diff --git a/tuf/api/metadata.py b/tuf/api/metadata.py
index 0b88f4c0d2..4d376921aa 100644
--- a/tuf/api/metadata.py
+++ b/tuf/api/metadata.py
@@ -575,9 +575,11 @@ def to_securesystemslib_key(self) -> Dict[str, Any]:
 
     @classmethod
     def from_securesystemslib_key(cls, key_dict: Dict[str, Any]) -> "Key":
-        """
-        Creates a Key object from a securesystemlib key dict representation
+        """Creates a Key object from a securesystemlib key dict representation
         removing the private key from keyval.
+
+        Args:
+            key_dict: A key in securesystemlib dict representation.
         """
         key_meta = sslib_keys.format_keyval_to_metadata(
             key_dict["keytype"],
@@ -762,10 +764,13 @@ def to_dict(self) -> Dict[str, Any]:
         )
         return root_dict
 
-    # Update key for a role.
     def add_key(self, role: str, key: Key) -> None:
         """Adds new signing key for delegated role 'role'.
 
+        Args:
+            role: The name of the role, for which 'key' is added.
+            key: The signing key to be added for 'role'.
+
         Raises:
             ValueError: If 'role' doesn't exist.
         """
@@ -777,6 +782,10 @@ def add_key(self, role: str, key: Key) -> None:
     def remove_key(self, role: str, keyid: str) -> None:
         """Removes key from 'role' and updates the key store.
 
+        Args:
+            role: The name of the role, for which a signing key is removed.
+            key: The identifier of the key to be removed for 'role'.
+
         Raises:
             ValueError: If 'role' doesn't exist or if 'role' doesn't include
                 the key.
@@ -1151,6 +1160,10 @@ def is_delegated_path(self, target_filepath: str) -> bool:
         supported as target path separator. Leading separators are not handled
         as special cases (see `TUF specification on targetpath
         <https://theupdateframework.github.io/specification/latest/#targetpath>`_).
+
+        Args:
+            target_filepath: URL path to a target file, relative to a base
+                targets URL.
         """
 
         if self.path_hash_prefixes is not None:
@@ -1440,6 +1453,10 @@ def update(self, fileinfo: TargetFile) -> None:
     def add_key(self, role: str, key: Key) -> None:
         """Adds new signing key for delegated role 'role'.
 
+        Args:
+            role: The name of the role, for which 'key' is added.
+            key: The signing key to be added for 'role'.
+
         Raises:
             ValueError: If there are no delegated roles or if 'role' is not
                 delegated by this Target.
@@ -1453,6 +1470,10 @@ def remove_key(self, role: str, keyid: str) -> None:
         """Removes key from delegated role 'role' and updates the delegations
         key store.
 
+        Args:
+            role: The name of the role, for which a signing key is removed.
+            key: The identifier of the key to be removed for 'role'.
+
         Raises:
             ValueError: If there are no delegated roles or if 'role' is not
                 delegated by this Target or if key is not used by 'role'.