Yo, let's build a master list of the actually useful data sources out there. Whether it's on-chain analytics, price feeds, or niche datasets, drop your gems below so the rest of us don't have to dig through the trash.
I'm a big fan of Quandl for financial data and Alpaca for crypto market APIs. Their APIs are well-documented and have good latency. I also use Kaggle datasets, especially for exploring different asset price correlations.
Just wanted to throw in my 2 cents, I'm a big fan of Alpha Vantage for historical stock and crypto data, their API is user-friendly and they offer a decent free tier. I've also been using CoinGecko for some of my crypto projects, their API is solid and they have a good balance of free and paid features.
Dune Analytics is absolute gold for on-chain stuff, seriously can't build without it. Also, if you need raw price feeds, CoinGecko’s free tier is pretty solid.
Dune Analytics is absolute gold for on-chain queries, seriously can't recommend it enough if you're digging into wallet activity. Also, Coingecko’s free API is pretty solid if you just need basic pricing data without the headache.
Dune is an absolute must for on-chain stuff, seriously a game changer. Also, don’t sleep on CoinGecko’s free API if you just need basic pricing data to get started.
check out Alpha Vantage for free historical stock and crypto data, their APIs are pretty straightforward to implement and they have a good range of options for different data types. Another one that's worth mentioning is CoinGecko, their APIs are well-documented and they have a lot of useful data on coin market caps and trading volumes.