Top 5 Best Cryptocurrency Exchanges in 2019 - 2020 - Best Crypto Exchanges Out There
Almost each crytpo exchange has its own API, you can integrate it for free and get the data. The first challenge that they are too many (more than 200 exchanges so far), that means 200+ API integrations which cost a lot of time. The second challenge is that these exchanges provide a lot of data and after start collecting you will need to take care of many TBs which is an additional servers cost.
That's why there are such services like Coinmarketcapi professional API, coinapi and CryptoAPIs.io
I made a compare and i picked https://cryptoapis.io/ because they have more exchanges, more options and cheaper.
answered Nov 8 '18 at 10:43