SLA2

[OttoKlaasen]

const char* kAlphaVantageFingerprint = "9E 0B E5 F1 F4 1A 2F 29 8A 7A AA 9D B5 30 54 39 4C 20 A1 6C";

This company changes it fingerprint every two month, so not nice as its hardcode , so you have to change you code all the time.

[billbee]

Where do you find the right key? I have clicked on the website and found things like sha1 fingerprint and have changed but this program still does not work. if i put the get line in a browser it works just fine.

Were you able to get it to work from an arduino? If so, how? I would live to know.

[MonsterThews]

I had to make two changes to the code to get it to work, but then it worked in Serial just fine. Really nice, actually. But as soon as I plugged in the OLED I got a huge EXCEPTION, and it wouldn't get online.
Nothing I have done has gotten the display to get any further than "connecting to (SSID)", and the area of OLED not used by text is static.