diff --git a/pkgs/development/python-modules/nsapi/default.nix b/pkgs/development/python-modules/nsapi/default.nix
new file mode 100644
index 000000000000..453eeb2c9519
--- /dev/null
+++ b/pkgs/development/python-modules/nsapi/default.nix
@@ -0,0 +1,37 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, future
+, pythonOlder
+, pytz
+}:
+
+buildPythonPackage rec {
+  pname = "nsapi";
+  version = "3.0.5";
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "aquatix";
+    repo = "ns-api";
+    rev = "v${version}";
+    sha256 = "0i1zkvi4mrhkh1gxzpa54mq8mb76s9nf3jxxhpqia56nkq8f8krb";
+  };
+
+  propagatedBuildInputs = [
+    future
+    pytz
+  ];
+
+  # Project has no tests
+  doCheck = false;
+
+  pythonImportsCheck = [ "ns_api" ];
+
+  meta = with lib; {
+    description = "Python module to query routes of the Dutch railways";
+    homepage = "https://github.com/aquatix/ns-api/";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index fc23422e8964..02458dd2fe36 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -548,7 +548,7 @@
     "namecheapdns" = ps: with ps; [ defusedxml ];
     "nanoleaf" = ps: with ps; [ pynanoleaf ];
     "neato" = ps: with ps; [ aiohttp-cors pybotvac ];
-    "nederlandse_spoorwegen" = ps: with ps; [ ]; # missing inputs: nsapi
+    "nederlandse_spoorwegen" = ps: with ps; [ nsapi ];
     "nello" = ps: with ps; [ ]; # missing inputs: pynello
     "ness_alarm" = ps: with ps; [ ]; # missing inputs: nessclient
     "nest" = ps: with ps; [ aiohttp-cors ha-ffmpeg python-nest ]; # missing inputs: google-nest-sdm
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 3229a266db6d..20e9481450be 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4710,6 +4710,8 @@ in {
 
   npyscreen = callPackage ../development/python-modules/npyscreen { };
 
+  nsapi = callPackage ../development/python-modules/nsapi { };
+
   ntc-templates = callPackage ../development/python-modules/ntc-templates { };
 
   ntlm-auth = callPackage ../development/python-modules/ntlm-auth { };