diff --git a/pkgs/development/python-modules/leanclient/default.nix b/pkgs/development/python-modules/leanclient/default.nix
new file mode 100644
index 000000000000..8193c41d1585
--- /dev/null
+++ b/pkgs/development/python-modules/leanclient/default.nix
@@ -0,0 +1,46 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+
+  # build-system
+  hatchling,
+
+  # dependencies
+  orjson,
+  psutil,
+  tqdm,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "leanclient";
+  version = "0.9.4";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "oOo0oOo";
+    repo = "leanclient";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-BmIvjFhhlXnyDZWNUZAq41TA+Q5v9UW63rljoeYl44Q=";
+  };
+
+  build-system = [ hatchling ];
+
+  dependencies = [
+    orjson
+    psutil
+    tqdm
+  ];
+
+  # Tests require a real Lean toolchain
+  doCheck = false;
+
+  pythonImportsCheck = [ "leanclient" ];
+
+  meta = {
+    description = "Python client for the Lean theorem prover LSP";
+    homepage = "https://github.com/oOo0oOo/leanclient";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ remix7531 ];
+  };
+})
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 46a8625b989f..09467bc2aa23 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8585,6 +8585,8 @@ self: super: with self; {
 
   leanblueprint = callPackage ../development/python-modules/leanblueprint { };
 
+  leanclient = callPackage ../development/python-modules/leanclient { };
+
   leaone-ble = callPackage ../development/python-modules/leaone-ble { };
 
   leather = callPackage ../development/python-modules/leather { };