IEX-API VS tiingo-python

We use https://iexcloud.io/docs/api/ for our api.

I found the API docs for IEX here: https://iexcloud.io/docs/api/

and im not sure how in helpers.py how they could tell what are the keys in the dictionary the api is returning? is it just any key that's mentioned in f"https://cloud.iexapis.com/stable/stock/{urllib.parse.quote_plus(symbol)}/quote?token={api_key}}/quote?token={api_key})? (ie. companyName, latestPrice, symbol). if so, i could also introduce the key dataGenerationDate as it is mentioned in https://iexcloud.io/docs/api/ (tho irrelevant but if i wanted to, can I?)

IEX Cloud, on their batch request doc (https://iexcloud.io/docs/api/#batch-requests) gives the example:

Has anyone been able to pull VWAP from the IEX Cloud API? I've recently subscribed and am using it for most of my data. Oddly, VWAP seems to be missing and is not mentioned in their API docs. Has anyone else found it? What data source (paid is ok!) do you use?

Not sure if this is exactly what you need or how far it goes back but iexcloud has pretty good data: https://iexcloud.io/docs/api/#advanced-fundamentals

https://iexcloud.io/docs/api/#financials

Checkout IEX Cloud historical prices. They return adjusted and unadjusted historical data for up to 15 years. I’ve used them for a number of stock market related applications I’ve built. It’s quite a robust offering — I’m currently using their API for an investor community app I’m coding. Happy to answer any questions about their API if you get stuck 🧑🏽‍💻