diff --git a/4_post_to_wiki.py b/4_post_to_wiki.py
new file mode 100644
index 0000000..53767b7
--- /dev/null
+++ b/4_post_to_wiki.py
@@ -0,0 +1,31 @@
+import os
+import mwclient
+import sys
+
+from config import *
+
+# Template strings
+HIDDEN_COMMENT = '<!-- This page is auto-generated. Do not edit manually. -->'
+CATEGORY_TEMPLATE = '\n'.join('[[Category:{0}]]'.format(cat) for cat in CATEGORY_LIST)
+
+# Connect to MediaWiki
+site = mwclient.Site(WIKI_HOST, path=WIKI_PATH)
+site.login(USERNAME, PASSWORD)
+
+# Process and upload each .mediawiki file
+for filename in os.listdir(DIRECTORY):
+    if filename.endswith('.mediawiki'):
+        filepath = os.path.join(DIRECTORY, filename)
+        article_name = ARTICLE_PREFIX + filename.replace('.mediawiki', '')
+
+        with open(filepath, 'r', encoding='utf-8') as f:
+            content = f.read()
+
+        # Compose final content
+        final_content = f"{HIDDEN_COMMENT}\n\n{content}\n\n{CATEGORY_TEMPLATE}"
+
+        # Post to MediaWiki
+        page = site.pages[article_name]
+        page.save(final_content, summary='Automated upload of recipe page')
+
+        print(f"Uploaded: {article_name}")