diff --git a/pkgs/by-name/co/connect-box/package.nix b/pkgs/by-name/co/connect-box/package.nix
new file mode 100644
index 000000000000..87769f0d7360
--- /dev/null
+++ b/pkgs/by-name/co/connect-box/package.nix
@@ -0,0 +1,5 @@
+{ python3Packages }:
+
+(python3Packages.toPythonApplication python3Packages.connect-box3).overrideAttrs {
+  __structuredAttrs = true;
+}
diff --git a/pkgs/development/python-modules/connect-box3/default.nix b/pkgs/development/python-modules/connect-box3/default.nix
new file mode 100644
index 000000000000..e9fd4a33a4d5
--- /dev/null
+++ b/pkgs/development/python-modules/connect-box3/default.nix
@@ -0,0 +1,52 @@
+{
+  lib,
+  buildPythonPackage,
+  cyclopts,
+  fetchFromGitHub,
+  hatchling,
+  httpx,
+  mashumaro,
+  pytest-asyncio,
+  pytest-httpx,
+  pytestCheckHook,
+  rich,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "connect-box3";
+  version = "0.2.1";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "home-assistant-ecosystem";
+    repo = "python-connect-box3";
+    tag = finalAttrs.version;
+    hash = "sha256-eLrCMziV/+maLIded1n0248Xb14uVBps/gzTUz8NMMc=";
+  };
+
+  build-system = [ hatchling ];
+
+  dependencies = [
+    cyclopts
+    httpx
+    mashumaro
+    rich
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    pytest-asyncio
+    pytest-httpx
+  ];
+
+  pythonImportsCheck = [ "connect_box3" ];
+
+  meta = {
+    description = "Interact with a Connect Box 3 modem/router";
+    homepage = "https://github.com/home-assistant-ecosystem/python-connect-box3";
+    changelog = "https://github.com/home-assistant-ecosystem/python-connect-box3/releases/tag/${finalAttrs.src.tag}";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ fab ];
+    mainProgram = "connect-box";
+  };
+})
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 91208e3b4e53..87f315ef871e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3160,6 +3160,8 @@ self: super: with self; {
 
   connect-box = callPackage ../development/python-modules/connect-box { };
 
+  connect-box3 = callPackage ../development/python-modules/connect-box3 { };
+
   connected-components-3d = callPackage ../development/python-modules/connected-components-3d { };
 
   connection-pool = callPackage ../development/python-modules/connection-pool { };