diff --git a/keep/functions/__init__.py b/keep/functions/__init__.py
index cb690ee1cb..8b3aa1e617 100644
--- a/keep/functions/__init__.py
+++ b/keep/functions/__init__.py
@@ -604,3 +604,56 @@ def dictget(data: str | dict, key: str, default: any = None) -> any:
         return default
 
     return data.get(key, default)
+
+
+def dict_set(data: str | dict, key: str, value: any) -> dict:
+    """
+    Sets a key-value pair in a dictionary, returning a new dictionary.
+    
+    Args:
+        data (str | dict): The dictionary to update. Can be a JSON string or dict.
+        key (str): The key to set.
+        value (any): The value to set.
+        
+    Returns:
+        dict: A new dictionary with the key set to the value.
+    """
+    if isinstance(data, str):
+        try:
+            data = json.loads(data)
+        except Exception:
+            data = {}
+
+    if not isinstance(data, dict):
+        data = {}
+
+    import copy
+    dict_copy = copy.deepcopy(data)
+    dict_copy[key] = value
+    return dict_copy
+
+
+def dict_merge(*args) -> dict:
+    """
+    Merges multiple dictionaries into one, returning a new dictionary.
+    Dictionaries passed later override earlier ones.
+    
+    Args:
+        *args: Dictionaries or JSON strings to merge.
+        
+    Returns:
+        dict: A new dictionary containing all merged keys and values.
+    """
+    result = {}
+    for data in args:
+        if isinstance(data, str):
+            try:
+                data = json.loads(data)
+            except Exception:
+                continue
+
+        if isinstance(data, dict):
+            result.update(data)
+            
+    return result
+
diff --git a/tests/test_functions.py b/tests/test_functions.py
index b68356db85..c5866fcfba 100644
--- a/tests/test_functions.py
+++ b/tests/test_functions.py
@@ -1217,3 +1217,48 @@ def test_from_timestamp_with_timezone():
     timestamp = dt.timestamp()
     result = functions.from_timestamp(timestamp, "Europe/Berlin")
     assert result == dt
+
+
+def test_dict_set():
+    """
+    Test dict_set function
+    """
+    # dict input
+    d = {"a": 1, "b": 2}
+    result = functions.dict_set(d, "c", 3)
+    assert result == {"a": 1, "b": 2, "c": 3}
+    # original dict should not be mutated
+    assert d == {"a": 1, "b": 2}
+
+    # string input
+    d_str = '{"a": 1, "b": 2}'
+    result = functions.dict_set(d_str, "c", 3)
+    assert result == {"a": 1, "b": 2, "c": 3}
+
+    # override existing key
+    result = functions.dict_set(d, "b", 4)
+    assert result == {"a": 1, "b": 4}
+
+    # invalid string input
+    result = functions.dict_set("invalid", "a", 1)
+    assert result == {"a": 1}
+
+
+def test_dict_merge():
+    """
+    Test dict_merge function
+    """
+    d1 = {"a": 1, "b": 2}
+    d2 = {"b": 3, "c": 4}
+    d3 = '{"c": 5, "d": 6}'
+    
+    result = functions.dict_merge(d1, d2, d3)
+    assert result == {"a": 1, "b": 3, "c": 5, "d": 6}
+
+    # original dicts should not be mutated
+    assert d1 == {"a": 1, "b": 2}
+
+    # invalid inputs
+    result = functions.dict_merge(d1, "invalid", {"e": 7})
+    assert result == {"a": 1, "b": 2, "e": 7}
+