Polygon.io
Twelve Data
Alpha Vantage
Hotstoks
Quandl
Financial Modeling Prep
Alpaca Trading API
Alpaca
Delta
Blockfolio
CoinTracking
CoinStats
CoinMarketCap
CryptoCompare
Koinly
Crypto Central
Polygon.io DeltaBased on our record, Polygon.io seems to be a lot more popular than Delta. While we know about 82 links to Polygon.io, we've tracked only 1 mention of Delta. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I am building a web app, and I would like to use the polygon.io API on the back-end to forecast the market sentiment. The individual upgrade is $200, while business upgrade would cost $2000. Would my use of the API considered personal or commercial? Source: 6 months ago
It's worth mentioning that we use polygon.io to provide market information, which has the ability to specify time frames for data. Each ChatGPT call will have the appropriate information at the time it should. We also use a temperature of 0, as we want idempotent predictions. Source: 11 months ago
I am currently testing the products from Polygon.io . They seem to have everything I need, however I noticed that sometimes prices are not adjusted for splits. I have seen on subreddit that this is a known problem with Polygon (about more than 3 years ago!) so I am wondering about the quality of their data. Source: 11 months ago
Polygon.io is our main data source, then we have other auxiliary sources to fill in other details polygon doesn't provide. Source: 11 months ago
To get the stock price data, we are going to use Polygon,. - Source: dev.to / 12 months ago
The one with getdelta.io is different, it returned HTTP 404, which "indicates that the origin server did not find a current representation for the target resource or is not willing to disclose that one exists.". Source: about 1 year ago
Twelve Data - The simplest and most effective way to access both realtime and historical stock, forex, cryptocurrency data, and over 100 technical indicators.
Blockfolio - Blockfolio offers complete Bitcoin and Altcoin cryptocurrency management, with easy to use tools to keep track of all your crypto investments.
Alpha Vantage - Alpha Vantage offers free APIs in JSON and CSV formats for realtime and historical stock and forex data, digital/crypto currency data and over 50 technical indicators.
CoinTracking - All Coins, all Analyzes, all Calculations, all Charts and all Prices for Bitcoin, Litecoin...
Hotstoks - The stock market API powered by SQL.
CoinStats - CoinStats is a cryptocurrency research and portfolio tracker, that allows to access market data on over 3000 cryptocurrencies, track bitcoin and altcoin investments.