diff --git a/src/lib.rs b/src/lib.rs
index a84f7f0..1780111 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -163,22 +163,23 @@ pub async fn handle_health(_req: Request<StorageService>) -> tide::Result<Respon
 }
 
 pub async fn handle_store(mut req: Request<StorageService>, no_ttl_permanent: bool) -> tide::Result<Response> {
-    let data: StoreRequest = match req.body_json().await {
-        Ok(data) => data,
-        Err(e) => {
-            return Ok(Response::builder(StatusCode::BadRequest)
-                .body(format!("Invalid request: {}", e))
-                .build());
-        }
-    };
+    // Extract key from URL parameter
+    let key: String = req.param("key")?.to_string();
 
-    if data.key.len() != 64 || !data.key.chars().all(|c| c.is_ascii_hexdigit()) {
+    // Validate key format
+    if key.len() != 64 || !key.chars().all(|c| c.is_ascii_hexdigit()) {
         return Ok(Response::builder(StatusCode::BadRequest)
             .body("Invalid key: must be a 32 bytes hex string.".to_string())
             .build());
     }
 
-    let live_for: Option<Duration> = if let Some(ttl) = data.ttl {
+    // Get TTL from query parameter (optional)
+    let ttl: Option<u64> = req.url().query_pairs()
+        .find(|(key, _)| key == "ttl")
+        .and_then(|(_, value)| value.parse().ok());
+    log::info!("ttl: {:?}", ttl);
+
+    let live_for: Option<Duration> = if let Some(ttl) = ttl {
         if ttl < 60 {
             return Ok(Response::builder(StatusCode::BadRequest)
                 .body(format!("Invalid ttl: must be at least {} seconds.", 60))
@@ -204,11 +205,12 @@ pub async fn handle_store(mut req: Request<StorageService>, no_ttl_permanent: bo
         None => None,
     };
 
-    let value_bytes = match hex::decode(&data.value) {
-        Ok(value) => value,
+    // Read binary data directly from request body
+    let value_bytes = match req.body_bytes().await {
+        Ok(bytes) => bytes,
         Err(e) => {
             return Ok(Response::builder(StatusCode::BadRequest)
-                .body(format!("Invalid request: {}", e))
+                .body(format!("Failed to read request body: {}", e))
                 .build());
         }
     };
@@ -216,7 +218,7 @@ pub async fn handle_store(mut req: Request<StorageService>, no_ttl_permanent: bo
     log::info!("received {} bytes", value_bytes.len());
 
     let svc = req.state();
-    match svc.store_data(&data.key, &value_bytes, expires_at).await {
+    match svc.store_data(&key, &value_bytes, expires_at).await {
         Ok(()) => Ok(Response::builder(StatusCode::Ok)
             .body(serde_json::to_value(&ApiResponse {
                 message: "Data stored successfully.".to_string(),
@@ -242,9 +244,9 @@ pub async fn handle_retrieve(req: Request<StorageService>) -> tide::Result<Respo
     let svc = req.state();
     match svc.retrieve_data(&key).await {
         Ok(value) => {
-            let encoded_value = hex::encode(value);
             Ok(Response::builder(StatusCode::Ok)
-                .body(serde_json::to_value(&RetrieveResponse { key, value: encoded_value })?)
+                .header("Content-Type", "application/octet-stream")
+                .body(value)
                 .build())
         }
         Err(e) => Ok(Response::builder(StatusCode::NotFound).body(e).build()),
@@ -255,7 +257,7 @@ pub fn create_app(no_ttl_permanent: bool, storage_dir: impl Into<String>) -> tid
     let svc = StorageService::new(storage_dir);
     let mut app = tide::with_state(svc);
     app.at("/health").get(handle_health);
-    app.at("/store").post(move |req| handle_store(req, no_ttl_permanent));
+    app.at("/store/:key").post(move |req| handle_store(req, no_ttl_permanent));
     app.at("/retrieve/:key").get(handle_retrieve);
     app
 }
diff --git a/src/main.rs b/src/main.rs
index c597cde..236fd23 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,7 @@ use sdk_storage::{StorageService, create_app};
 use tide::log;
 
 const STORAGE_DIR: &str = "./storage";
-const PORT: u16 = 8081;
+const PORT: u16 = 8080;
 const DEFAULT_TTL: u64 = 86400;