Spout – FileFormat

Spout API is an open-source PHP library that allows software developers to read and write CSV, XLSX as well as ODS spreadsheets files. It is fast and scalable as compared to other file readers or writers. Further, it is capable of handling small as well as very large spreadsheets files while keeping the memory usage …

Simple Excel-PHP – FileFormat

Simple Excel-PHP is a lightweight open-source PHP library with a simplistic approach to read, write, parse, & convert Microsoft Excel file formats. Developers can use this spreadsheet library to easily convert between popular file formats like XML CSV, TSV HTML & JSON formats. It provides support for several important features such as parsing HTML table, …

SheetJS JS-XLSX – FileFormat

SheetJS JS-XLSX API facilitates the JavaScript developers in reading and writing Excel spreadsheets of various file formats. It provides the developers with the ability to create a workbook from scratch, parse complex sheets, convert HTML tables, read a specific cell, add a new worksheet and much more.  

PyExcel – FileFormat

PyExcel is an open-source single Python API that supports working with several popular spreadsheet formats. It enables software programmers to read, manipulate and write data in CSV, ODS, XLS, XLSX, and XLSM file formats. The API greatly focused on data rather than file formats. Further, it is very easy to get or export data from …

Gspread – FileFormat

Gspread API is an open-source Python implementation for Google Sheets. The library enables computer programmers to create, open and modify a spreadsheet file from their own Python applications. It supports several important features like creating a new spreadsheet, selecting & sharing a share a spreadsheet, creation & deletion of worksheet, getting a cell value, getting …

PyExcelerate – FileFormat

PyExcelerate enables software programmers to read and write Excel XLSX spreadsheet files. It is also known as an accelerated Excel XLSX writing library for Python because it is by far the fastest option for Python spreadsheet solutions. This API creates the 10,000 rows and 10 columns in just 0.17 seconds. Further, it supports writing bulk …

Apache POI HSSF – FileFormat

Apache POI HSSF is a pure Java implementation of the Excel ’97(-2007) file format (BIFF8). The free open-source API provides features for creating, reading, modify and writing Excel XLS spreadsheets. Further, in order to modify a spreadsheet data, the user model API can be used. It is important to know that the user model system …

Alpha Vantage API

Alpha Vantage API returns the realtime exchange rate for any pair of digital currency and physical currency. Data returned for physical currency (Forex) pairs also include real-time bid and ask prices. This API also provides real-time and historical global equity data in 4 different temporal resolutions that are daily, weekly, monthly, and intraday.  

Brave New Coin

BNC’s cloud-based cryptocurrency APIs help you convert currencies & deliver a fast and reliable reference for real-time and historic crypto data from more than 200+ exchanges, including thousands of assets and markets. It retains a set of private and public APIs to institutions and the developer community.  

Foreign Exchange Rates by Visa developer center

Foreign Exchange Rates offers easy access to the Visa daily currency exchange rate for a given currency pair. With the help of this API, you can provide a better user experience for cross-border and/or multicurrency transactions. The Foreign Exchange Rates API is available for use by any developer in sandbox and production.  

Currency API By Ren

Currency API is a simple and free API for querying currency exchange rates between many common currencies. It is provided by Ren, a PHP web developer from Auckland, New Zealand.  

coinlayer

The coinlayer API is capable of delivering accurate exchange rate data for more than 385 cryptocurrencies in real-time. Crypto data is gathered from some of the largest cryptocurrency exchanges, requested using HTTP GET and returned in straightforward JSON format.  

TraderMade

TraderMade is a foreign exchange rates and currency conversion API that offers a wide range of robust and cost-effective data solutions for business. This REST API has sub-second updates, multiple API end-points with comprehensive documentation  

Currency Converter by warting

The API is simple as well as a free currency converter & exchange rates API. Insert an amount, what currency to convert from and what currency to convert to and finally get your result.  

Fixer

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.  

Interzoid Exchange Rate APIs

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.