diff --git a/apps/aiplugin/api/BUILD b/apps/aiplugin/api/BUILD
new file mode 100644
index 0000000..2d486c5
--- /dev/null
+++ b/apps/aiplugin/api/BUILD
@@ -0,0 +1,3 @@
+osgi_jar_with_tests(
+    deps = CORE_DEPS + JACKSON,
+)
diff --git a/apps/aiplugin/api/src/main/java/org/onosproject/aiplugin/RestService.java b/apps/aiplugin/api/src/main/java/org/onosproject/aiplugin/RestService.java
new file mode 100644
index 0000000..38d9422
--- /dev/null
+++ b/apps/aiplugin/api/src/main/java/org/onosproject/aiplugin/RestService.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2023-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onosproject.aiplugin;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+/**
+ * Manages REST Communication with AI-as-a-Service (AIaaS) APIs.
+ * Interacts with datamonitor and analytics manager modules
+ */
+public interface RestService {
+    /**
+     * Get list of template categories available in AIaaS.
+     *
+     * @return JSON list of template categories
+     */
+    ObjectNode getTemplateNames();
+
+    /**
+     * Show the list of templates from the chosen category.
+     *
+     * @param categoryId Id of the template categories
+     * @return List of templates available from the chosen category
+     */
+    ObjectNode showTemplates(Integer categoryId);
+
+    /**
+     * Create a template out of any category.
+     *
+     * @param categoryId  Id of the template categories
+     * @param templateId  Id of the template from the list in the chosen category
+     * @param requestBody YAML template needs to be created
+     * @return Template Creation Response
+     */
+    ObjectNode createTemplate(Integer categoryId, Integer templateId, String requestBody);
+
+    /**
+     * @param templateId  Id of the datasource template
+     * @param requestBody JSON data to train and predict
+     * @return Data Insertion Status
+     */
+    ObjectNode insertData(Integer templateId, String requestBody);
+
+    /**
+     * Get training status of the template.
+     *
+     * @param categoryId Id of the template categories
+     * @param templateId Id of the template from the list in the chosen category
+     * @return Training Status of the chosen template
+     */
+    ObjectNode getTrainingStatus(Integer categoryId, Integer templateId);
+
+    /**
+     * Get Predictions for the chosen template.
+     *
+     * @param categoryId  Id of the template categories
+     * @param templateId  Id of the template from the list in the chosen category
+     * @param requestBody Input values to the chosen template
+     * @return JSON Predictions for the chosen prediction template
+     */
+    ObjectNode getPredictions(Integer categoryId, Integer templateId, String requestBody);
+}
+
diff --git a/apps/aiplugin/api/src/main/java/org/onosproject/aiplugin/package-info.java b/apps/aiplugin/api/src/main/java/org/onosproject/aiplugin/package-info.java
new file mode 100644
index 0000000..6d98292
--- /dev/null
+++ b/apps/aiplugin/api/src/main/java/org/onosproject/aiplugin/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2023-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Sample application that assigns and manages AIaaS.
+ */
+package org.onosproject.aiplugin;
\ No newline at end of file