Ranked in these QuestionsQuestion Ranking
Pro Has a lot of technical indicators
Alpha Vantage API supports a lot of technical indicator out of the box
Pro Good documentation with examples
Pro Has free tier
You can get started without paying a dime.
Pro Has real-time data
Con API Call limits
Free tier has API request limitation of up to 5 API requests per minute and 500 requests per day. If you would like to target a larger API call volume, you will need premium membership.