diff --git a/native/native_rust_library/src/lib.rs b/native/native_rust_library/src/lib.rs
--- a/native/native_rust_library/src/lib.rs
+++ b/native/native_rust_library/src/lib.rs
@@ -3,12 +3,16 @@
 use tokio::runtime::{Builder, Runtime};
 use tonic::{transport::Channel, Status};
 use tracing::instrument;
+use tunnelbroker::tunnelbroker_service_client::TunnelbrokerServiceClient;
 
 mod crypto_tools;
 mod identity_client;
 mod identity {
   tonic::include_proto!("identity");
 }
+mod tunnelbroker {
+  tonic::include_proto!("tunnelbroker");
+}
 
 use crypto_tools::generate_device_id;
 use identity::identity_service_client::IdentityServiceClient;
@@ -84,6 +88,12 @@
       user_public_key: String,
     ) -> Result<String>;
 
+    // Tunnelbroker Service Client
+    type TunnelbrokerClient;
+
+    #[cxx_name = "TunnelbrokerInitializeClient"]
+    fn initialize_tunnelbroker_client(addr: String) -> Box<TunnelbrokerClient>;
+
     // Crypto Tools
     fn generate_device_id(device_type: DeviceType) -> Result<String>;
   }
@@ -180,3 +190,16 @@
     user_public_key,
   ))
 }
+
+#[derive(Debug)]
+pub struct TunnelbrokerClient {
+  tunnelbroker_client: TunnelbrokerServiceClient<Channel>,
+}
+
+fn initialize_tunnelbroker_client(addr: String) -> Box<TunnelbrokerClient> {
+  Box::new(TunnelbrokerClient {
+    tunnelbroker_client: RUNTIME
+      .block_on(TunnelbrokerServiceClient::connect(addr))
+      .expect("Failed to create Tokio runtime for the Tunnelbroker client"),
+  })
+}