New answers tagged discussion
See http://api.stackexchange.com/docs/vectors, which allow requests to be made in batch. (I don't recall this article existing at the time of asking.)
The 2.0 API provides support for /search: http://api.stackexchange.com/2.1/search?site=[site]&intitle=[search string] If you want to constrain this to your posts, 2.0's /search/advanced path allows you to filter by user, or by basically anything else: http://api.stackexchange.com/2.1/search/advanced?site=[site]&title=[search string]&user=[your user ID] ...
Top 50 recent answers are included