in universally usable and easily parseable JSON format, and compatible with any application. The API is a product built and maintained by apilayer, the company behind industry-leading SaaS products.  

XE Currency Data API is a currency converter API that provides globally trusted exchange rates of currency for your business. Further, it fetches the data of daily or live rates. You can also track the history of the exchange rate using this API.  

PDFix is one of the fastest and most accurate PDF manipulation tool ever. PDF to responsive HTML conversion, extract data from PDF, PDF forms to HTML forms, PDF to word are some of the conversions done by this tool. The PDFix SDK is available for Mac OS X, Windows, Linux, iOS, Android platforms. Integrate this API into your applications by using C++, Java, C# or .NET Framework  

VeryPDF Cloud API is a cloud service API that is provided for developers. VeryPDF Cloud is a cloud-based document generation, conversion and automation platform. It gives developers total control on all platforms over documents and file formats. This API makes it simple and easy for mobile and web app developers to work with Microsoft Word documents, Microsoft Excel spreadsheets, Microsoft PowerPoint presentations, Adobe PDFs, OpenDocument formats, barcodes, OCR and email formats and protocols in their apps. The REST API can be called from any platform and any program languages, including C#, VB.NET, ASP.NET, ASP, PHP, Java, Ruby, Amazon, etc.  

ByteScout Cloud API Server is a self-hosted on-premise REST Web API server for AI powered data extraction, PDF processing, spreadsheets, barcodes etc. It has a dedicated web API customer success team which is robust as well as scalable. It is AI powered and provides manual data extraction. One can easily create, extract, modify, PDF, excel and barcodes.

Zamzar is a free online video converter, audio converter, image converter, html to pdf converter, eBook converter API. Use the API to easily convert documents, images, audio, video, CAD, email and more - over 1,100 different conversions in all. It comes with a comprehensive documentation to get you started in minutes and a support team staffed by software developers.  

This API helps in converting HTML to PDF with support for CSS and JavaScript. It also offers watermarking, merging, scaling to one page and much more.  

DynamicPDF Converter for .NET helps in converting most major files including Office and HTML into PDF. Along with a multithreaded performance, it has an intuitive and flexible object model. This API offers any .NET developer to dynamically convert many common file formats to PDF document in real-time. It allows converting of over 50 file types to PDF including HTML and MS Office formats.