diff --git a/pkgs/development/python-modules/egauge-async/default.nix b/pkgs/development/python-modules/egauge-async/default.nix
new file mode 100644
index 000000000000..efc63ec440dc
--- /dev/null
+++ b/pkgs/development/python-modules/egauge-async/default.nix
@@ -0,0 +1,55 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  hatchling,
+  uv-dynamic-versioning,
+  httpx,
+  pytest-asyncio,
+  pytest-mock,
+  pytestCheckHook,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "egauge-async";
+  version = "0.4.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "neggert";
+    repo = "egauge-async";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-VESByB7TwB8jjvRMeNGIzJYurKGS4OqDYTw9f1QTyX8=";
+  };
+
+  build-system = [
+    hatchling
+    uv-dynamic-versioning
+  ];
+
+  dependencies = [
+    httpx
+  ];
+
+  nativeCheckInputs = [
+    pytest-asyncio
+    pytest-mock
+    pytestCheckHook
+  ];
+
+  disabledTestMarks = [
+    "integration"
+  ];
+
+  pythonImportsCheck = [
+    "egauge_async"
+  ];
+
+  meta = {
+    description = "Async client for eGauge energy monitor";
+    homepage = "https://github.com/neggert/egauge-async";
+    changelog = "https://github.com/neggert/egauge-async/releases/tag/v${finalAttrs.version}";
+    license = lib.licenses.gpl3Only;
+    maintainers = with lib.maintainers; [ jamiemagee ];
+  };
+})
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index 1874daf94d1b..48943721a15d 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -1449,7 +1449,8 @@
       ];
     "egauge" =
       ps: with ps; [
-      ]; # missing inputs: egauge-async
+        egauge-async
+      ];
     "eheimdigital" =
       ps: with ps; [
         eheimdigital
@@ -7365,6 +7366,7 @@
     "ecowitt"
     "edl21"
     "efergy"
+    "egauge"
     "eheimdigital"
     "eight_sleep"
     "ekeybionyx"
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 36f3713fa276..994e8fb3070b 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4872,6 +4872,8 @@ self: super: with self; {
 
   effect = callPackage ../development/python-modules/effect { };
 
+  egauge-async = callPackage ../development/python-modules/egauge-async { };
+
   eggdeps = callPackage ../development/python-modules/eggdeps { };
 
   eheimdigital = callPackage ../development/python-modules/eheimdigital { };