diff --git a/central_backend/src/lib.rs b/central_backend/src/lib.rs
index c043b60..50d34af 100644
--- a/central_backend/src/lib.rs
+++ b/central_backend/src/lib.rs
@@ -4,5 +4,6 @@ pub mod crypto;
 pub mod devices;
 pub mod energy;
 pub mod logs;
+pub mod ota;
 pub mod server;
 pub mod utils;
diff --git a/central_backend/src/ota/mod.rs b/central_backend/src/ota/mod.rs
new file mode 100644
index 0000000..ea34968
--- /dev/null
+++ b/central_backend/src/ota/mod.rs
@@ -0,0 +1 @@
+pub mod ota_update;
diff --git a/central_backend/src/ota/ota_update.rs b/central_backend/src/ota/ota_update.rs
new file mode 100644
index 0000000..7c993ea
--- /dev/null
+++ b/central_backend/src/ota/ota_update.rs
@@ -0,0 +1,5 @@
+#[derive(serde::Serialize, serde::Deserialize, Debug, Copy, Clone, Eq, PartialEq)]
+pub enum OTAPlatform {
+    #[serde(rename = "Wt32-Eth01")]
+    Wt32Eth01,
+}
diff --git a/central_backend/src/server/servers.rs b/central_backend/src/server/servers.rs
index 39ba213..9fb7421 100644
--- a/central_backend/src/server/servers.rs
+++ b/central_backend/src/server/servers.rs
@@ -181,7 +181,10 @@ pub async fn secure_server(energy_actor: EnergyActorAddr) -> anyhow::Result<()>
                 web::delete().to(devices_controller::delete_device),
             )
             // OTA API
-            // TODO : list supported platform references
+            .route(
+                "/web_api/ota/supported_platforms",
+                web::get().to(ota_controller::supported_platforms),
+            )
             // TODO : upload a new software update
             // TODO : list ota software update per platform
             // TODO : download a OTA file
diff --git a/central_backend/src/server/web_api/mod.rs b/central_backend/src/server/web_api/mod.rs
index 5b75fab..a967058 100644
--- a/central_backend/src/server/web_api/mod.rs
+++ b/central_backend/src/server/web_api/mod.rs
@@ -2,5 +2,6 @@ pub mod auth_controller;
 pub mod devices_controller;
 pub mod energy_controller;
 pub mod logging_controller;
+pub mod ota_controller;
 pub mod relays_controller;
 pub mod server_controller;
diff --git a/central_backend/src/server/web_api/ota_controller.rs b/central_backend/src/server/web_api/ota_controller.rs
new file mode 100644
index 0000000..9329ad3
--- /dev/null
+++ b/central_backend/src/server/web_api/ota_controller.rs
@@ -0,0 +1,7 @@
+use crate::ota::ota_update::OTAPlatform;
+use crate::server::custom_error::HttpResult;
+use actix_web::HttpResponse;
+
+pub async fn supported_platforms() -> HttpResult {
+    Ok(HttpResponse::Ok().json(vec![OTAPlatform::Wt32Eth01]))
+}