diff --git a/README.md b/README.md
index 21905fd..3623468 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,10 @@
 # Model Context Protocol PHP SDK [WIP]
 
+> [!IMPORTANT]  
+> **PHP LLM becomes Symfony AI** - this project moved to [github.com/symfony/ai](https://github.com/symfony/ai).
+> Please use the new repository for all future development, issues, and contributions.
+> Thanks for your contributions - we hope to see you at Symfony AI!
+
 Model Context Protocol SDK for Client and Server applications in PHP.
 **Currently only support Tool Calls as Server via Server-Sent Events (SSE) and STDIO.**
 
diff --git a/composer.json b/composer.json
index af056aa..949f445 100644
--- a/composer.json
+++ b/composer.json
@@ -13,6 +13,7 @@
             "email": "tobias.nyholm@gmail.com"
         }
     ],
+    "abandoned": "symfony/mcp-sdk",
     "require": {
         "php": "^8.2",
         "psr/log": "^3.0",