Recently, I found an article about some API headers of the JEDI library. The article pointed to the very old JEDI API site
which contains FTP links to the Delphi API header units.
However the FTP server is empty and so all the links are invalid.

Luckily, you can find the most recent versions in our Download Area. (The unit may slightly be changed.)

If you ever want to point to the API headers you should use the Sourceforge download site (Of course you can choose a package).