The cryptocurrency industry is developing at a rapid pace, at the moment, there are more than 22 thousand digital coins on the market, according to the data of the analytical resource Coinmarketcap. However, just a small part of them have such a function as connecting oracles. Perhaps the most popular in this area is Сhainlink oracle.

In this article, we will discuss what it is, compare API3 vs Chainlink and understand what prospects this direction has.