diff --git a/gptscript/gptscript.py b/gptscript/gptscript.py
index d7891a8..0ed157e 100644
--- a/gptscript/gptscript.py
+++ b/gptscript/gptscript.py
@@ -53,12 +53,8 @@ def __init__(self, opts: GlobalOptions = None):
         if not (self.opts.URL.startswith("http://") or self.opts.URL.startswith("https://")):
             self.opts.URL = f"http://{self.opts.URL}"
 
-        self.opts.Env.append("GPTSCRIPT_URL=" + self.opts.URL)
-
         if self.opts.Token == "":
             self.opts.Token = os.environ.get("GPTSCRIPT_TOKEN", "")
-        if self.opts.Token != "":
-            self.opts.Env.append("GPTSCRIPT_TOKEN=" + self.opts.Token)
 
     def close(self):
         GPTScript.__gptscript_count -= 1