diff --git a/core/api/src/main/java/org/onosproject/net/pi/runtime/PiActionParam.java b/core/api/src/main/java/org/onosproject/net/pi/runtime/PiActionParam.java
new file mode 100644
index 0000000..29b9a26
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/pi/runtime/PiActionParam.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2017-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.net.pi.runtime;
+
+import com.google.common.annotations.Beta;
+import com.google.common.base.Objects;
+import org.onlab.util.ImmutableByteSequence;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Runtime parameter of an action in a match+action table of a protocol-independent pipeline.
+ */
+@Beta
+public final class PiActionParam {
+
+    private final PiActionParamId id;
+    private final ImmutableByteSequence value;
+
+    /**
+     * Creates an action's runtime parameter.
+     *
+     * @param id    parameter identifier
+     * @param value value
+     */
+    public PiActionParam(PiActionParamId id, ImmutableByteSequence value) {
+        this.id = checkNotNull(id);
+        this.value = checkNotNull(value);
+        checkArgument(value.size() > 0, "Value can't have size 0");
+    }
+
+    /**
+     * Returns the identifier of this parameter.
+     *
+     * @return parameter identifier
+     */
+    public PiActionParamId id() {
+        return id;
+    }
+
+    /**
+     * Returns the value of this parameter.
+     *
+     * @return parameter value
+     */
+    public ImmutableByteSequence value() {
+        return value;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        PiActionParam that = (PiActionParam) o;
+        return Objects.equal(id, that.id) &&
+                Objects.equal(value, that.value);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(id, value);
+    }
+
+    @Override
+    public String toString() {
+        return this.id.toString() + "=" + this.value().toString();
+    }
+}