diff --git a/pkgs/development/python-modules/vulcan-api/default.nix b/pkgs/development/python-modules/vulcan-api/default.nix
deleted file mode 100644
index 1af45db9e138..000000000000
--- a/pkgs/development/python-modules/vulcan-api/default.nix
+++ /dev/null
@@ -1,60 +0,0 @@
-{
-  lib,
-  aenum,
-  aiodns,
-  aiohttp,
-  buildPythonPackage,
-  setuptools,
-  faust-cchardet,
-  fetchFromGitHub,
-  pyopenssl,
-  pythonOlder,
-  pytz,
-  related,
-  uonet-request-signer-hebe,
-  yarl,
-}:
-
-buildPythonPackage rec {
-  pname = "vulcan-api";
-  version = "2.4.2";
-  pyproject = true;
-
-  disabled = pythonOlder "3.6";
-
-  src = fetchFromGitHub {
-    owner = "kapi2289";
-    repo = "vulcan-api";
-    tag = "v${version}";
-    hash = "sha256-oWtyqFacWkKhv4QvbZCuq3KHlM/o7SfENg90O/ygXUw=";
-  };
-
-  pythonRemoveDeps = [ "related-without-future" ];
-
-  build-system = [ setuptools ];
-
-  dependencies = [
-    aenum
-    aiodns
-    aiohttp
-    faust-cchardet
-    pyopenssl
-    pytz
-    related
-    uonet-request-signer-hebe
-    yarl
-  ];
-
-  # Project has no tests
-  doCheck = false;
-
-  pythonImportsCheck = [ "vulcan" ];
-
-  meta = with lib; {
-    description = "Python library for UONET+ e-register API";
-    homepage = "https://vulcan-api.readthedocs.io/";
-    changelog = "https://github.com/kapi2289/vulcan-api/releases/tag/v${version}";
-    license = licenses.mit;
-    maintainers = with maintainers; [ fab ];
-  };
-}
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index e50caf0a211c..f21e5ef1cd17 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -849,6 +849,7 @@ mapAliases ({
   vega_datasets = vega-datasets; # added 2023-11-04
   ViennaRNA = viennarna; # added 2023-08-23
   virtual-display = throw "virtual-display has been renamed to PyVirtualDisplay"; # added 2023-01-07
+  vulcan-api = throw "vulcan-api has been removed. Their API has changed and they don't allow access from unofficial software anymore."; # added 2025-09-05
   Wand = wand; # added 2022-11-13
   wasm = throw "wasm has been removed because it no longer builds and is unmaintained"; # added 2023-05-20
   WazeRouteCalculator = wazeroutecalculator; # added 2021-09-29
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 3559a4276897..d3c15d681ed1 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -19726,8 +19726,6 @@ self: super: with self; {
 
   vttlib = callPackage ../development/python-modules/vttlib { };
 
-  vulcan-api = callPackage ../development/python-modules/vulcan-api { };
-
   vulkan = callPackage ../development/python-modules/vulkan { };
 
   vultr = callPackage ../development/python-modules/vultr { };