diff --git a/pkgs/development/python-modules/json-stream/default.nix b/pkgs/development/python-modules/json-stream/default.nix
new file mode 100644
index 000000000000..4ae01488db69
--- /dev/null
+++ b/pkgs/development/python-modules/json-stream/default.nix
@@ -0,0 +1,39 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytestCheckHook
+, pythonOlder
+, requests
+}:
+
+buildPythonPackage rec {
+  pname = "json-stream";
+  version = "1.3.0";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-J5DBa8zeandkDIXpEaRN6cneZIIG2aRHS5zjmM/H0Uw=";
+  };
+
+  propagatedBuildInputs = [
+    requests
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "json_stream"
+  ];
+
+  meta = with lib; {
+    description = "Streaming JSON parser";
+    homepage = "https://github.com/daggaz/json-stream";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/tools/security/mitmproxy2swagger/default.nix b/pkgs/tools/security/mitmproxy2swagger/default.nix
new file mode 100644
index 000000000000..61c27633c4ad
--- /dev/null
+++ b/pkgs/tools/security/mitmproxy2swagger/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, fetchFromGitHub
+, python3
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "mitmproxy2swagger";
+  version = "0.6.0";
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "alufers";
+    repo = pname;
+    rev = version;
+    hash = "sha256-NTxRq7lIm3Y5RxOxdXiKVv39Co8GG9YE2kuEryRUw1Y=";
+  };
+
+  nativeBuildInputs = with python3.pkgs; [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = with python3.pkgs; [
+    json-stream
+    mitmproxy
+    ruamel-yaml
+  ];
+
+  # No tests available
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "mitmproxy2swagger"
+  ];
+
+  meta = with lib; {
+    description = "Tool to automagically reverse-engineer REST APIs";
+    homepage = "https://github.com/alufers/mitmproxy2swagger";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2b3575040922..8c02a134c3af 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8381,6 +8381,8 @@ with pkgs;
 
   mitmproxy = with python3Packages; toPythonApplication mitmproxy;
 
+  mitmproxy2swagger = callPackage ../tools/security/mitmproxy2swagger { };
+
   mjpegtools = callPackage ../tools/video/mjpegtools { };
 
   mjpegtoolsFull = mjpegtools.override {
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 84bf55b54c6d..beae79b86acc 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4550,6 +4550,8 @@ in {
 
   json-schema-for-humans = callPackage ../development/python-modules/json-schema-for-humans { };
 
+  json-stream = callPackage ../development/python-modules/json-stream { };
+
   jsonnet = buildPythonPackage { inherit (pkgs.jsonnet) name src; };
 
   jsonpatch = callPackage ../development/python-modules/jsonpatch { };