diff --git a/src/jsx.erl b/src/jsx.erl
index b389d8b..7d87092 100644
--- a/src/jsx.erl
+++ b/src/jsx.erl
@@ -27,7 +27,7 @@
 -export([to_term/1, to_term/2]).
 -export([is_json/1, is_json/2, is_term/1, is_term/2]).
 -export([format/1, format/2, minify/1, prettify/1]).
--export([encoder/3, decoder/3]).
+-export([encoder/3, decoder/3, parser/3]).
 %% old api
 -export([term_to_json/1, term_to_json/2, json_to_term/1, json_to_term/2]).
 
@@ -37,8 +37,8 @@
 -endif.
 
 
--type json() :: list({binary(), json()})
-    | list(json())
+-type json_term() :: list({binary(), json_term()})
+    | list(json_term())
     | true
     | false
     | null
@@ -46,9 +46,11 @@
     | float()
     | binary().
 
+-type json_text() :: binary().
 
--spec to_json(Source::json()) -> binary().
--spec to_json(Source::json(), Opts::jsx_to_json:opts()) -> binary().
+
+-spec to_json(Source::json_term()) -> json_text().
+-spec to_json(Source::json_term(), Opts::jsx_to_json:opts()) -> json_text().
 
 to_json(Source) -> to_json(Source, []).
 
@@ -61,26 +63,26 @@ term_to_json(Source) -> to_json(Source, []).
 term_to_json(Source, Opts) -> to_json(Source, Opts).
 
 
--spec format(Source::binary()) -> binary().
--spec format(Source::binary(), Opts::jsx_to_json:opts()) -> binary().
+-spec format(Source::json_text()) -> json_text().
+-spec format(Source::json_text(), Opts::jsx_to_json:opts()) -> json_text().
 
 format(Source) -> format(Source, []).
 
 format(Source, Opts) -> jsx_to_json:format(Source, Opts).
 
 
--spec minify(Source::binary()) -> binary().
+-spec minify(Source::json_text()) -> json_text().
 
 minify(Source) -> format(Source, []).
 
 
--spec prettify(Source::binary()) -> binary().
+-spec prettify(Source::json_text()) -> json_text().
 
 prettify(Source) -> format(Source, [space, {indent, 2}]).
 
 
--spec to_term(Source::binary()) -> json().
--spec to_term(Source::binary(), Opts::jsx_to_term:opts()) -> json().
+-spec to_term(Source::json_text()) -> json_term().
+-spec to_term(Source::json_text(), Opts::jsx_to_term:opts()) -> json_term().
 
 to_term(Source) -> to_term(Source, []).
 
@@ -109,16 +111,49 @@ is_term(Source) -> is_term(Source, []).
 is_term(Source, Opts) -> jsx_verify:is_term(Source, Opts).
 
 
--spec decoder(Handler::module(), State::any(), Opts::list()) -> fun().
+-type decoder() :: fun((json_text() | end_stream) -> any()).
+
+-spec decoder(Handler::module(), State::any(), Opts::list()) -> decoder().
 
 decoder(Handler, State, Opts) -> jsx_decoder:decoder(Handler, State, Opts).
 
 
--spec encoder(Handler::module(), State::any(), Opts::list()) -> fun().
+-type encoder() :: fun((json_term() | end_stream) -> any()).
+
+-spec encoder(Handler::module(), State::any(), Opts::list()) -> encoder().
 
 encoder(Handler, State, Opts) -> jsx_encoder:encoder(Handler, State, Opts).
 
 
+-type token() :: [token()]
+    | start_object
+    | end_object
+    | start_array
+    | end_array
+    | {key, binary()}
+    | {string, binary()}
+    | binary()
+    | {number, integer() | float()}
+    | {integer, integer()}
+    | {float, float()}
+    | integer()
+    | float()
+    | {literal, true}
+    | {literal, false}
+    | {literal, null}
+    | true
+    | false
+    | null
+    | end_json.
+    
+
+-type parser() :: fun((token() | end_stream) -> any()).
+
+-spec parser(Handler::module(), State::any(), Opts::list()) -> parser().
+
+parser(Handler, State, Opts) -> jsx_parser:parser(Handler, State, Opts).
+
+
 
 -ifdef(TEST).
 -include_lib("eunit/include/eunit.hrl").