diff --git a/rucat_server/src/authentication.rs b/rucat_server/src/authentication.rs
index 1d664e7..44a0b8b 100644
--- a/rucat_server/src/authentication.rs
+++ b/rucat_server/src/authentication.rs
@@ -15,7 +15,7 @@ enum Credentials {
 }
 
 /// Bear authentication
-pub async fn auth(
+pub(crate) async fn auth(
     headers: HeaderMap,
     request: Request,
     next: Next,
diff --git a/rucat_server/src/cluster_router.rs b/rucat_server/src/cluster_router.rs
index 4f04b07..404aa79 100644
--- a/rucat_server/src/cluster_router.rs
+++ b/rucat_server/src/cluster_router.rs
@@ -117,7 +117,7 @@ async fn list_clusters(State(state): State<AppState<'_>>) {
 }
 
 /// Pass the data store endpoint later
-pub fn get_cluster_router() -> Router<AppState<'static>> {
+pub(crate) fn get_cluster_router() -> Router<AppState<'static>> {
     Router::new()
         .route("/", post(create_cluster))
         .route("/:id", get(get_cluster))
diff --git a/rucat_server/src/lib.rs b/rucat_server/src/lib.rs
index 9d1c37d..22676d8 100644
--- a/rucat_server/src/lib.rs
+++ b/rucat_server/src/lib.rs
@@ -1,3 +1,28 @@
-pub mod authentication;
-pub mod cluster_router;
-pub mod state;
+use authentication::auth;
+use axum::{middleware, Router};
+use cluster_router::get_cluster_router;
+use rucat_common::error::Result;
+use state::{data_store::DataStore, AppState};
+use surrealdb::{engine::local::Mem, Surreal};
+use tower_http::trace::TraceLayer;
+
+pub(crate) mod authentication;
+pub(crate) mod cluster_router;
+pub(crate) mod state;
+
+/// This is the only entry for users to get the rucat server.
+pub async fn get_server() -> Result<Router> {
+    // setup tracing
+    tracing_subscriber::fmt::init();
+
+    let db = Surreal::new::<Mem>(()).await?;
+    db.use_ns("test").use_db("test").await?;
+
+    let app_state = AppState::new(DataStore::connect_embedded_db(db));
+
+    Ok(Router::new()
+        .nest("/cluster", get_cluster_router())
+        .layer(middleware::from_fn(auth))
+        .layer(TraceLayer::new_for_http())
+        .with_state(app_state))
+}
diff --git a/rucat_server/src/main.rs b/rucat_server/src/main.rs
index ac28346..8ce0b42 100644
--- a/rucat_server/src/main.rs
+++ b/rucat_server/src/main.rs
@@ -1,30 +1,11 @@
-use axum::{middleware, Router};
 use rucat_common::error::Result;
-use rucat_server::{
-    authentication::auth,
-    cluster_router::get_cluster_router,
-    state::{data_store::DataStore, AppState},
-};
-use surrealdb::{engine::local::Mem, Surreal};
-use tower_http::trace::TraceLayer;
+use rucat_server::get_server;
 
 #[tokio::main]
 /// Start Rucat server
 async fn main() -> Result<()> {
     static ENDPOINT: &str = "127.0.0.1:3000";
-    // setup tracing
-    tracing_subscriber::fmt::init();
-
-    let db = Surreal::new::<Mem>(()).await?;
-    db.use_ns("test").use_db("test").await?;
-
-    let app_state = AppState::new(DataStore::connect_embedded_db(db));
-
-    let app = Router::new()
-        .nest("/cluster", get_cluster_router())
-        .layer(middleware::from_fn(auth))
-        .layer(TraceLayer::new_for_http())
-        .with_state(app_state);
+    let app = get_server().await?;
 
     // run it
     let listener = tokio::net::TcpListener::bind(ENDPOINT).await?;
diff --git a/rucat_server/src/state/data_store.rs b/rucat_server/src/state/data_store.rs
index 481a0b2..d6a1f46 100644
--- a/rucat_server/src/state/data_store.rs
+++ b/rucat_server/src/state/data_store.rs
@@ -16,7 +16,7 @@ struct Record {
 /// Store the metadata of Cluster
 /// The lifetime here reprensent that of the URI of the DB server.
 #[derive(Clone)]
-pub enum DataStore<'a> {
+pub(crate) enum DataStore<'a> {
     /// embedded database in memory
     Embedded {
         store: Surreal<Db>, //embedded surrealdb?
@@ -31,12 +31,12 @@ impl<'a> DataStore<'a> {
     const TABLE: &'static str = "clusters";
 
     /// use an in memory data store
-    pub fn connect_embedded_db(db: Surreal<Db>) -> Self {
+    pub(crate) fn connect_embedded_db(db: Surreal<Db>) -> Self {
         Self::Embedded { store: db }
     }
 
     /// data store that connects to a SurrealDB
-    pub fn connect_serreal_db(uri: SurrealDBURI<'a>) -> Self {
+    pub(crate) fn connect_serreal_db(uri: SurrealDBURI<'a>) -> Self {
         Self::Server { uri }
     }
 
diff --git a/rucat_server/src/state/mod.rs b/rucat_server/src/state/mod.rs
index 6a6b7c1..5d2f019 100644
--- a/rucat_server/src/state/mod.rs
+++ b/rucat_server/src/state/mod.rs
@@ -2,19 +2,19 @@
 
 use self::data_store::DataStore;
 
-pub mod data_store;
+pub(crate) mod data_store;
 
 #[derive(Clone)]
-pub struct AppState<'a> {
+pub(crate) struct AppState<'a> {
     data_store: DataStore<'a>,
 }
 
 impl<'a> AppState<'a> {
-    pub fn new(data_store: DataStore<'a>) -> Self {
+    pub(crate) fn new(data_store: DataStore<'a>) -> Self {
         Self { data_store }
     }
 
-    pub fn get_data_store(&self) -> &DataStore {
+    pub(crate) fn get_data_store(&self) -> &DataStore {
         &self.data_store
     }
 }