diff --git a/apps/openstackvtap/api/src/main/java/org/onosproject/openstackvtap/api/OpenstackVtap.java b/apps/openstackvtap/api/src/main/java/org/onosproject/openstackvtap/api/OpenstackVtap.java
new file mode 100644
index 0000000..6f74e81
--- /dev/null
+++ b/apps/openstackvtap/api/src/main/java/org/onosproject/openstackvtap/api/OpenstackVtap.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2018-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.openstackvtap.api;
+
+import org.onosproject.net.Annotated;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.SparseAnnotations;
+
+import java.util.Set;
+
+/**
+ * Abstraction of an OpenstackVtap.
+ */
+public interface OpenstackVtap extends Annotated {
+
+    /**
+     * Openstack vTap type.
+     */
+    enum Type {
+
+        /**
+         * Indicates mirroring both TX and RX traffic.
+         */
+        VTAP_ALL(0x3),
+
+        /**
+         * Indicates only mirroring RX traffic.
+         */
+        VTAP_RX(0x2),
+
+        /**
+         * Indicates only mirroring TX traffic.
+         */
+        VTAP_TX(0x1),
+
+        /**
+         * Indicates do not mirroring any traffic.
+         */
+        VTAP_NONE(0);
+
+        private final int type;
+
+        Type(int type) {
+            this.type = type;
+        }
+
+        public boolean isValid(Type comp) {
+            return (this.type & comp.type) == comp.type;
+        }
+    }
+
+    /**
+     * OpenstackVtap identifier.
+     *
+     * @return OpenstackVtap id
+     */
+    OpenstackVtapId id();
+
+    /**
+     * Returns OpenstackVtap type.
+     *
+     * @return type
+     */
+    Type type();
+
+    /**
+     * Returns the vTap criterion.
+     *
+     * @return vTap criterion
+     */
+    OpenstackVtapCriterion vTapCriterion();
+
+    /**
+     * Returns a collection of TX device identifiers.
+     *
+     * @return device identifiers
+     */
+    Set<DeviceId> txDeviceIds();
+
+    /**
+     * Returns a collection of RX device identifiers.
+     *
+     * @return device identifiers
+     */
+    Set<DeviceId> rxDeviceIds();
+
+    /**
+     * Builder of new openstack vTap instance.
+     */
+    interface Builder {
+
+        /**
+         * Returns openstack vTap builder with supplied vTap identifier.
+         *
+         * @param id vTap identifier
+         * @return openstack vTap builder
+         */
+        Builder id(OpenstackVtapId id);
+
+        /**
+         * Returns openstack vTap builder with supplied vTap type.
+         *
+         * @param type vTap type
+         * @return openstack vTap builder
+         */
+        Builder type(OpenstackVtap.Type type);
+
+        /**
+         * Returns openstack vTap builder with supplied vTap criterion.
+         *
+         * @param vTapCriterion vTap criterion
+         * @return openstack vTap builder
+         */
+        Builder vTapCriterion(OpenstackVtapCriterion vTapCriterion);
+
+        /**
+         * Returns openstack vTap builder with supplied TX device identifiers.
+         *
+         * @param txDeviceIds TX device identifiers
+         * @return openstack vTap builder
+         */
+        Builder txDeviceIds(Set<DeviceId> txDeviceIds);
+
+        /**
+         * Returns openstack vTap builder with supplied RX device identifiers.
+         *
+         * @param rxDeviceIds RX device identifiers
+         * @return openstack vTap builder
+         */
+        Builder rxDeviceIds(Set<DeviceId> rxDeviceIds);
+
+        /**
+         * Returns openstack vTap builder with supplied annotations.
+         *
+         * @param annotations a set of annotations
+         * @return openstack vTap builder
+         */
+        Builder annotations(SparseAnnotations... annotations);
+
+        /**
+         * Builds an immutable openstack vTap instance.
+         *
+         * @return openstack vTap instance
+         */
+        OpenstackVtap build();
+    }
+}