That's a good healthy thing to do. I periodically purge mine as well. I recommend https://tweetdelete.net/ BEen using them for years. You can be selective about what goes. Source: over 1 year ago

I think this is all about mastering your public footprint. Like for instance having private non-findable Social medias: like a private Facebook with only folks you know in person, or a private twitter and making sure to purge your tweets with a site like https://tweetdelete.net. Source: over 1 year ago

This is what I used to use back when I had a Twitter account; hope it's what you're looking for; https://tweetdelete.net/. Source: over 1 year ago

Tweetdelete.net has always worked for me. Source: over 1 year ago

For others who are keeping their account but putting it on ice, I liked cleaning things up a bit first (i.e., downloading data then deleting all old tweets). No affiliation, but https://tweetdelete.net/ was handy for this. Source: over 1 year ago

Make sure you have documentation of the date you first created and started using your handle (downloading an archive of your data will help; step-by-step instructions are available here). If you've added your handle to any marketing or corporate materials (i.e. - a brochure, website, press release, email signature, etc.), get proof of that, as well. Source: 12 months ago

P.S. Don't forget to get your complimentary archive on your way out, while supplies last. Https://help.twitter.com/en/managing-your-account/how-to-download-your-twitter-archive. Source: 12 months ago

Does this work? https://help.twitter.com/en/managing-your-account/how-to-download-your-twitter-archive. Source: over 1 year ago

If you have hundreds then download your data from Twitter. Source: over 1 year ago

Since this sounds like a one-time export for historical data, I'd say skip the API and use the built-in user feature for "How to download your Twitter archive". Source: over 1 year ago