diff --git a/incubator/api/src/main/java/org/onosproject/incubator/elasticcfg/ConfigNode.java b/incubator/api/src/main/java/org/onosproject/incubator/elasticcfg/ConfigNode.java
new file mode 100644
index 0000000..64e6ad0
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+++ b/incubator/api/src/main/java/org/onosproject/incubator/elasticcfg/ConfigNode.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.incubator.elasticcfg;
+
+import java.util.List;
+
+/**
+ * Abstraction of an instance in the elastic  config store.
+ */
+public interface ConfigNode<V> {
+    /**
+     * Builder for ConfigNode.
+     */
+    interface Builder<V> {
+        /**
+         * Adds the type of the instance node.
+         *
+         * @param type node type
+         * @return a ConfigNode builder
+         */
+        Builder addType(NodeType type);
+
+        /**
+         * Adds the value of the instance node.
+         *
+         * @param value at the node
+         * @return a ConfigNode builder
+         */
+        Builder addValue(Class<V> value);
+
+        /**
+         * Adds children to the children field.
+         *
+         * @param children to be added
+         * @return a ConfigNode builder
+         */
+        Builder addChildren(Class<ConfigNode> children);
+
+        /**
+         * Builds an immutable ConfigNode entity.
+         *
+         * @return ConfigNode
+         */
+        ConfigNode build();
+    }
+
+    /**
+     * Returns the type of the instance node.
+     *
+     * @return node type
+     */
+    NodeType type();
+
+    /**
+     * Returns the value of the instance node.
+     *
+     * @return value at  the node
+     */
+    Class<V> value();
+
+    /**
+     * Returns the children of the instance node.
+     *
+     * @return children of the node
+     */
+    List<ConfigNode> children();
+}
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