check out nghota.com api. It is able to pull out the main text from most non-ecommerce web pages and return that to you in json.
The "demo" doesn't look like typing, it's a fade right, and it's painfully slow. And then, there's no library, it's just 'import requests', so even the demo is extra long. (Why not show curl then?)
Also, are there any benchmarks? Why should I take the time to evaluate this myself against existing open-source tools? It seems like that should be your responsibility, not mine, to spend the time doing a detailed comparison and evaluation. In a way that feels open and trustworthy.
I respect what you are doing and share this feedback from the heart.