diff --git a/.config/api_config.json b/.config/api_config.json
index e8f23a3..df3a29e 100644
--- a/.config/api_config.json
+++ b/.config/api_config.json
@@ -1,4 +1,5 @@
 {
+  "api_base": "https://api.openai.com/v1",
   "api_key": "",
   "engine": "gpt-3.5-turbo",
   "max_tokens": 3600,
diff --git a/doc/Config.md b/doc/Config.md
index 32f9e5e..0ee6657 100644
--- a/doc/Config.md
+++ b/doc/Config.md
@@ -6,6 +6,8 @@
 
 ```json
 {
+  // OpenAI Base URL(must endswith "/v1")
+  "api_base": "https://api.openai.com/v1",
   // OpenAI Account API_KEY
   "api_key": "",
   // ID of the model to use
diff --git a/doc/Config_ZH.md b/doc/Config_ZH.md
index 7af4169..0d3cf9a 100644
--- a/doc/Config_ZH.md
+++ b/doc/Config_ZH.md
@@ -6,6 +6,8 @@
 
 ```json
 {
+  // OpenAI Base URL（也可以是任意兼容 OpenAI 的 API 服务地址）
+  "api_base": "https://api.openai.com/v1",
   // OpenAI 账户构建的 API_KEY
   "api_key": "",
   // 需要的模型名称
diff --git a/services/chat/ChatGPTAPI.py b/services/chat/ChatGPTAPI.py
index d2d35d9..0612fb5 100644
--- a/services/chat/ChatGPTAPI.py
+++ b/services/chat/ChatGPTAPI.py
@@ -38,6 +38,7 @@ def __init__(
         """
         Initialize Chatbot with API key (from https://platform.openai.com/account/api-keys)
         """
+        self.api_base = (config.get("api_base") or "https://api.openai.com/v1").rstrip("/")
         self.api_key = config["api_key"]
         self.engine = config["engine"]
         self.max_tokens = config["max_tokens"]
@@ -192,7 +193,7 @@ def ask(self, prompt: str, timeout: float = 120, access_internet=False, access_r
 
             try:
                 response = self.session.post(
-                    url="https://api.openai.com/v1/chat/completions",
+                    url=f"{self.api_base}/chat/completions",
                     headers={"Authorization": f"Bearer {self.api_key}"},
                     json={
                         "model": self.engine,
diff --git a/shared/config.py b/shared/config.py
index 14d00cc..402ecbd 100644
--- a/shared/config.py
+++ b/shared/config.py
@@ -5,7 +5,6 @@
 # api model check
 with open('.config/api_config.json', encoding='utf-8') as f:
     api_config = json.load(f)
-f.close()
 
 if api_config['engine'] not in [
     'gpt-3.5-turbo',