diff --git a/config/config.yaml b/config/config.yaml
index bed67083c..249552693 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -2,10 +2,10 @@
 # The configuration of key.yaml has a higher priority and will not enter git
 
 #### if OpenAI
-## The official OPENAI_API_BASE is https://api.openai.com/v1
-## If the official OPENAI_API_BASE is not available, we recommend using the [openai-forward](https://github.com/beidongjiedeguang/openai-forward).
-## Or, you can configure OPENAI_PROXY to access official OPENAI_API_BASE.
-OPENAI_API_BASE: "https://api.openai.com/v1"
+## The official OPENAI_BASE_URL is https://api.openai.com/v1/
+## If the official OPENAI_BASE_URL is not available, we recommend using the [openai-forward](https://github.com/beidongjiedeguang/openai-forward).
+## Or, you can configure OPENAI_PROXY to access official OPENAI_BASE_URL.
+OPENAI_BASE_URL: "https://api.openai.com/v1/"
 #OPENAI_PROXY: "http://127.0.0.1:8118"
 #OPENAI_API_KEY: "YOUR_API_KEY"   # set the value to sk-xxx if you host the openai interface for open llm model
 OPENAI_API_MODEL: "gpt-4"
@@ -25,7 +25,7 @@ RPM: 10
 #### if AZURE, check https://github.com/openai/openai-cookbook/blob/main/examples/azure/chat.ipynb
 #### You can use ENGINE or DEPLOYMENT mode
 #OPENAI_API_TYPE: "azure"
-#OPENAI_API_BASE: "YOUR_AZURE_ENDPOINT"
+#OPENAI_BASE_URL: "YOUR_AZURE_ENDPOINT"
 #OPENAI_API_KEY: "YOUR_AZURE_API_KEY"
 #OPENAI_API_VERSION: "YOUR_AZURE_API_VERSION"
 #DEPLOYMENT_NAME: "YOUR_DEPLOYMENT_NAME"
diff --git a/docs/FAQ-EN.md b/docs/FAQ-EN.md
index f9df50caf..1c5b4a86a 100644
--- a/docs/FAQ-EN.md
+++ b/docs/FAQ-EN.md
@@ -83,10 +83,10 @@
 
 1.  PRD stuck / unable to access/ connection interrupted
 
-    1.  The official OPENAI_API_BASE address is `https://api.openai.com/v1`
-    1.  If the official OPENAI_API_BASE address is inaccessible in your environment (this can be verified with curl), it's recommended to configure using the reverse proxy OPENAI_API_BASE provided by libraries such as openai-forward. For instance, `OPENAI_API_BASE: "``https://api.openai-forward.com/v1``"`
-    1.  If the official OPENAI_API_BASE address is inaccessible in your environment (again, verifiable via curl), another option is to configure the OPENAI_PROXY parameter. This way, you can access the official OPENAI_API_BASE via a local proxy. If you don't need to access via a proxy, please do not enable this configuration; if accessing through a proxy is required, modify it to the correct proxy address. Note that when OPENAI_PROXY is enabled, don't set OPENAI_API_BASE.
-    1.  Note: OpenAI's default API design ends with a v1. An example of the correct configuration is: `OPENAI_API_BASE: "``https://api.openai.com/v1``"`
+    1.  The official OPENAI_BASE_URL address is `https://api.openai.com/v1/`
+    1.  If the official OPENAI_BASE_URL address is inaccessible in your environment (this can be verified with curl), it's recommended to configure using the reverse proxy OPENAI_BASE_URL provided by libraries such as openai-forward. For instance, `OPENAI_BASE_URL: "``https://api.openai-forward.com/v1/``"`
+    1.  If the official OPENAI_BASE_URL address is inaccessible in your environment (again, verifiable via curl), another option is to configure the OPENAI_PROXY parameter. This way, you can access the official OPENAI_BASE_URL via a local proxy. If you don't need to access via a proxy, please do not enable this configuration; if accessing through a proxy is required, modify it to the correct proxy address. Note that when OPENAI_PROXY is enabled, don't set OPENAI_BASE_URL.
+    1.  Note: OpenAI's default API design ends with a v1. An example of the correct configuration is: `OPENAI_BASE_URL: "``https://api.openai.com/v1/``"`
 
 1.  Absolutely! How can I assist you today?
 
diff --git a/docs/README_JA.md b/docs/README_JA.md
index 411d190b4..33b08b770 100644
--- a/docs/README_JA.md
+++ b/docs/README_JA.md
@@ -219,7 +219,7 @@ # 設定ファイルをコピーし、必要な修正を加える。
 | 変数名                                  | config/key.yaml                           | env                                             |
 | --------------------------------------- | ----------------------------------------- | ----------------------------------------------- |
 | OPENAI_API_KEY # 自分のキーに置き換える | OPENAI_API_KEY: "sk-..."                  | export OPENAI_API_KEY="sk-..."                  |
-| OPENAI_API_BASE # オプション            | OPENAI_API_BASE: "https://<YOUR_SITE>/v1" | export OPENAI_API_BASE="https://<YOUR_SITE>/v1" |
+| OPENAI_BASE_URL # オプション            | OPENAI_BASE_URL: "https://<YOUR_SITE>/v1/" | export OPENAI_BASE_URL="https://<YOUR_SITE>/v1/" |
 
 ## チュートリアル: スタートアップの開始
 
diff --git a/docs/tutorial/usage.md b/docs/tutorial/usage.md
index ee87b65c9..f8a25c84f 100644
--- a/docs/tutorial/usage.md
+++ b/docs/tutorial/usage.md
@@ -13,7 +13,7 @@ # Copy the configuration file and make the necessary modifications.
 | Variable Name                              | config/key.yaml                           | env                                             |
 | ------------------------------------------ | ----------------------------------------- | ----------------------------------------------- |
 | OPENAI_API_KEY # Replace with your own key | OPENAI_API_KEY: "sk-..."                  | export OPENAI_API_KEY="sk-..."                  |
-| OPENAI_API_BASE # Optional                 | OPENAI_API_BASE: "https://<YOUR_SITE>/v1" | export OPENAI_API_BASE="https://<YOUR_SITE>/v1" |
+| OPENAI_BASE_URL # Optional                 | OPENAI_BASE_URL: "https://<YOUR_SITE>/v1/" | export OPENAI_BASE_URL="https://<YOUR_SITE>/v1/" |
 
 ### Initiating a startup
 
diff --git a/docs/tutorial/usage_cn.md b/docs/tutorial/usage_cn.md
index 4b3bdd2c3..ddd1c2267 100644
--- a/docs/tutorial/usage_cn.md
+++ b/docs/tutorial/usage_cn.md
@@ -13,7 +13,7 @@ # 复制配置文件并进行必要的修改
 | 变量名                              | config/key.yaml                           | env                                             |
 | ----------------------------------- | ----------------------------------------- | ----------------------------------------------- |
 | OPENAI_API_KEY # 用您自己的密钥替换 | OPENAI_API_KEY: "sk-..."                  | export OPENAI_API_KEY="sk-..."                  |
-| OPENAI_API_BASE # 可选              | OPENAI_API_BASE: "https://<YOUR_SITE>/v1" | export OPENAI_API_BASE="https://<YOUR_SITE>/v1" |
+| OPENAI_BASE_URL # 可选              | OPENAI_BASE_URL: "https://<YOUR_SITE>/v1/" | export OPENAI_BASE_URL="https://<YOUR_SITE>/v1/" |
 
 ### 示例：启动一个创业公司
 
diff --git a/metagpt/config.py b/metagpt/config.py
index 3f9e742bd..a6ecab5ff 100644
--- a/metagpt/config.py
+++ b/metagpt/config.py
@@ -46,11 +46,13 @@ class Config(metaclass=Singleton):
         self.openai_api_key = self._get("OPENAI_API_KEY")
         self.anthropic_api_key = self._get("Anthropic_API_KEY")
         self.zhipuai_api_key = self._get("ZHIPUAI_API_KEY")
-        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) and \
-                (not self.zhipuai_api_key or "YOUR_API_KEY" == self.zhipuai_api_key):
+        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)
+            and (not self.zhipuai_api_key or "YOUR_API_KEY" == self.zhipuai_api_key)
+        ):
             raise NotConfiguredException("Set OPENAI_API_KEY or Anthropic_API_KEY or ZHIPUAI_API_KEY first")
-        self.openai_api_base = self._get("OPENAI_API_BASE")
+        self.openai_api_base = self._get("OPENAI_BASE_URL")
         openai_proxy = self._get("OPENAI_PROXY") or self.global_proxy
         if openai_proxy:
             openai.proxy = openai_proxy