The library is already open
Every ad running on Facebook and Instagram is public by law. Meta has to show them, so they built the Ads Library and it sits there for anyone to search.
Most people use it wrong. They type in a competitor, scroll for two minutes, screenshot one ad, and call it research.
That is not a strategy. That is a snapshot. The real value shows up when you pull everything a competitor is running and look at it as one picture.
What you might not have known is that the library has an API. That single fact changes how much you can see.