diff --git a/pkgs/development/python-modules/pyrail/default.nix b/pkgs/development/python-modules/pyrail/default.nix
new file mode 100644
index 000000000000..1d0003d29af2
--- /dev/null
+++ b/pkgs/development/python-modules/pyrail/default.nix
@@ -0,0 +1,56 @@
+{
+  aiohttp,
+  buildPythonPackage,
+  fetchFromGitHub,
+  lib,
+  mashumaro,
+  poetry-core,
+  pytest-asyncio,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "pyrail";
+  version = "0.4.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "tjorim";
+    repo = "pyrail";
+    tag = "v${version}";
+    hash = "sha256-6CE8FrBCVcO88kGwqAMBx9dp5b27oeCm/w1PrEf6a0E=";
+  };
+
+  build-system = [ poetry-core ];
+
+  dependencies = [
+    aiohttp
+    mashumaro
+  ] ++ mashumaro.optional-dependencies.orjson;
+
+  pythonImportsCheck = [ "pyrail" ];
+
+  nativeCheckInputs = [
+    pytest-asyncio
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # tests connect to the internet
+    "test_get_composition"
+    "test_get_connections"
+    "test_get_disturbances"
+    "test_get_liveboard"
+    "test_get_stations"
+    "test_get_vehicle"
+    "test_liveboard_with_date_time"
+  ];
+
+  meta = {
+    changelog = "https://github.com/tjorim/pyrail/releases/tag/${src.tag}";
+    description = "Async Python wrapper for the iRail API";
+    homepage = "https://github.com/tjorim/pyrail";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ dotlambda ];
+  };
+}
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index e979b170aa0c..7aeda49df62a 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -3823,7 +3823,8 @@
       ];
     "nmbs" =
       ps: with ps; [
-      ]; # missing inputs: pyrail
+        pyrail
+      ];
     "no_ip" =
       ps: with ps; [
       ];
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 6a8f0f2eaac9..81bab3536b73 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -10747,6 +10747,8 @@ self: super: with self; {
 
   pypoolstation = callPackage ../development/python-modules/pypoolstation { };
 
+  pyrail = callPackage ../development/python-modules/pyrail { };
+
   pyrdfa3 = callPackage ../development/python-modules/pyrdfa3 { };
 
   pyre-extensions = callPackage ../development/python-modules/pyre-extensions { };