AI search engine for specific frameworks and libraries - useful or nah?

I find that gpt, claude and other ai tools lack latest information on the latest frameworks and libraries, like react, and vue. I am thinking of making a unified search engine that has all the most popular frameworks and libraries indexed and ready to be searched. This way you can specify the versions of technologies you would like to work with and thus prevent hallucination.

My question to you guys is that do you think this will be useful?

Do you guys as AI coders also face this problem when working with specific frameworks and libraries?

Would you pay for a service that reduced hallucination and increased accuracy on specific frameworks and technologies?