Login to your OptionsXpress web account
Place your mouse on top of ACCOUNT located at the blue bar menus
Then click on PROFILE under the sub menus
On the ACCOUNT PROFILE page click on TRADING & WEBSITE PREFERENCES located on the gray bar menu
Locate and check SITE ACCESS VIA SOFTWARE/XML API checkbox
NOTE: You may receive a Trading Access via External Software Agreement pop up box. Read the agreement text and click I ACCEPT to continue
Click SAVE CHANGES button