diff --git a/pkgs/applications/networking/instant-messengers/oysttyer/default.nix b/pkgs/applications/networking/instant-messengers/oysttyer/default.nix
deleted file mode 100644
index 5dc09ae1f3ee..000000000000
--- a/pkgs/applications/networking/instant-messengers/oysttyer/default.nix
+++ /dev/null
@@ -1,41 +0,0 @@
-{ stdenv, lib, perl, perlPackages, coreutils,
-fetchFromGitHub, makeWrapper }:
-
-stdenv.mkDerivation rec {
-  pname = "oysttyer";
-  version = "2.10.0";
-
-  src = fetchFromGitHub {
-    owner  = "oysttyer";
-    repo   = "oysttyer";
-    rev    = version;
-    sha256 = "0cm1hvi68iqgjsg15xdii271pklgzjn9j9afb1c460z71kgy3wz2";
-  };
-
-  nativeBuildInputs = [ makeWrapper ];
-  buildInputs = [
-    perl
-  ];
-
-  propagatedBuildInputs = with perlPackages; [
-    DateTimeFormatDateParse
-    TermReadLineTTYtter
-    TermReadKey
-  ];
-
-  installPhase = ''
-    ${coreutils}/bin/install -Dm755 \
-      oysttyer.pl \
-      $out/bin/oysttyer
-
-    wrapProgram $out/bin/oysttyer \
-      --prefix PERL5LIB : $PERL5LIB
-  '';
-
-  meta = with lib; {
-    description = "Perl Console Twitter Client";
-    homepage    = "http://oysttyer.github.io/";
-    maintainers = with maintainers; [ woffs ];
-    license = with licenses; [ ffsl ];
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index d327a66542d6..18957005dd3c 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1182,6 +1182,7 @@ mapAliases {
   osxfuse = macfuse-stubs; # Added 2021-03-20
   ovn-lts = throw "ovn-lts has been removed. Please use the latest version available under ovn"; # Added 2024-08-24
   oxen = throw "'oxen' has been removed, because it was broken, outdated and unmaintained"; # Added 2023-12-09
+  oysttyer = throw "oysttyer has been removed; it is no longer maintained because of Twitter disabling free API access"; # Added 2024-09-23
 
   ### P ###
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6fe7041f49f8..2743dd522693 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -13250,8 +13250,6 @@ with pkgs;
 
   tvm = callPackage ../development/compilers/tvm { };
 
-  oysttyer = callPackage ../applications/networking/instant-messengers/oysttyer { };
-
   ttfb = callPackage ../development/tools/ttfb { };
 
   twilight = callPackage ../tools/graphics/twilight {