diff --git a/fulcrm_apiv2.admin.inc b/fulcrm_apiv2.admin.inc
index e7de9c9..36ad457 100644
--- a/fulcrm_apiv2.admin.inc
+++ b/fulcrm_apiv2.admin.inc
@@ -1,6 +1,7 @@
 <?php
 
 function fulcrm_apiv2_admin_form_submit( $form, &$form_state ) {
+    variable_set( 'fulcrm_apiv2_hostname', $form_state[ 'values' ][ 'hostname' ] );
     variable_set( 'fulcrm_apiv2_user', $form_state[ 'values' ][ 'apiuser' ] );
     variable_set( 'fulcrm_apiv2_key', $form_state[ 'values' ][ 'apikey' ] );
     variable_set( 'fulcrm_apiv2_client_id', $form_state[ 'values' ][ 'clientid' ] );
@@ -16,12 +17,20 @@ function fulcrm_apiv2_admin_form( $form, &$form_state ) {
                             '#title' => 'fulcrm.org APIv2 Credentials',
                             );
 
+    $form[ 'api' ][ 'hostname' ] = array( '#type' => 'select',
+                                          '#title' => 'Instance',
+                                          '#description' => 'fulcrm.org APIv2 instance',
+                                          '#options' => array( 'fulcrm.org' => 'LIVE',
+                                                               'test.fulcrm.org' => 'TEST (live data, pre-production code)',
+                                                               'dev.fulcrm.org' => 'DEV (test data, in-development code)',
+                                                               ),
+                                          '#default_value' => variable_get( 'fulcrm_apiv2_hostname', 'fulcrm.org' ),
+                                          );
     $form[ 'api' ][ 'apiuser' ] = array( '#type' => 'textfield',
                                          '#title' => 'API Username',
                                          '#description' => 'fulcrm.org APIv2 username',
                                          '#default_value' => variable_get( 'fulcrm_apiv2_user', '' ),
                                          );
-
     $form[ 'api' ][ 'apikey' ] = array( '#type' => 'textfield',
                                         '#title' => 'API Key',
                                         '#description' => 'fulcrm.org APIv2 key',