diff --git a/stdlib/2.7/json.pyi b/stdlib/2.7/json.pyi
index 1b0c51741..7547250c5 100644
--- a/stdlib/2.7/json.pyi
+++ b/stdlib/2.7/json.pyi
@@ -52,3 +52,47 @@ def load(fp: IO[str],
     parse_constant: Optional[Callable[[str], Any]] = ...,
     object_pairs_hook: Optional[Callable[[List[Tuple[Any, Any]]], Any]] = ...,
     **kwds: Any) -> Any: ...
+
+class JSONDecoder(object):
+    def __init__(self,
+        encoding: Union[Text, bytes] = ...,
+        object_hook: Callable[..., Any] = ...,
+        parse_float: Callable[[str], float] = ...,
+        parse_int: Callable[[str], int] = ...,
+        parse_constant: Callable[[str], Any] = ...,
+        strict: bool = ...,
+        object_pairs_hook: Callable[..., Any] = ...) -> None: ...
+
+    def decode(self, s: Union[Text, bytes], _w = ...) -> Any: ...
+
+    def raw_decode(self,
+        s: Union[Text, bytes],
+        idx: int = ...) -> Tuple[Any, Any]: ...
+
+class JSONEncoder(object):
+    item_separator = ... # type: str
+    key_separator = ... # type: str
+    skipkeys = ... # type: bool
+    ensure_ascii = ... # type: bool
+    check_circular = ... # type: bool
+    allow_nan = ... # type: bool
+    sort_keys = ... # type: bool
+    indent = ... # type: int
+
+    def __init__(self,
+        skipkeys: bool = ...,
+        ensure_ascii: bool = ...,
+        check_circular: bool = ...,
+        allow_nan: bool = ...,
+        sort_keys: bool = ...,
+        indent: int = ...,
+        separators: Tuple[Union[Text, bytes], Union[Text, bytes]] = ...,
+        encoding: Union[Text, bytes] = ...,
+        default: Callable[..., Any] = ...) -> None: ...
+
+    def default(self, o: Any) -> Any: ...
+
+    def encode(self, o: Any) -> str: ...
+
+    def iterencode(self, o: Any, _one_shot: bool = ...) -> str: ...
+