The Kucoin PHP SDK allows developers to integrate the Kucoin and Kucoin Websocket APIs into their PHP applications. This SDK is installed via Composer. It requires PHP 5.5+, but PHP 7 is better.
Multiple APIs from AlchemyAPI have been added to the directory, as well as more Yandex APIs, and libraries for Expedia and Vine. Here's a summary of what's been added.
Cryptocurrency has been around since 2009 when bitcoin was first open-sourced. A recent rally in the price of bitcoin got us wondering if there has been a similar surge in developer interest in bitcoin. This article uses our directory data to look at the growth of APIs in this space.