diff --git a/api/v3/GrantBudget.php b/api/v3/GrantBudget.php
new file mode 100644
index 0000000..43fd86c
--- /dev/null
+++ b/api/v3/GrantBudget.php
@@ -0,0 +1,70 @@
+<?php
+/**
+ * This api exposes CiviCRM GrantBudget.
+ *
+ * @package CiviCRM_APIv3
+ */
+
+/**
+ * Save a GrantBudget.
+ *
+ * @param array $params
+ *
+ * @return array
+ */
+function civicrm_api3_grant_budget_create($params) {
+  return _civicrm_api3_basic_create(_civicrm_api3_get_BAO(__FUNCTION__), $params, 'GrantBudget');
+}
+
+/**
+ * Get a GrantBudget.
+ *
+ * @param array $params
+ *
+ * @return array
+ *   Array of retrieved GrantBudget property values.
+ */
+function civicrm_api3_grant_budget_get($params) {
+  return _civicrm_api3_basic_get(_civicrm_api3_get_BAO(__FUNCTION__), $params);
+}
+
+/**
+ * Delete a GrantBudget.
+ *
+ * @param array $params
+ *
+ * @return array
+ *   Array of deleted values.
+ */
+function civicrm_api3_grant_budget_delete($params) {
+  return _civicrm_api3_basic_delete(_civicrm_api3_get_BAO(__FUNCTION__), $params);
+}
+
+/**
+ * Delete a GrantBudget.
+ *
+ * @param array $params
+ *
+ * @return array
+ *   Array of deleted values.
+ */
+function civicrm_api3_grant_budget_getbudget($params) {
+  $result = CRM_Grant_BAO_GrantBudget::getGrantBudget($params);
+  return civicrm_api3_create_success($result, $params, 'GrantBudget', 'get');
+}
+
+/**
+ * Adjust metadata for Grant budget action.
+ *
+ * @param $spec
+ */
+function _civicrm_api3_grant_budget_getbudget_spec(&$spec) {
+  $spec['fiscal_year'] = [
+    'api.required' => 1,
+    'title' => ts('Fiscal Year'),
+    'type' => CRM_Utils_Type::T_INT,
+    'pseudoconstant' => [
+      'callback' => 'CRM_Grant_BAO_GrantBudget::getFiscalyear',
+    ],
+  ];
+}