diff --git a/metagpt/config.py b/metagpt/config.py
index f1c869b6c..05949408d 100644
--- a/metagpt/config.py
+++ b/metagpt/config.py
@@ -50,7 +50,7 @@ class Config(metaclass=Singleton):
         if (not self.openai_api_key or "YOUR_API_KEY" == self.openai_api_key) and (
             not self.anthropic_api_key or "YOUR_API_KEY" == self.anthropic_api_key
         ):
-            raise NotConfiguredException("Set OPENAI_API_KEY or Anthropic_API_KEY first")
+            logger.warning("Set OPENAI_API_KEY or Anthropic_API_KEY first")
         self.openai_api_base = self._get("OPENAI_API_BASE")
         if not self.openai_api_base or "YOUR_API_BASE" == self.openai_api_base:
             openai_proxy = self._get("OPENAI_PROXY") or self.global_proxy