diff --git a/pkgs/tools/networking/wtfis/000-pyproject-remove-versions.diff b/pkgs/tools/networking/wtfis/000-pyproject-remove-versions.diff
new file mode 100644
index 000000000000..b94ca03bb317
--- /dev/null
+++ b/pkgs/tools/networking/wtfis/000-pyproject-remove-versions.diff
@@ -0,0 +1,29 @@
+diff -Naur source-old/pyproject.toml source-new/pyproject.toml
+--- source-old/pyproject.toml	1980-01-02 00:00:00.000000000 -0300
++++ source-new/pyproject.toml	2023-02-04 10:09:48.087418202 -0300
+@@ -29,11 +29,11 @@
+     "Topic :: Security",
+ ]
+ dependencies = [
+-    "pydantic~=1.10.2",
+-    "python-dotenv~=0.21.0",
+-    "requests~=2.28.1",
+-    "rich~=12.6.0",
+-    "shodan~=1.28.0",
++    "pydantic",
++    "python-dotenv",
++    "requests",
++    "rich",
++    "shodan",
+ ]
+ dynamic = ["version"]
+ 
+@@ -63,7 +63,7 @@
+     "mypy",
+     "pytest",
+     "pytest-cov",
+-    "types-requests~=2.28.1",
++    "types-requests",
+ ]
+ [tool.hatch.envs.default.scripts]
+ typecheck = "mypy -p {args:wtfis}"
diff --git a/pkgs/tools/networking/wtfis/default.nix b/pkgs/tools/networking/wtfis/default.nix
new file mode 100644
index 000000000000..30c2eda8eda0
--- /dev/null
+++ b/pkgs/tools/networking/wtfis/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, python3
+}:
+
+let
+  pname = "wtfis";
+  version = "0.5.1";
+in python3.pkgs.buildPythonApplication {
+  inherit pname version;
+
+  src = fetchFromGitHub {
+    owner = "pirxthepilot";
+    repo = "wtfis";
+    rev = "v${version}";
+    hash = "sha256-XoQ/iJTdZoekA5guxI8POG4NEhN8Up3OuIz344G75ao=";
+  };
+
+  patches = [
+    # TODO: get rid of that newbie patch
+    ./000-pyproject-remove-versions.diff
+  ];
+
+  format = "pyproject";
+
+  propagatedBuildInputs = [
+    python3.pkgs.hatchling
+    python3.pkgs.pydantic
+    python3.pkgs.rich
+    python3.pkgs.shodan
+    python3.pkgs.python-dotenv
+  ];
+
+  meta = {
+    homepage = "https://github.com/pirxthepilot/wtfis";
+    description = "Passive hostname, domain and IP lookup tool for non-robots";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.AndersonTorres ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5ca442444ac9..f07275afe56f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -38796,6 +38796,8 @@ with pkgs;
 
   undaemonize = callPackage ../tools/system/undaemonize {};
 
+  wtfis = callPackage ../tools/networking/wtfis { };
+
   houdini = callPackage ../applications/misc/houdini {};
 
   openfst = callPackage ../development/libraries/openfst {};