diff --git a/CRM/AnnualGrantBudgets/APIWrapper.php b/CRM/AnnualGrantBudgets/APIWrapper.php
new file mode 100644
index 0000000..1e6f606
--- /dev/null
+++ b/CRM/AnnualGrantBudgets/APIWrapper.php
@@ -0,0 +1,36 @@
+<?php
+class CRM_AnnualGrantBudgets_APIWrapper implements API_Wrapper {
+  /**
+   * the wrapper contains a method that allows you to alter the parameters of the api request (including the action and the entity)
+   */
+  public function fromApiInput($apiRequest) {
+    $params = $apiRequest['params'];
+    if (!empty($params['id'])) {
+      $ids = explode('_', $params['id']);
+      if (count($ids) == 2) {
+        unset($params['id']);
+        $gBParams = [
+          'financial_type_id' => $ids[0],
+          'fiscal_year' => $ids[1],
+        ];
+        try {
+          $gBId = civicrm_api3('GrantBudget', 'getvalue', $gBParams + ['return' => 'id']);
+          $params['id'] = $gBId;
+        }
+        catch (CiviCRM_API3_Exception $e) {
+          $params += $gBParams;
+        }
+        $apiRequest['params'] = $params;
+      }
+    }
+    return $apiRequest;
+  }
+
+  /**
+   * alter the result before returning it to the caller.
+   */
+  public function toApiOutput($apiRequest, $result) {
+    return $result;
+  }
+
+}
diff --git a/annualgrantbudgets.php b/annualgrantbudgets.php
index 3fa11d1..7d7c1a1 100644
--- a/annualgrantbudgets.php
+++ b/annualgrantbudgets.php
@@ -201,3 +201,15 @@ function annualgrantbudgets_civicrm_navigationMenu(&$menu) {
   ]);
   _annualgrantbudgets_civix_navigationMenu($menu);
 }
+
+/**
+ * Implements hook_civicrm_apiWrappers().
+ *
+ * @link http://wiki.civicrm.org/confluence/display/CRMDOC/hook_civicrm_apiWrappers
+ *
+ */
+function annualgrantbudgets_civicrm_apiWrappers(&$wrappers, $apiRequest) {
+  if (strtolower($apiRequest['entity']) == 'grantbudget' && $apiRequest['action'] == 'create') {
+    $wrappers[] = new CRM_AnnualGrantBudgets_APIWrapper();
+  }
+}