diff --git a/runelite-api/src/main/java/net/runelite/api/Buffer.java b/runelite-api/src/main/java/net/runelite/api/Buffer.java
new file mode 100644
index 0000000000..384b3cacc8
--- /dev/null
+++ b/runelite-api/src/main/java/net/runelite/api/Buffer.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2020, Noodleeater <noodleeater4@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.api;
+
+/**
+ * Represents a byte buffer
+ */
+public interface Buffer extends Node
+{
+	byte[] getPayload();
+
+	int getOffset();
+
+	/**
+	 * Use this api to write to byte buffers
+	 */
+	void writeByte(int var1);
+
+	void writeShort(int var1);
+
+	void writeMedium(int var1);
+
+	void writeInt(int var1);
+
+	void writeLong(long var1);
+
+	void writeStringCp1252NullTerminated(String string);
+}
diff --git a/runelite-api/src/main/java/net/runelite/api/Client.java b/runelite-api/src/main/java/net/runelite/api/Client.java
index 1d354616c2..5d548fb2ae 100644
--- a/runelite-api/src/main/java/net/runelite/api/Client.java
+++ b/runelite-api/src/main/java/net/runelite/api/Client.java
@@ -2162,4 +2162,9 @@ public interface Client extends GameEngine
 	AbstractArchive getSpotAnimationDefinition_archive();
 
 	AbstractArchive getSpotAnimationDefinition_modelArchive();
+
+	/**
+	 * use createBuffer to create a new byte buffer
+	 */
+	Buffer createBuffer(byte[] initialBytes);
 }
diff --git a/runescape-api/src/main/java/net/runelite/rs/api/RSBuffer.java b/runescape-api/src/main/java/net/runelite/rs/api/RSBuffer.java
index b43e772f62..3772548707 100644
--- a/runescape-api/src/main/java/net/runelite/rs/api/RSBuffer.java
+++ b/runescape-api/src/main/java/net/runelite/rs/api/RSBuffer.java
@@ -1,12 +1,37 @@
 package net.runelite.rs.api;
 
+import net.runelite.api.Buffer;
 import net.runelite.mapping.Import;
 
-public interface RSBuffer extends RSNode
+public interface RSBuffer extends Buffer, RSNode
 {
 	@Import("array")
 	byte[] getPayload();
 
 	@Import("offset")
 	int getOffset();
+
+	@Import("writeByte")
+	@Override
+	void writeByte(int var1);
+
+	@Import("writeShort")
+	@Override
+	void writeShort(int var1);
+
+	@Import("writeMedium")
+	@Override
+	void writeMedium(int var1);
+
+	@Import("writeInt")
+	@Override
+	void writeInt(int var1);
+
+	@Import("writeLong")
+	@Override
+	void writeLong(long var1);
+
+	@Import("writeStringCp1252NullTerminated")
+	@Override
+	void writeStringCp1252NullTerminated(String string);
 }
\ No newline at end of file
diff --git a/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java b/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
index dc923d6bd5..66318eef50 100644
--- a/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
+++ b/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
@@ -1395,4 +1395,7 @@ public interface RSClient extends RSGameEngine, Client
 	@Override
 	@Import("SpotAnimationDefinition_modelArchive")
 	AbstractArchive getSpotAnimationDefinition_modelArchive();
+
+	@Construct
+	RSBuffer createBuffer(byte[] bytes);
 }