Have you looked at Alpaca's Market Data API or Polygon.io. Both premium options are reasonably priced and give you access to both historical and real time trades. Source: over 1 year ago

I think https://alpaca.markets/data still offers free api keys for research purposes. Source: almost 2 years ago

Https://alpaca.markets/data - As you see you get 100% market coverage for all US exchanges and unlimited API / WebSocket access. They also have 1min bar historical data (I do not know about the tick level). I can not speak to the quality of the API Access as I have a TotalView subscription. Source: almost 2 years ago

Free tier for researchers, now $99/month for the algotrading access (link: https://alpaca.markets/data). Source: about 2 years ago

Https://alpaca.markets/data free plan has 200 calls/minute limit which is what you want anyway. Source: over 2 years ago

I tried it on the Firefox and Tor Browser on Whonix, same error pops up because it's using the Tor network? Is there any way I can bypass this error so I can visit my schools website, or another way to use the site anonymously? Site is Clever. Source: over 1 year ago

Mine also don't know what bookmarks are. So to get into Schoology, they type clever.com into the search bar - not the address bar - then log into it, then click the student page, then find Schoology, then click it. And the wifi in my part of the building sucks, so it takes them 5 minutes. Source: over 1 year ago