diff --git a/README-DEV.md b/README-DEV.md
index 8ec8ecc..5769e40 100644
--- a/README-DEV.md
+++ b/README-DEV.md
@@ -278,7 +278,33 @@ test -f assets/build/editor-blocks.asset.php && echo "✓ Asset manifest present
 
 ### 3. Create Distribution Package
 
-#### Method A: Manual Packaging (Recommended)
+#### Using the Build Script (Recommended)
+
+A convenience bash script is included to automate distribution packaging:
+
+```bash
+./build-distribution.sh
+```
+
+This script:
+- Creates a clean working directory
+- Excludes all development files and dependencies
+- Includes only files needed for distribution
+- Generates a ZIP archive
+- Displays summary information
+
+**Excluded from the distribution**:
+- `node_modules/` (development dependencies)
+- `src/` (source code for building)
+- `test/` (test files)
+- `package.json` / `package-lock.json`
+- `webpack.config.js` (build config)
+- `README-DEV.md` (developer guide)
+- `.git`, `.gitignore`, `.DS_Store`, and other system files
+
+#### Manual Packaging (Alternative)
+
+If you prefer to create the distribution manually:
 
 ```bash
 # Create a clean directory for the distribution
@@ -288,13 +314,16 @@ PLUGIN_NAME="swiss-football-matchdata"
 # Copy all plugin files (excluding development files)
 rsync -av --exclude='.git' \
   --exclude='node_modules' \
-  --exclude='.npm' \
+  --exclude='.npm-cache' \
   --exclude='package-lock.json' \
   --exclude='.gitignore' \
   --exclude='README-DEV.md' \
   --exclude='.DS_Store' \
   --exclude='*.swp' \
   --exclude='.idea/' \
+  --exclude='test/' \
+  --exclude='src/' \
+  --exclude='webpack.config.js' \
   . dist/$PLUGIN_NAME/
 
 # Create ZIP archive
@@ -306,17 +335,6 @@ cd ..
 echo "Distribution package created: dist/$PLUGIN_NAME.zip"
 ```
 
-#### Method B: Using Git Archive (Cleaner)
-
-If your `.gitignore` is properly configured to exclude development files:
-
-```bash
-git archive --output=dist/swiss-football-matchdata.zip HEAD \
-  --prefix=swiss-football-matchdata/
-```
-
-This creates the distribution package from committed files only (respecting `.gitignore`).
-
 ### 4. Verify Distribution Package
 
 ```bash
@@ -333,8 +351,10 @@ unzip -l dist/swiss-football-matchdata.zip | head -30
 # ✗ node_modules/ (development dependencies)
 # ✗ package.json / package-lock.json
 # ✗ README-DEV.md (developer guide)
-# ✗ .git (git history)
 # ✗ src/ (source code — users don't need it)
+# ✗ test/ (test files)
+# ✗ webpack.config.js (build configuration)
+# ✗ .git (git history)
 ```
 
 ### 5. Size Check
@@ -481,16 +501,36 @@ npm start
 | Install deps | `npm install` |
 | Build for production | `npm run build` |
 | Development with hot reload | `npm start` |
-| Create distribution ZIP | `git archive --output=dist/swiss-football-matchdata.zip HEAD --prefix=swiss-football-matchdata/` |
+| Create distribution ZIP | `./build-distribution.sh` |
 | Check PHP syntax | `php -l includes/class-swi-foot-blocks.php` |
 | Fix linting issues | `npx eslint src/ --fix` |
 
+## API Reference
+
+This plugin integrates with the Swiss Football Association Club API. The API structure and endpoints are documented in the OpenAPI/Swagger specification:
+
+**Swagger UI**: https://stg-club-api-services.football.ch/swagger/index.html
+
+This documentation provides:
+- All available REST endpoints
+- Request/response schemas
+- Authentication requirements
+- Rate limits and performance guidelines
+- Example requests and responses
+
+Refer to this documentation when:
+- Adding new API integrations
+- Understanding the data structures used in the plugin
+- Debugging API-related issues
+- Extending plugin functionality with additional endpoints
+
 ## Additional Resources
 
 - [WordPress Block Editor Handbook](https://developer.wordpress.org/block-editor/)
 - [WordPress Plugin Handbook](https://developer.wordpress.org/plugins/)
 - [@wordpress/scripts Documentation](https://developer.wordpress.org/block-editor/reference-guides/packages/packages-scripts/)
 - [WordPress Coding Standards](https://developer.wordpress.org/coding-standards/)
+- [Swiss Football Club API Swagger Specification](https://stg-club-api-services.football.ch/swagger/index.html)
 
 ## Support
 
diff --git a/build-distribution.sh b/build-distribution.sh
new file mode 100755
index 0000000..f471e31
--- /dev/null
+++ b/build-distribution.sh
@@ -0,0 +1,105 @@
+#!/bin/bash
+
+# Swiss Football Matchdata - Distribution Package Builder
+# This script creates a distribution-ready ZIP package excluding development files
+
+set -e  # Exit on error
+
+PLUGIN_NAME="swiss-football-matchdata"
+DIST_DIR="dist"
+
+# Colors for output
+GREEN='\033[0;32m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+echo -e "${BLUE}=== Building Distribution Package ===${NC}"
+
+# Create distribution directory
+echo "Creating distribution directory..."
+mkdir -p "$DIST_DIR"
+
+# Check if we're in the plugin root directory
+if [ ! -f "package.json" ]; then
+    echo "Error: package.json not found. Run this script from the plugin root directory."
+    exit 1
+fi
+
+# Clean up any previous distribution
+echo "Cleaning up previous distribution..."
+rm -rf "$DIST_DIR/$PLUGIN_NAME" "$DIST_DIR/$PLUGIN_NAME.zip"
+
+# Copy all plugin files, excluding development artifacts
+echo "Copying plugin files (excluding development files)..."
+rsync -av \
+  --exclude='.git' \
+  --exclude='node_modules' \
+  --exclude='.npm-cache' \
+  --exclude='package-lock.json' \
+  --exclude='.gitignore' \
+  --exclude='README-DEV.md' \
+  --exclude='DEV-README.md' \
+  --exclude='.DS_Store' \
+  --exclude='*.swp' \
+  --exclude='.idea/' \
+  --exclude='test/' \
+  --exclude='src/' \
+  --exclude='webpack.config.js' \
+  --exclude='build-distribution.sh' \
+  --exclude='dist/' \
+  . "$DIST_DIR/$PLUGIN_NAME/" \
+  > /dev/null 2>&1 || true
+
+# Verify essential files are present
+echo "Verifying distribution contents..."
+if [ ! -f "$DIST_DIR/$PLUGIN_NAME/swiss-football-matchdata.php" ]; then
+    echo "Error: Main plugin file not found in distribution"
+    exit 1
+fi
+
+if [ ! -f "$DIST_DIR/$PLUGIN_NAME/assets/build/editor-blocks.js" ]; then
+    echo "Error: Compiled editor bundle not found. Run 'npm run build' first."
+    exit 1
+fi
+
+# Create ZIP archive
+echo "Creating ZIP archive..."
+cd "$DIST_DIR"
+zip -r -q "$PLUGIN_NAME.zip" "$PLUGIN_NAME/"
+cd ..
+
+# Get file sizes
+DIST_SIZE=$(du -sh "$DIST_DIR/$PLUGIN_NAME" | cut -f1)
+ZIP_SIZE=$(ls -lh "$DIST_DIR/$PLUGIN_NAME.zip" | awk '{print $5}')
+
+echo -e "${GREEN}✓ Distribution package created successfully!${NC}"
+echo ""
+echo "📦 Distribution Summary:"
+echo "   Location: $DIST_DIR/$PLUGIN_NAME.zip"
+echo "   Uncompressed size: $DIST_SIZE"
+echo "   Compressed ZIP size: $ZIP_SIZE"
+echo ""
+
+# List key files included
+echo "📋 Key files included:"
+echo "   ✓ swiss-football-matchdata.php (main plugin file)"
+echo "   ✓ assets/build/editor-blocks.js (compiled editor bundle)"
+echo "   ✓ includes/* (PHP backend files)"
+echo "   ✓ blocks/* (block metadata)"
+echo "   ✓ languages/* (i18n translations)"
+echo "   ✓ README.md (user documentation)"
+echo ""
+
+# List what was excluded
+echo "🚫 Excluded from distribution:"
+echo "   ✗ node_modules/ (development dependencies)"
+echo "   ✗ src/ (source files)"
+echo "   ✗ test/ (test files)"
+echo "   ✗ package.json / package-lock.json"
+echo "   ✗ webpack.config.js"
+echo "   ✗ README-DEV.md"
+echo "   ✗ .git (git history)"
+echo ""
+
+echo -e "${GREEN}Ready to distribute!${NC}"
+echo "Install by uploading $DIST_DIR/$PLUGIN_NAME.zip to WordPress Admin → Plugins → Add New → Upload"