Be informed on cryptocurrency prices and emerging markets with Coin Gecko. No, this is not a sponsored post – Only informing you of a decent place.
And if you’re into self-hosted, hackery type projects, you may try my Cryptocurrency Market Indexer here, https://github.com/snick512/cryptomarketindexer.
Cryptocurrency Market Indexer is an old-fashioned crawler which asks services about their data and then stores it. From there, any application can access the SQL data and even update it.
Good luck out there.