diff --git a/pkgs/development/python-modules/qcs-api-client/default.nix b/pkgs/development/python-modules/qcs-api-client/default.nix
new file mode 100644
index 000000000000..1e5e254e4a87
--- /dev/null
+++ b/pkgs/development/python-modules/qcs-api-client/default.nix
@@ -0,0 +1,66 @@
+{ lib
+, attrs
+, buildPythonPackage
+, fetchPypi
+, httpx
+, iso8601
+, pydantic
+, pyjwt
+, pytest-asyncio
+, pytestCheckHook
+, python-dateutil
+, pythonOlder
+, respx
+, retrying
+, rfc3339
+, toml
+}:
+
+buildPythonPackage rec {
+  pname = "qcs-api-client";
+  version = "0.8.0";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1c0g3aa2pk4zd40banap2j797080qivd42q7imla2yvv6cvq24b8";
+  };
+
+  propagatedBuildInputs = [
+    attrs
+    httpx
+    iso8601
+    pydantic
+    pyjwt
+    python-dateutil
+    retrying
+    rfc3339
+    toml
+  ];
+
+  checkInputs = [
+    pytest-asyncio
+    pytestCheckHook
+    respx
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "attrs>=20.1.0,<21.0.0" "attrs" \
+      --replace "httpx>=0.15.0,<0.16.0" "httpx" \
+      --replace "pyjwt>=1.7.1,<2.0.0" "pyjwt"
+  '';
+
+  # Project has no tests
+  doCheck = false;
+
+  pythonImportsCheck = [ "qcs_api_client" ];
+
+  meta = with lib; {
+    description = "Python library for accessing the Rigetti QCS API";
+    homepage = "https://pypi.org/project/qcs-api-client/";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 4b9ea9254386..5494755526f1 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6655,8 +6655,6 @@ in {
 
   pyquery = callPackage ../development/python-modules/pyquery { };
 
-  pyquil = callPackage ../development/python-modules/pyquil { };
-
   pyrabbit2 = callPackage ../development/python-modules/pyrabbit2 { };
 
   pyrad = callPackage ../development/python-modules/pyrad { };
@@ -7605,6 +7603,8 @@ in {
 
   qcengine = callPackage ../development/python-modules/qcengine { };
 
+  qcs-api-client = callPackage ../development/python-modules/qcs-api-client { };
+
   qdarkstyle = callPackage ../development/python-modules/qdarkstyle { };
 
   qdldl = callPackage ../development/python-modules/qdldl { };