diff --git a/fastpair/rust/Cargo.toml b/fastpair/rust/Cargo.toml
new file mode 100644
index 00000000..be7a0a1c
--- /dev/null
+++ b/fastpair/rust/Cargo.toml
@@ -0,0 +1,22 @@
+# Copyright 2020 Google LLC
+#
+# 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
+#
+#     https://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]
+name = "fastpair"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/fastpair/rust/src/main.rs b/fastpair/rust/src/main.rs
new file mode 100644
index 00000000..548089bc
--- /dev/null
+++ b/fastpair/rust/src/main.rs
@@ -0,0 +1,20 @@
+// Copyright 2020 Google LLC
+//
+// 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
+//
+//     https://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.
+
+mod message_stream;
+mod types;
+
+fn main() {
+    println!("Fastpair Rust!");
+}
diff --git a/fastpair/rust/src/message_stream.rs b/fastpair/rust/src/message_stream.rs
new file mode 100644
index 00000000..e7266fe4
--- /dev/null
+++ b/fastpair/rust/src/message_stream.rs
@@ -0,0 +1,52 @@
+// Copyright 2020 Google LLC
+//
+// 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
+//
+//     https://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.
+
+// https://source.corp.google.com/piper///depot/google3/third_party/nearby/fastpair/message_stream/message_stream.h
+use crate::types::packets::{MessageGroup, MessageStreamPacket};
+
+struct BatteryInfo {
+    is_charging: bool,
+}
+
+pub struct MessageStream {
+    battery_info: BatteryInfo,
+}
+
+impl MessageStream {
+    pub fn on_received(&mut self, packet: MessageStreamPacket) {
+        match packet.group {
+            MessageGroup::Bluetooth(b) => println!("It's Bluetooth {:?}", b),
+            MessageGroup::CompanionAppEvent(c) => println!("It's CompanionAppEvent :{:?}", c),
+            _ => println!("whatever else"),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::types::packets::{BluetoothCode, MessageGroup, MessageStreamPacket};
+
+    #[test]
+    fn test_on_received() {
+        let packet = MessageStreamPacket {
+            group: MessageGroup::Bluetooth(BluetoothCode::DisableSilenceMode),
+            additional_data: vec![0, 1, 2],
+        };
+        let mut message = MessageStream {
+            battery_info: BatteryInfo { is_charging: false }
+        };
+        message.on_received(packet);
+    }
+}
diff --git a/fastpair/rust/src/types.rs b/fastpair/rust/src/types.rs
new file mode 100644
index 00000000..b0a402b9
--- /dev/null
+++ b/fastpair/rust/src/types.rs
@@ -0,0 +1,15 @@
+// Copyright 2020 Google LLC
+//
+// 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
+//
+//     https://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.
+
+pub mod packets;
\ No newline at end of file
diff --git a/fastpair/rust/src/types/packets.rs b/fastpair/rust/src/types/packets.rs
new file mode 100644
index 00000000..42e444e4
--- /dev/null
+++ b/fastpair/rust/src/types/packets.rs
@@ -0,0 +1,87 @@
+// Copyright 2023 Google LLC
+//
+// 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.
+
+// https://source.corp.google.com/piper///depot/google3/third_party/nearby/fastpair/message_stream/message.h
+
+#[derive(Debug)]
+pub enum BluetoothCode {
+    EnableSilenceMode = 0x01,
+    DisableSilenceMode = 0x02,
+}
+
+#[derive(Debug)]
+pub enum CompanionAppEventCode {
+    LogBufferFull = 0x01,
+}
+
+#[derive(Debug)]
+pub enum DeviceInformationEventCode {
+    ModelId = 0x01,
+    BleAddressUpdated = 0x02,
+    BatteryUpdated = 0x03,
+    RemainingBattery = 0x04,
+    ActiveComponentsRequest = 0x05,
+    ActiveComponentsResponse = 0x06,
+    Capabilities = 0x07,
+    PlatformType = 0x08,
+    SessionNonce = 0x0A,
+}
+
+#[derive(Debug)]
+pub enum SassCode {
+    Acknowledgement = 0xFF,
+    SassGetCapability = 0x10,
+    SassNotifyCapability = 0x11,
+    SassSetMultipointState = 0x12,
+    SassSetSwitchingPreference = 0x20,
+    SassGetSwitchingPreference = 0x21,
+    SassNotifySwitchingPreference = 0x22,
+    SassSwitchActiveSourceCode = 0x30,
+    SassSwitchBackAudioSource = 0x31,
+    SassNotifyMultipointSwitchEvent = 0x32,
+    SassGetConnectionStatus = 0x33,
+    SassNotifyConnectionStatus = 0x34,
+    SassNotifySassInitiatedConnection = 0x40,
+    SassInUseAccountKey = 0x41,
+    SassSendCustomData = 0x42,
+    SassSetDropConnectionTarget = 0x43,
+}
+
+#[derive(Debug)]
+pub enum DeviceActionEventCode {
+    Ring = 1,
+}
+
+#[derive(Debug)]
+pub enum AcknowledgementCode {
+    Ack = 1,
+    Nack = 2,
+}
+
+#[derive(Debug)]
+pub enum MessageGroup {
+    Bluetooth(BluetoothCode),
+    CompanionAppEvent(CompanionAppEventCode),
+    DeviceInformationEvent(DeviceInformationEventCode),
+    DeviceActionEvent(DeviceActionEventCode),
+    Sass(SassCode),
+    Acknowledgement(AcknowledgementCode),
+}
+
+
+/// A packet that is sent over the RFCOMM Message Stream.
+pub struct MessageStreamPacket {
+    pub group: MessageGroup,
+    pub additional_data: Vec<u8>,
+}
\ No newline at end of file