Since January 2007 and the MBS Xojo Plugin 7.0, we do include CURL for up- and download via ftp/http.
Since January 2012 and the MBS FileMaker Plugin 2.5, we include CURL functions for FileMaker.
And as far as I see, FileMaker Inc. added CURL right to the database engine with version 11 of FileMaker, but only added CURL options for Insert From URL script step with version 16.
See blog post from Daniel Stenberg.
For end of March we have the CURL conference on the agenda in Prague. Please join it if you like to learn more about CURL. See wiki page.
Interested in a meeting for FileMaker or Xojo?
If you are in Prague and like to talk with me, please contact me soon.