diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..905867e4
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "sdk_storage"]
+	path = sdk_storage
+	url = https://git.4nkweb.com/4nk/sdk_storage.git
+	branch = docker-support
diff --git a/docker-compose.yml b/docker-compose.yml
index 6b204e35..5d929c0b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -230,6 +230,7 @@ services:
     container_name: 4nk-reverse-proxy
     depends_on:
       - sdk_relay_1
+      - sdk_storage
     volumes:
       - ./proxy/nginx.conf:/etc/nginx/conf.d/default.conf:ro
       - ./certs:/etc/nginx/certs:ro
@@ -242,6 +243,18 @@ services:
         aliases:
           - reverse_proxy
 
+  sdk_storage:
+    build: ./sdk_storage
+    container_name: sdk-storage
+    restart: unless-stopped
+    networks:
+      btcnet:
+        aliases:
+          - sdk_storage
+    volumes:
+      - sdk_storage_data:/app/storage
+    # Service interne: aucun port exposé
+
 volumes:
   bitcoin_data:
     name: 4nk_node_bitcoin_data
diff --git a/proxy/nginx.conf b/proxy/nginx.conf
index 3cc66cec..838bfb44 100644
--- a/proxy/nginx.conf
+++ b/proxy/nginx.conf
@@ -45,6 +45,15 @@ server {
     proxy_set_header X-Forwarded-Proto $scheme;
   }
 
+  # sdk_storage HTTP (tide 8081)
+  location /storage/ {
+    proxy_pass http://sdk_storage:8081/;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Proto $scheme;
+  }
+
   # WebSocket sdk_relay
   location /ws/ {
     proxy_pass http://sdk_relay_1:8090;
diff --git a/sdk_storage b/sdk_storage
new file mode 160000
index 00000000..62a97259
--- /dev/null
+++ b/sdk_storage
@@ -0,0 +1 @@
+Subproject commit 62a972594d1051c6089a4043b6c240f3e271d45e