diff --git a/appdaemon/models/config/plugin.py b/appdaemon/models/config/plugin.py
index 2da1ca1c5..93aa66cf1 100644
--- a/appdaemon/models/config/plugin.py
+++ b/appdaemon/models/config/plugin.py
@@ -3,9 +3,9 @@
 from ssl import _SSLMethod
 from typing import Annotated, Any, Literal
 
-from pydantic import AnyHttpUrl, BaseModel, BeforeValidator, Field, SecretBytes, SecretStr, field_validator, model_validator
+from pydantic import BaseModel, BeforeValidator, ConfigDict, Field, PlainSerializer, SecretBytes, SecretStr, field_validator, model_validator
 from typing_extensions import deprecated
-
+from yarl import URL
 
 from .common import CoercedPath, ParsedTimedelta
 
@@ -86,7 +86,11 @@ class StartupConditions(BaseModel):
 
 
 class HASSConfig(PluginConfig, extra="forbid"):
-    ha_url: AnyHttpUrl = Field(default="http://supervisor/core", validate_default=True) # pyright: ignore[reportAssignmentType]
+    ha_url: Annotated[
+        URL,
+        BeforeValidator(URL),
+        PlainSerializer(str),
+    ] = Field(default="http://supervisor/core", validate_default=True) # pyright: ignore[reportAssignmentType]
     token: SecretStr = Field(default_factory=lambda: SecretStr(os.environ.get("SUPERVISOR_TOKEN"))) # pyright: ignore[reportArgumentType]
     ha_key: Annotated[SecretStr, deprecated("'ha_key' is deprecated. Please use long lived tokens instead")] | None = None
     appdaemon_startup_conditions: StartupConditions | None = None
@@ -108,6 +112,8 @@ class HASSConfig(PluginConfig, extra="forbid"):
     config_sleep_time: ParsedTimedelta = timedelta(seconds=60)
     """The sleep time in the background task that updates the config metadata every once in a while"""
 
+    model_config = ConfigDict(arbitrary_types_allowed=True)
+
     @model_validator(mode="after")
     def custom_validator(self):
         if self.token.get_secret_value() is None:
@@ -117,15 +123,8 @@ def custom_validator(self):
         return self
 
     @property
-    def websocket_url(self) -> str:
-        return f"{self.ha_url!s}api/websocket"
-
-    @property
-    def states_api(self) -> str:
-        return f"{self.ha_url!s}api/states"
-
-    def get_entity_api(self, entity_id: str) -> str:
-        return f"{self.states_api}/{entity_id}"
+    def websocket_url(self) -> URL:
+        return self.ha_url / "api/websocket"
 
     @property
     def auth_json(self) -> dict:
diff --git a/appdaemon/plugins/hass/hassplugin.py b/appdaemon/plugins/hass/hassplugin.py
index b47f7ddeb..1b67cc97f 100644
--- a/appdaemon/plugins/hass/hassplugin.py
+++ b/appdaemon/plugins/hass/hassplugin.py
@@ -14,7 +14,7 @@
 from typing import Any, Literal, Optional
 
 import aiohttp
-from aiohttp import ClientResponse, ClientResponseError, RequestInfo, WSMsgType, WebSocketError
+from aiohttp import ClientResponse, ClientResponseError, RequestInfo, WebSocketError, WSMsgType
 from pydantic import BaseModel
 
 import appdaemon.utils as utils
@@ -456,11 +456,11 @@ async def http_method(
                 appropriate.
         """
         kwargs = utils.clean_http_kwargs(kwargs)
-        url = utils.make_endpoint(f"{self.config.ha_url!s}", endpoint)
+        url = self.config.ha_url / endpoint.lstrip("/")
 
         try:
             self.update_perf(
-                bytes_sent=len(url) + len(json.dumps(kwargs).encode("utf-8")),
+                bytes_sent=len(str(url)) + len(json.dumps(kwargs).encode("utf-8")),
                 requests_sent=1,
             )
 
@@ -884,8 +884,7 @@ async def set_plugin_state(
 
         @utils.warning_decorator(error_text=f"Error setting state for {entity_id}")
         async def safe_set_state(self: "HassPlugin"):
-            api_url = self.config.get_entity_api(entity_id)
-            return await self.http_method("post", api_url, state=state, attributes=attributes)
+            return await self.http_method("post", f"/api/states/{entity_id}", state=state, attributes=attributes)
 
         return await safe_set_state(self)
 
diff --git a/appdaemon/utils.py b/appdaemon/utils.py
index 9e3552295..e6095b5a5 100644
--- a/appdaemon/utils.py
+++ b/appdaemon/utils.py
@@ -1167,15 +1167,6 @@ def clean_http_kwargs(val: Any) -> Any:
     return pruned
 
 
-def make_endpoint(base: str, endpoint: str) -> str:
-    """Formats a URL appropriately with slashes"""
-    if not endpoint.startswith(base):
-        result = f"{base}/{endpoint.strip('/')}"
-    else:
-        result = endpoint
-    return result.strip("/")
-
-
 def unwrapped(func: Callable) -> Callable:
     while hasattr(func, "__wrapped__"):
         func = func.__wrapped__