diff --git a/api/tests/unit_tests/services/auth/test_auth_type.py b/api/tests/unit_tests/services/auth/test_auth_type.py
new file mode 100644
index 000000000..94073f451
--- /dev/null
+++ b/api/tests/unit_tests/services/auth/test_auth_type.py
@@ -0,0 +1,150 @@
+import pytest
+
+from services.auth.auth_type import AuthType
+
+
+class TestAuthType:
+    """Test cases for AuthType enum"""
+
+    def test_auth_type_is_str_enum(self):
+        """Test that AuthType is properly a StrEnum"""
+        assert issubclass(AuthType, str)
+        assert hasattr(AuthType, "__members__")
+
+    def test_auth_type_has_expected_values(self):
+        """Test that all expected auth types exist with correct values"""
+        expected_values = {
+            "FIRECRAWL": "firecrawl",
+            "WATERCRAWL": "watercrawl",
+            "JINA": "jinareader",
+        }
+
+        # Verify all expected members exist
+        for member_name, expected_value in expected_values.items():
+            assert hasattr(AuthType, member_name)
+            assert getattr(AuthType, member_name).value == expected_value
+
+        # Verify no extra members exist
+        assert len(AuthType) == len(expected_values)
+
+    @pytest.mark.parametrize(
+        ("auth_type", "expected_string"),
+        [
+            (AuthType.FIRECRAWL, "firecrawl"),
+            (AuthType.WATERCRAWL, "watercrawl"),
+            (AuthType.JINA, "jinareader"),
+        ],
+    )
+    def test_auth_type_string_representation(self, auth_type, expected_string):
+        """Test string representation of auth types"""
+        assert str(auth_type) == expected_string
+        assert auth_type.value == expected_string
+
+    @pytest.mark.parametrize(
+        ("auth_type", "compare_value", "expected_result"),
+        [
+            (AuthType.FIRECRAWL, "firecrawl", True),
+            (AuthType.WATERCRAWL, "watercrawl", True),
+            (AuthType.JINA, "jinareader", True),
+            (AuthType.FIRECRAWL, "FIRECRAWL", False),  # Case sensitive
+            (AuthType.FIRECRAWL, "watercrawl", False),
+            (AuthType.JINA, "jina", False),  # Full value mismatch
+        ],
+    )
+    def test_auth_type_comparison(self, auth_type, compare_value, expected_result):
+        """Test auth type comparison with strings"""
+        assert (auth_type == compare_value) is expected_result
+
+    def test_auth_type_iteration(self):
+        """Test that AuthType can be iterated over"""
+        auth_types = list(AuthType)
+        assert len(auth_types) == 3
+        assert AuthType.FIRECRAWL in auth_types
+        assert AuthType.WATERCRAWL in auth_types
+        assert AuthType.JINA in auth_types
+
+    def test_auth_type_membership(self):
+        """Test membership checking for AuthType"""
+        assert "firecrawl" in [auth.value for auth in AuthType]
+        assert "watercrawl" in [auth.value for auth in AuthType]
+        assert "jinareader" in [auth.value for auth in AuthType]
+        assert "invalid" not in [auth.value for auth in AuthType]
+
+    def test_auth_type_invalid_attribute_access(self):
+        """Test accessing non-existent auth type raises AttributeError"""
+        with pytest.raises(AttributeError):
+            _ = AuthType.INVALID_TYPE
+
+    def test_auth_type_immutability(self):
+        """Test that enum values cannot be modified"""
+        # In Python 3.11+, enum members are read-only
+        with pytest.raises(AttributeError):
+            AuthType.FIRECRAWL = "modified"
+
+    def test_auth_type_from_value(self):
+        """Test creating AuthType from string value"""
+        assert AuthType("firecrawl") == AuthType.FIRECRAWL
+        assert AuthType("watercrawl") == AuthType.WATERCRAWL
+        assert AuthType("jinareader") == AuthType.JINA
+
+        # Test invalid value
+        with pytest.raises(ValueError) as exc_info:
+            AuthType("invalid_auth_type")
+        assert "invalid_auth_type" in str(exc_info.value)
+
+    def test_auth_type_name_property(self):
+        """Test the name property of enum members"""
+        assert AuthType.FIRECRAWL.name == "FIRECRAWL"
+        assert AuthType.WATERCRAWL.name == "WATERCRAWL"
+        assert AuthType.JINA.name == "JINA"
+
+    @pytest.mark.parametrize(
+        "auth_type",
+        [AuthType.FIRECRAWL, AuthType.WATERCRAWL, AuthType.JINA],
+    )
+    def test_auth_type_isinstance_checks(self, auth_type):
+        """Test isinstance checks for auth types"""
+        assert isinstance(auth_type, AuthType)
+        assert isinstance(auth_type, str)
+        assert isinstance(auth_type.value, str)
+
+    def test_auth_type_hash(self):
+        """Test that auth types are hashable and can be used in sets/dicts"""
+        auth_set = {AuthType.FIRECRAWL, AuthType.WATERCRAWL, AuthType.JINA}
+        assert len(auth_set) == 3
+
+        auth_dict = {
+            AuthType.FIRECRAWL: "firecrawl_handler",
+            AuthType.WATERCRAWL: "watercrawl_handler",
+            AuthType.JINA: "jina_handler",
+        }
+        assert auth_dict[AuthType.FIRECRAWL] == "firecrawl_handler"
+
+    def test_auth_type_json_serializable(self):
+        """Test that auth types can be JSON serialized"""
+        import json
+
+        auth_data = {
+            "provider": AuthType.FIRECRAWL,
+            "enabled": True,
+        }
+
+        # Should serialize to string value
+        json_str = json.dumps(auth_data, default=str)
+        assert '"provider": "firecrawl"' in json_str
+
+    def test_auth_type_matches_factory_usage(self):
+        """Test that all AuthType values are handled by ApiKeyAuthFactory"""
+        # This test verifies that the enum values match what's expected
+        # by the factory implementation
+        from services.auth.api_key_auth_factory import ApiKeyAuthFactory
+
+        for auth_type in AuthType:
+            # Should not raise ValueError for valid auth types
+            try:
+                auth_class = ApiKeyAuthFactory.get_apikey_auth_factory(auth_type)
+                assert auth_class is not None
+            except ImportError:
+                # It's OK if the actual auth implementation doesn't exist
+                # We're just testing that the enum value is recognized
+                pass