diff --git a/api/onnx_web/convert/__main__.py b/api/onnx_web/convert/__main__.py
index bfeabb00..08c83caa 100644
--- a/api/onnx_web/convert/__main__.py
+++ b/api/onnx_web/convert/__main__.py
@@ -304,7 +304,10 @@ def main() -> int:
     args = parser.parse_args()
     logger.info("CLI arguments: %s", args)
 
-    ctx = ConversionContext(half=args.half, opset=args.opset, token=args.token)
+    ctx = ConversionContext.from_environ()
+    ctx.half = args.half
+    ctx.opset = args.opset
+    ctx.token = args.token
     logger.info("converting models in %s using %s", ctx.model_path, ctx.training_device)
 
     if ctx.half and ctx.training_device != "cuda":
diff --git a/api/onnx_web/convert/utils.py b/api/onnx_web/convert/utils.py
index 0f63230d..f7c41cb5 100644
--- a/api/onnx_web/convert/utils.py
+++ b/api/onnx_web/convert/utils.py
@@ -24,11 +24,12 @@ class ConversionContext(ServerContext):
     def __init__(
         self,
         model_path: Optional[str] = None,
-        device: Optional[str] = None,
         cache_path: Optional[str] = None,
+        device: Optional[str] = None,
         half: Optional[bool] = False,
         opset: Optional[int] = None,
         token: Optional[str] = None,
+        **kwargs,
     ) -> None:
         super().__init__(self, model_path=model_path, cache_path=cache_path)
 
diff --git a/api/onnx_web/utils.py b/api/onnx_web/utils.py
index 8c2bb24e..59860639 100644
--- a/api/onnx_web/utils.py
+++ b/api/onnx_web/utils.py
@@ -48,7 +48,7 @@ class ServerContext:
         num_workers = int(environ.get("ONNX_WEB_NUM_WORKERS", 1))
         cache_limit = int(environ.get("ONNX_WEB_CACHE_MODELS", num_workers + 2))
 
-        return ServerContext(
+        return cls(
             bundle_path=environ.get(
                 "ONNX_WEB_BUNDLE_PATH", path.join("..", "gui", "out")
             ),