diff --git a/Dockerfile b/Dockerfile
index a2a4c94..6d0eab3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,6 +11,15 @@ LABEL description="SmartTools - Personal AI-powered CLI command builder"
 RUN apt-get update && apt-get install -y --no-install-recommends \
     git \
     curl \
+    # Node.js for Claude CLI
+    nodejs \
+    npm \
+    # Browser for OAuth authentication
+    firefox-esr \
+    # X11 libraries for display
+    libx11-6 \
+    libxext6 \
+    libxrender1 \
     && rm -rf /var/lib/apt/lists/*
 
 # Set working directory
diff --git a/docker-compose.yml b/docker-compose.yml
index ade2510..0ff07cc 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -48,6 +48,26 @@ services:
     stdin_open: true
     tty: true
 
+  # ============================================================================
+  # Setup (with display for browser-based auth)
+  # ============================================================================
+  # Use this for installing providers that need browser authentication
+  # First run: xhost +local:docker
+  setup:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: smarttools:latest
+    environment:
+      - DISPLAY=${DISPLAY:-:0}
+    volumes:
+      - smarttools-data:/root/.smarttools
+      - /tmp/.X11-unix:/tmp/.X11-unix:ro
+    command: ["/bin/bash"]
+    stdin_open: true
+    tty: true
+    network_mode: host
+
 volumes:
   smarttools-data:
     # Persists ~/.smarttools between container runs
@@ -68,3 +88,10 @@ volumes:
 #
 # Interactive shell:
 #   docker-compose run --rm shell
+#
+# Install providers (with browser auth):
+#   xhost +local:docker
+#   docker-compose run --rm setup
+#   # Inside container:
+#   smarttools providers install    # Interactive guide
+#   # Select a provider, it will install and open browser for auth