td-ameritrade-python-api VS tda-api

i use this for accessing td's api https://github.com/areed1192/td-ameritrade-python-api

I recently got TD's API setup on Python, I recommend following this guide for getting auth setup correctly and this library for requests. I started at the "Getting Access" section and did not need to enable windows features, so I'd skip that.

sure, so set up an .env file with the following credentials I gave and follow the directions here to link your td developer account with your td ameritrade account https://github.com/areed1192/td-ameritrade-python-api

The second one is https://github.com/areed1192/td-ameritrade-python-api . His wrapper is easier to use IMO but like I said try both out and see which one works/is easier for you. The actual creator of the wrapper has videos at https://www.youtube.com/watch?v=8N1IxYXs4e8&list=RDCMUCBsTB02yO0QGwtlfiv5m25Q&index=4 .

Your problem is that you are passing TDA your apikey (consumer key) instead of an access token. The documentation says "Pass your OAuth User ID to make an unauthenticated request for delayed data" and that is what you are doing. You need to use either an access token or a refresh token. This whole OAuth token thing is a little complicated so I suggest using some code that is already working like this. I spent a week debugging my own code for OAuth and then found Alex's code and had it working in a few minutes. This is all I use now.

Here is one person's Github. You will want to watch the YouTube videos as well https://github.com/areed1192/td-ameritrade-python-api

Also FYI - The TDA API does have level 2 book streaming, but it's undocumented. However, some people have managed to reverse engineer some of those endpoints. Not sure what language you're using, but the most popular TDA API wrapper (tda-api) has some functionality you can use for your own testing. See the section starting on line 1791 of the Streaming class implementation here.