diff --git a/src/api.rs b/src/api.rs
index bdd214a..3419be1 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -1 +1,32 @@
-//TODO: Api Structure
+use axum::{
+    Router,
+    routing::{get, post}
+};
+
+mod account;
+mod model;
+
+pub fn api_router() -> Router {
+    Router::new()
+        .nest("/account/:user_id", account_router())
+        .route("/predict", 
+            get(model::get_predict)
+        )
+}
+
+fn account_router() -> Router {
+    Router::new()
+        .route("/sign-in",
+            get(account::get_sign_in)
+            .post(account::post_sign_in)
+        )
+        .route("/sign-up",
+            post(account::post_sign_up)
+        )
+        .route("/backup",
+            post(account::post_backup)
+        )
+        .route("/restore",
+            get(account::get_restore)
+        )
+}
diff --git a/src/api/account.rs b/src/api/account.rs
new file mode 100644
index 0000000..f98f71d
--- /dev/null
+++ b/src/api/account.rs
@@ -0,0 +1,8 @@
+pub async fn get_sign_in() {}
+pub async fn post_sign_in() {}
+
+pub async fn post_sign_up() {}
+
+pub async fn post_backup() {}
+
+pub async fn get_restore() {}
diff --git a/src/api/model.rs b/src/api/model.rs
new file mode 100644
index 0000000..6b76f61
--- /dev/null
+++ b/src/api/model.rs
@@ -0,0 +1 @@
+pub async fn get_predict() {}
diff --git a/src/lib.rs b/src/lib.rs
index e010f28..a2e4dc5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-mod api;
+pub mod api;
 mod auth;
 mod backup;
 mod db;
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..9e88f72 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,8 @@
-fn main() {
-    println!("Hello, world!");
+#[tokio::main]
+async fn main() {
+    let app = dermy_server::api::api_router();
+    let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
+
+    axum::serve(listener, app).await.unwrap();
+
 }