API? SQL Developer? To create a control file? I have never ever thought of that. I created hundreds of control files, and every time I used a text editor.

CREATE OR REPLACE PACKAGE XXC_CTL_FILE 
BODY 
IS
  v_file UTL_FILE.FILE_TYPE;
  BEGIN
       v_file := UTL_FILE.FOPEN('C:\','HELLO.CTL','a');
       UTL_FILE.FCLOSE(v_file);
 EXCEPTION
      WHEN OTHERS THEN
           DBMS_OUTPUT.PUT_LINE('ERROR ' || TO_CHAR(SQLCODE) || SQLERRM);
           NULL; 
 END; 

      WHEN OTHERS THEN
           DBMS_OUTPUT.PUT_LINE('ERROR ' || TO_CHAR(SQLCODE) || SQLERRM);
           NULL; 

The control file will contain ONE only record.

The control record will hold details about the delivered data file.

The control record will hold total 26 byte record length.

Control file Definition means

It can handle to generate FileDate, DataDate and Number OF Records it should be Calculated.