diff --git a/Makefile.in b/Makefile.in
index e9f0144..e1989ab 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -19,7 +19,7 @@ DIR_LIST=${DEP} ${AUTO} ${EXE} ${OBJ} ${LIB} ${DEP}/auto ${OBJ}/auto
 
 EXE_LIST=${EXE}/telegram-cli
 
-TG_OBJECTS=${OBJ}/main.o ${OBJ}/loop.o ${OBJ}/interface.o ${OBJ}/lua-tg.o
+TG_OBJECTS=${OBJ}/main.o ${OBJ}/loop.o ${OBJ}/interface.o ${OBJ}/lua-tg.o ${OBJ}/json-tg.o
 
 INCLUDE=-I. -I${srcdir} -I${srcdir}/tgl
 CC=@CC@
diff --git a/config.h.in b/config.h.in
index 56902f3..38bec97 100644
--- a/config.h.in
+++ b/config.h.in
@@ -36,6 +36,9 @@
 /* Define to 1 if you have the `event' library (-levent). */
 #undef HAVE_LIBEVENT
 
+/* Define to 1 if you have the `jansson' library (-ljansson). */
+#undef HAVE_LIBJANSSON
+
 /* Define to 1 if you have the `m' library (-lm). */
 #undef HAVE_LIBM
 
@@ -155,6 +158,9 @@
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
+/* use json */
+#undef USE_JSON
+
 /* use lua */
 #undef USE_LUA
 
diff --git a/configure b/configure
index 288d320..ea6dc0f 100755
--- a/configure
+++ b/configure
@@ -694,6 +694,7 @@ with_zlib
 enable_libconfig
 enable_extf
 enable_liblua
+enable_json
 with_progname
 enable_valgrind
 '
@@ -1321,6 +1322,7 @@ Optional Features:
 --enable-libconfig/--disable-libconfig
 --enable-extf/--disable-extf
 --enable-liblua/--disable-liblua
+--enable-json/--disable-json
 --enable-valgrind/--disable-valgrind
 
 Optional Packages:
@@ -5865,7 +5867,130 @@ fi
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libjansson" >&5
+$as_echo_n "checking for libjansson... " >&6; }
+# Check whether --enable-json was given.
+if test "${enable_json+set}" = set; then :
+  enableval=$enable_json;
+  if test "x$enableval" = "xno" ; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: disabled" >&5
+$as_echo "disabled" >&6; }
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: enabled" >&5
+$as_echo "enabled" >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for json_array_set_new in -ljansson" >&5
+$as_echo_n "checking for json_array_set_new in -ljansson... " >&6; }
+if ${ac_cv_lib_jansson_json_array_set_new+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ljansson  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char json_array_set_new ();
+int
+main ()
+{
+return json_array_set_new ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_jansson_json_array_set_new=yes
+else
+  ac_cv_lib_jansson_json_array_set_new=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_jansson_json_array_set_new" >&5
+$as_echo "$ac_cv_lib_jansson_json_array_set_new" >&6; }
+if test "x$ac_cv_lib_jansson_json_array_set_new" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBJANSSON 1
+_ACEOF
+
+  LIBS="-ljansson $LIBS"
+
+else
+  as_fn_error $? "No libjansson found. Try --disable-json" "$LINENO" 5
+fi
+
+
+$as_echo "#define USE_JSON 1" >>confdefs.h
+
+  fi
+
+else
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: enabled" >&5
+$as_echo "enabled" >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for json_array_set_new in -ljansson" >&5
+$as_echo_n "checking for json_array_set_new in -ljansson... " >&6; }
+if ${ac_cv_lib_jansson_json_array_set_new+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ljansson  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char json_array_set_new ();
+int
+main ()
+{
+return json_array_set_new ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_jansson_json_array_set_new=yes
+else
+  ac_cv_lib_jansson_json_array_set_new=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_jansson_json_array_set_new" >&5
+$as_echo "$ac_cv_lib_jansson_json_array_set_new" >&6; }
+if test "x$ac_cv_lib_jansson_json_array_set_new" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBJANSSON 1
+_ACEOF
+
+  LIBS="-ljansson $LIBS"
+
+else
+  as_fn_error $? "No libjansson found. Try --disable-json" "$LINENO" 5
+fi
+
+
+$as_echo "#define USE_JSON 1" >>confdefs.h
+
+
+fi
+
+
 #check for custom prog name
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking progname" >&5
+$as_echo_n "checking progname... " >&6; }
 
 # Check whether --with-progname was given.
 if test "${with_progname+set}" = set; then :
diff --git a/configure.ac b/configure.ac
index 44a6767..3e33cc2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,7 +94,24 @@ AC_ARG_ENABLE(liblua,[--enable-liblua/--disable-liblua],
       ])
   ])
 
+AC_MSG_CHECKING([for libjansson])
+AC_ARG_ENABLE(json,[--enable-json/--disable-json],
+  [ 
+  if test "x$enableval" = "xno" ; then
+    AC_MSG_RESULT([disabled])
+  else
+    AC_MSG_RESULT([enabled])
+    AC_CHECK_LIB([jansson],[json_array_set_new],[],AC_MSG_ERROR([No libjansson found. Try --disable-json]))
+    AC_DEFINE(USE_JSON,1,[use json])
+  fi 
+  ],[
+    AC_MSG_RESULT([enabled])
+    AC_CHECK_LIB([jansson],[json_array_set_new],[],AC_MSG_ERROR([No libjansson found. Try --disable-json]))
+    AC_DEFINE(USE_JSON,1,[use json])
+  ])
+
 #check for custom prog name
+AC_MSG_CHECKING([progname])
 AC_ARG_WITH(progname,[--with-progname=<name>],
   [ 
   if test "x$with_progname" = "xno" ; then
diff --git a/interface.c b/interface.c
index 7f15711..f93fc74 100644
--- a/interface.c
+++ b/interface.c
@@ -74,6 +74,11 @@
 #define OPEN_BIN "xdg-open %s"
 #endif
 
+#ifdef USE_JSON
+#  include "jansson.h"
+#  include "json-tg.h"
+#endif
+
 #define ALLOW_MULT 1
 char *default_prompt = "> ";
 
@@ -82,7 +87,7 @@ extern char one_string[];
 extern int one_string_len;
 extern char *one_string_prompt;
 extern int one_string_flags;
-
+extern int enable_json;
 int disable_auto_accept;
 int msg_num_mode;
 int disable_colors;
@@ -1599,17 +1604,40 @@ void work_modifier (const char *s, int l) {
 
 void print_fail (struct in_ev *ev) {
   mprint_start (ev);
-  mprintf (ev, "FAIL\n");
+  if (!enable_json) {
+    mprintf (ev, "FAIL\n");
+  } else {
+  #ifdef USE_JSON
+    json_t *res = json_object ();
+    assert (json_object_set (res, "result", json_string ("FAIL")) >= 0);
+    char *s = json_dumps (res, 0);
+    mprintf (ev, "%s\n", s);
+    json_decref (res);
+    free (s);
+  #endif
+  }
   mprint_end (ev);
 }
 
 void print_success (struct in_ev *ev) {
-  if (ev) {
+  if (ev || enable_json) {
     mprint_start (ev);
-    mprintf (ev, "SUCCESS\n");
+    if (!enable_json) {
+      mprintf (ev, "SUCCESS\n");
+    } else {
+      #ifdef USE_JSON
+        json_t *res = json_object ();
+        assert (json_object_set (res, "result", json_string ("SUCCESS")) >= 0);
+        char *s = json_dumps (res, 0);
+        mprintf (ev, "%s\n", s);
+        json_decref (res);
+        free (s);
+      #endif
+    }
     mprint_end (ev);
   }
 }
+
 void print_success_gw (struct tgl_state *TLSR, void *extra, int success) {
   assert (TLS == TLSR);
   struct in_ev *ev = extra;
@@ -1644,10 +1672,26 @@ void print_msg_list_gw (struct tgl_state *TLSR, void *extra, int success, int nu
     return;
   }
   if (!success) { print_fail (ev); return; }
+
   mprint_start (ev);
-  int i;
-  for (i = num - 1; i >= 0; i--) {
-    print_message (ev, ML[i]);
+  if (!enable_json) {
+    int i;
+    for (i = num - 1; i >= 0; i--) {
+      print_message (ev, ML[i]);
+    }
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_array ();
+      int i;
+      for (i = num - 1; i >= 0; i--) {
+        json_t *a = json_pack_message (ML[i]);
+        assert (json_array_append (res, a) >= 0);        
+      }
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
   }
   mprint_end (ev);
 }
@@ -1661,7 +1705,17 @@ void print_msg_gw (struct tgl_state *TLSR, void *extra, int success, struct tgl_
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  print_message (ev, M);
+  if (!enable_json) {
+    print_message (ev, M);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_pack_message (M);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
+  }
   mprint_end (ev);
 }
 
@@ -1674,10 +1728,25 @@ void print_user_list_gw (struct tgl_state *TLSR, void *extra, int success, int n
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  int i;
-  for (i = num - 1; i >= 0; i--) {
-    print_user_name (ev, UL[i]->id, (void *)UL[i]);
-    mprintf (ev, "\n");
+  if (!enable_json) {
+    int i;
+    for (i = num - 1; i >= 0; i--) {
+      print_user_name (ev, UL[i]->id, (void *)UL[i]);
+      mprintf (ev, "\n");
+    }
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_array ();
+      int i;
+      for (i = num - 1; i >= 0; i--) {
+        json_t *a = json_pack_peer (UL[i]->id, (void *)UL[i]);
+        assert (json_array_append (res, a) >= 0);
+      }
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
   }
   mprint_end (ev);
 }
@@ -1691,8 +1760,18 @@ void print_user_gw (struct tgl_state *TLSR, void *extra, int success, struct tgl
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  print_user_name (ev, U->id, (void *)U);
-  mprintf (ev, "\n");
+  if (!enable_json) {
+    print_user_name (ev, U->id, (void *)U);
+    mprintf (ev, "\n");
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_pack_peer (U->id, (void *)U);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
+  }
   mprint_end (ev);
 }
 
@@ -1705,7 +1784,18 @@ void print_filename_gw (struct tgl_state *TLSR, void *extra, int success, char *
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  mprintf (ev, "Saved to %s\n", name);
+  if (!enable_json) {
+    mprintf (ev, "Saved to %s\n", name);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_object ();
+      assert (json_object_set (res, "result", json_string (name)) >= 0);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
+  }
   mprint_end (ev);
 }
 
@@ -1718,7 +1808,19 @@ void print_string_gw (struct tgl_state *TLSR, void *extra, int success, const ch
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  mprintf (ev, "%s\n", name);
+  mprint_start (ev);
+  if (!enable_json) {
+    mprintf (ev, "%s\n", name);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_object ();
+      assert (json_object_set (res, "result", json_string (name)) >= 0);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
+  }
   mprint_end (ev);
 }
 
@@ -1752,30 +1854,42 @@ void print_chat_info_gw (struct tgl_state *TLSR, void *extra, int success, struc
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-
-  tgl_peer_t *U = (void *)C;
-  mpush_color (ev, COLOR_YELLOW);
-  mprintf (ev, "Chat ");
-  print_chat_name (ev, U->id, U);
-  mprintf (ev, " (id %d) members:\n", tgl_get_peer_id (U->id));
-  int i;
-  for (i = 0; i < C->user_list_size; i++) {
-    mprintf (ev, "\t\t");
-    print_user_name (ev, TGL_MK_USER (C->user_list[i].user_id), tgl_peer_get (TLS, TGL_MK_USER (C->user_list[i].user_id)));
-    mprintf (ev, " invited by ");
-    print_user_name (ev, TGL_MK_USER (C->user_list[i].inviter_id), tgl_peer_get (TLS, TGL_MK_USER (C->user_list[i].inviter_id)));
-    mprintf (ev, " at ");
-    print_date_full (ev, C->user_list[i].date);
-    if (C->user_list[i].user_id == C->admin_id) {
-      mprintf (ev, " admin");
+  
+  if (!enable_json) {
+    tgl_peer_t *U = (void *)C;
+    mpush_color (ev, COLOR_YELLOW);
+    mprintf (ev, "Chat ");
+    print_chat_name (ev, U->id, U);
+    mprintf (ev, " (id %d) members:\n", tgl_get_peer_id (U->id));
+    int i;
+    for (i = 0; i < C->user_list_size; i++) {
+      mprintf (ev, "\t\t");
+      print_user_name (ev, TGL_MK_USER (C->user_list[i].user_id), tgl_peer_get (TLS, TGL_MK_USER (C->user_list[i].user_id)));
+      mprintf (ev, " invited by ");
+      print_user_name (ev, TGL_MK_USER (C->user_list[i].inviter_id), tgl_peer_get (TLS, TGL_MK_USER (C->user_list[i].inviter_id)));
+      mprintf (ev, " at ");
+      print_date_full (ev, C->user_list[i].date);
+      if (C->user_list[i].user_id == C->admin_id) {
+        mprintf (ev, " admin");
+      }
+      mprintf (ev, "\n");
     }
-    mprintf (ev, "\n");
+    mpop_color (ev);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_pack_peer (C->id, (void *)C);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
   }
-  mpop_color (ev);
+
   mprint_end (ev);
 }
 
 void print_user_status (struct tgl_user_status *S, struct in_ev *ev) {
+  if (enable_json) { return; }
   if (S->online > 0) {
     mprintf (ev, "online (was online ");
     print_date_full (ev, S->when);
@@ -1805,21 +1919,31 @@ void print_user_info_gw (struct tgl_state *TLSR, void *extra, int success, struc
     return;
   }
   if (!success) { print_fail (ev); return; }
-  tgl_peer_t *C = (void *)U;
   mprint_start (ev);
-  mpush_color (ev, COLOR_YELLOW);
-  mprintf (ev, "User ");
-  print_user_name (ev, U->id, C);
-  if (U->username) {
-    mprintf (ev, " @%s", U->username);
+  tgl_peer_t *C = (void *)U;
+  if (!enable_json) {
+    mpush_color (ev, COLOR_YELLOW);
+    mprintf (ev, "User ");
+    print_user_name (ev, U->id, C);
+    if (U->username) {
+      mprintf (ev, " @%s", U->username);
+    }
+    mprintf (ev, " (#%d):\n", tgl_get_peer_id (U->id));
+    mprintf (ev, "\treal name: %s %s\n", U->real_first_name, U->real_last_name);
+    mprintf (ev, "\tphone: %s\n", U->phone);
+    mprintf (ev, "\t");
+    print_user_status (&U->status, ev);
+    mprintf (ev, "\n");
+    mpop_color (ev);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_pack_peer (U->id, (void *)U);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
   }
-  mprintf (ev, " (#%d):\n", tgl_get_peer_id (U->id));
-  mprintf (ev, "\treal name: %s %s\n", U->real_first_name, U->real_last_name);
-  mprintf (ev, "\tphone: %s\n", U->phone);
-  mprintf (ev, "\t");
-  print_user_status (&U->status, ev);
-  mprintf (ev, "\n");
-  mpop_color (ev);
   mprint_end (ev);
 }
 
@@ -1832,11 +1956,21 @@ void print_secret_chat_gw (struct tgl_state *TLSR, void *extra, int success, str
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  mpush_color (ev, COLOR_YELLOW);
-  mprintf (ev, " Encrypted chat ");
-  print_encr_chat_name (ev, E->id, (void *)E);
-  mprintf (ev, " is now in wait state\n");
-  mpop_color (ev);
+  if (!enable_json) {
+    mpush_color (ev, COLOR_YELLOW);
+    mprintf (ev, " Encrypted chat ");
+    print_encr_chat_name (ev, E->id, (void *)E);
+    mprintf (ev, " is now in wait state\n");
+    mpop_color (ev);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_pack_peer (E->id, (void *)E);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
+  }
   mprint_end (ev);
 }
 
@@ -1849,26 +1983,41 @@ void print_dialog_list_gw (struct tgl_state *TLSR, void *extra, int success, int
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  mpush_color (ev, COLOR_YELLOW);
-  int i;
-  for (i = size - 1; i >= 0; i--) {
-    tgl_peer_t *UC;
-    switch (tgl_get_peer_type (peers[i])) {
-    case TGL_PEER_USER:
-      UC = tgl_peer_get (TLS, peers[i]);
-      mprintf (ev, "User ");
-      print_user_name (ev, peers[i], UC);
-      mprintf (ev, ": %d unread\n", unread_count[i]);
-      break;
-    case TGL_PEER_CHAT:
-      UC = tgl_peer_get (TLS, peers[i]);
-      mprintf (ev, "Chat ");
-      print_chat_name (ev, peers[i], UC);
-      mprintf (ev, ": %d unread\n", unread_count[i]);
-      break;
+  if (!enable_json)  {
+    mpush_color (ev, COLOR_YELLOW);
+    int i;
+    for (i = size - 1; i >= 0; i--) {
+      tgl_peer_t *UC;
+      switch (tgl_get_peer_type (peers[i])) {
+        case TGL_PEER_USER:
+          UC = tgl_peer_get (TLS, peers[i]);
+          mprintf (ev, "User ");
+          print_user_name (ev, peers[i], UC);
+          mprintf (ev, ": %d unread\n", unread_count[i]);
+          break;
+        case TGL_PEER_CHAT:
+          UC = tgl_peer_get (TLS, peers[i]);
+          mprintf (ev, "Chat ");
+          print_chat_name (ev, peers[i], UC);
+          mprintf (ev, ": %d unread\n", unread_count[i]);
+          break;
+      }
     }
+    mpop_color (ev);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_array ();
+      int i;
+      for (i = size - 1; i >= 0; i--) {
+        json_t *a = json_pack_peer (peers[i], tgl_peer_get (TLS, peers[i]));
+        assert (json_array_append (res, a) >= 0);
+      }
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
   }
-  mpop_color (ev);
   mprint_end (ev);
 }
 
@@ -2029,6 +2178,7 @@ void print_typing (struct in_ev *ev, enum tgl_typing_status status) {
 void type_notification_upd (struct tgl_state *TLSR, struct tgl_user *U, enum tgl_typing_status status) {
   assert (TLSR == TLS);
   if (log_level < 2 || (disable_output && !notify_ev)) { return; }
+  if (enable_json) { return; }
   struct in_ev *ev = notify_ev;
   mprint_start (ev);
   mpush_color (ev, COLOR_YELLOW);
@@ -2044,6 +2194,7 @@ void type_notification_upd (struct tgl_state *TLSR, struct tgl_user *U, enum tgl
 void type_in_chat_notification_upd (struct tgl_state *TLSR, struct tgl_user *U, struct tgl_chat *C, enum tgl_typing_status status) {
   assert (TLSR == TLS);
   if (log_level < 2 || (disable_output && !notify_ev)) { return; }
+  if (enable_json) { return; }
   struct in_ev *ev = notify_ev;
   mprint_start (ev);
   mpush_color (ev, COLOR_YELLOW);
@@ -2074,7 +2225,17 @@ void print_message_gw (struct tgl_state *TLSR, struct tgl_message *M) {
   if (disable_output && !notify_ev) { return; }
   struct in_ev *ev = notify_ev;
   mprint_start (ev);
-  print_message (ev, M);
+  if (!enable_json) {
+    print_message (ev, M);
+  } else {
+    #ifdef USE_JSON
+      json_t *res = json_pack_message (M);
+      char *s = json_dumps (res, 0);
+      mprintf (ev, "%s\n", s);
+      json_decref (res);
+      free (s);
+    #endif
+  }
   mprint_end (ev);
 }
 
@@ -2130,6 +2291,18 @@ void print_peer_updates (struct in_ev *ev, int flags) {
   }
 }
 
+void json_peer_update (struct in_ev *ev, tgl_peer_t *P, unsigned flags) {
+  #ifdef USE_JSON
+    json_t *res = json_object ();
+    assert (json_object_set (res, "peer", json_pack_peer (P->id, P)) >= 0);
+    assert (json_object_set (res, "updates", json_pack_updates (flags)) >= 0);
+    char *s = json_dumps (res, 0);
+    mprintf (ev, "%s\n", s);
+    json_decref (res);
+    free (s);
+  #endif
+}
+
 void user_update_gw (struct tgl_state *TLSR, struct tgl_user *U, unsigned flags) {
   assert (TLSR == TLS);
   #ifdef USE_LUA
@@ -2142,17 +2315,21 @@ void user_update_gw (struct tgl_state *TLSR, struct tgl_user *U, unsigned flags)
 
   if (!(flags & TGL_UPDATE_CREATED)) {
     mprint_start (ev);
-    mpush_color (ev, COLOR_YELLOW);
-    mprintf (ev, "User ");
-    print_user_name (ev, U->id, (void *)U);
-    if (!(flags & TGL_UPDATE_DELETED)) {
-      mprintf (ev, " updated");
-      print_peer_updates (ev, flags);
+    if (!enable_json) {
+      mpush_color (ev, COLOR_YELLOW);
+      mprintf (ev, "User ");
+      print_user_name (ev, U->id, (void *)U);
+      if (!(flags & TGL_UPDATE_DELETED)) {
+        mprintf (ev, " updated");
+        print_peer_updates (ev, flags);
+      } else {
+        mprintf (ev, " deleted");
+      }
+      mprintf (ev, "\n");
+      mpop_color (ev);
     } else {
-      mprintf (ev, " deleted");
+      json_peer_update (ev, (void *)U, flags);
     }
-    mprintf (ev, "\n");
-    mpop_color (ev);
     mprint_end (ev);
   }
 }
@@ -2169,17 +2346,21 @@ void chat_update_gw (struct tgl_state *TLSR, struct tgl_chat *U, unsigned flags)
 
   if (!(flags & TGL_UPDATE_CREATED)) {
     mprint_start (ev);
-    mpush_color (ev, COLOR_YELLOW);
-    mprintf (ev, "Chat ");
-    print_chat_name (ev, U->id, (void *)U);
-    if (!(flags & TGL_UPDATE_DELETED)) {
-      mprintf (ev, " updated");
-      print_peer_updates (ev, flags);
+    if (!enable_json) {
+      mpush_color (ev, COLOR_YELLOW);
+      mprintf (ev, "Chat ");
+      print_chat_name (ev, U->id, (void *)U);
+      if (!(flags & TGL_UPDATE_DELETED)) {
+        mprintf (ev, " updated");
+        print_peer_updates (ev, flags);
+      } else {
+        mprintf (ev, " deleted");
+      }
+      mprintf (ev, "\n");
+      mpop_color (ev);
     } else {
-      mprintf (ev, " deleted");
+      json_peer_update (ev, (void *)U, flags);
     }
-    mprintf (ev, "\n");
-    mpop_color (ev);
     mprint_end (ev);
   }
 }
@@ -2207,17 +2388,21 @@ void secret_chat_update_gw (struct tgl_state *TLSR, struct tgl_secret_chat *U, u
 
   if (!(flags & TGL_UPDATE_CREATED)) {
     mprint_start (ev);
-    mpush_color (ev, COLOR_YELLOW);
-    mprintf (ev, "Secret chat ");
-    print_encr_chat_name (ev, U->id, (void *)U);
-    if (!(flags & TGL_UPDATE_DELETED)) {
-      mprintf (ev, " updated");
-      print_peer_updates (ev, flags);
+    if (!enable_json) {
+      mpush_color (ev, COLOR_YELLOW);
+      mprintf (ev, "Secret chat ");
+      print_encr_chat_name (ev, U->id, (void *)U);
+      if (!(flags & TGL_UPDATE_DELETED)) {
+        mprintf (ev, " updated");
+        print_peer_updates (ev, flags);
+      } else {
+        mprintf (ev, " deleted");
+      }
+      mprintf (ev, "\n");
+      mpop_color (ev);
     } else {
-      mprintf (ev, " deleted");
+      json_peer_update (ev, (void *)U, flags);
     }
-    mprintf (ev, "\n");
-    mpop_color (ev);
     mprint_end (ev);
   }
 }
@@ -2231,10 +2416,27 @@ void print_card_gw (struct tgl_state *TLSR, void *extra, int success, int size,
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  mprintf (ev, "Card: ");
-  int i;
-  for (i = 0; i < size; i++) {
-    mprintf (ev, "%08x%c", card[i], i == size - 1 ? '\n' : ':');
+  if (!enable_json) {
+    mprintf (ev, "Card: ");
+    int i;
+    for (i = 0; i < size; i++) {
+      mprintf (ev, "%08x%c", card[i], i == size - 1 ? '\n' : ':');
+    }
+  } else {
+    #ifdef USE_JSON
+    static char q[1000];
+    int pos = 0;
+    int i;
+    for (i = 0; i < size; i++) {
+      pos += sprintf (q + pos, "%08x%s", card[i], i == size - 1 ? "" : ":");
+    }
+    json_t *res = json_object ();
+    assert (json_object_set (res, "result", json_string (q)) >= 0);
+    char *s = json_dumps (res, 0);
+    mprintf (ev, "%s\n", s);
+    json_decref (res);
+    free (s);
+    #endif
   }
   mprint_end (ev);
 }
@@ -2247,7 +2449,18 @@ void callback_extf (struct tgl_state *TLS, void *extra, int success, char *buf)
   }
   if (!success) { print_fail (ev); return; }
   mprint_start (ev);
-  mprintf (ev, "%s\n", buf);
+  if (!enable_json) {
+    mprintf (ev, "%s\n", buf);
+  } else {
+    #ifdef USE_JSON
+    json_t *res = json_object ();
+    assert (json_object_set (res, "result", json_string (buf)) >= 0);
+    char *s = json_dumps (res, 0);
+    mprintf (ev, "%s\n", s);
+    json_decref (res);
+    free (s);
+    #endif
+  }
   mprint_end (ev);
 }
 
@@ -2255,6 +2468,7 @@ void user_status_upd (struct tgl_state *TLS, struct tgl_user *U) {
   if (disable_output && !notify_ev) { return; }
   if (!binlog_read) { return; }
   if (log_level < 3) { return; }
+  if (enable_json) { return; }
   struct in_ev *ev = notify_ev;
   mprint_start (ev);
   mpush_color (ev, COLOR_YELLOW);
diff --git a/json-tg.c b/json-tg.c
new file mode 100644
index 0000000..87e4c76
--- /dev/null
+++ b/json-tg.c
@@ -0,0 +1,369 @@
+#include "config.h"
+#ifdef USE_JSON
+
+#include <jansson.h>
+#include "json-tg.h"
+#include <tgl.h>
+#include <tgl-layout.h>
+#include <assert.h>
+
+extern struct tgl_state *TLS;
+
+void json_pack_peer_type (json_t *res, tgl_peer_id_t id) {
+  int x = tgl_get_peer_type (id);
+  switch (x) {
+  case TGL_PEER_USER:
+    assert (json_object_set (res, "type", json_string ("user")) >= 0);
+    break;
+  case TGL_PEER_CHAT:
+    assert (json_object_set (res, "type", json_string ("chat")) >= 0);
+    break;
+  case TGL_PEER_ENCR_CHAT:
+    assert (json_object_set (res, "type", json_string ("encr_chat")) >= 0);
+    break;
+  default:
+    assert (0);
+  }
+}
+
+
+void json_pack_user (json_t *res, tgl_peer_t *P) {
+  if (P->user.first_name) {
+    assert (json_object_set (res, "first_name", json_string (P->user.first_name)) >= 0);
+  }
+  if (P->user.last_name) {
+    assert (json_object_set (res, "last_name", json_string (P->user.last_name)) >= 0);
+  }
+  if (P->user.real_first_name) {
+    assert (json_object_set (res, "real_first_name", json_string (P->user.real_first_name)) >= 0);
+  }
+  if (P->user.real_last_name) {
+    assert (json_object_set (res, "real_last_name", json_string (P->user.real_last_name)) >= 0);
+  }
+  if (P->user.phone) {
+    assert (json_object_set (res, "phone", json_string (P->user.phone)) >= 0);
+  }
+  if (P->user.username) {
+    assert (json_object_set (res, "username", json_string (P->user.username)) >= 0);
+  }
+}
+
+void json_pack_chat (json_t *res, tgl_peer_t *P) {
+  assert (P->chat.title);
+  assert (json_object_set (res, "title", json_string (P->chat.title)) >= 0);
+  assert (json_object_set (res, "members_num", json_integer (P->chat.users_num)) >= 0);
+
+  if (P->chat.user_list) {
+    json_t *m = json_array ();
+    assert (m);
+
+    int i;
+    for (i = 0; i < P->chat.users_num; i++) {
+      tgl_peer_id_t id = TGL_MK_USER (P->chat.user_list[i].user_id);
+      assert (json_array_append (m, json_pack_peer (id, tgl_peer_get (TLS, id))) >= 0);
+    }
+
+    assert (json_object_set (res, "members", m) >= 0);
+  }
+}
+
+
+void json_pack_encr_chat (json_t *res, tgl_peer_t *P) {
+  assert (json_object_set (res, "user", json_pack_peer (TGL_MK_USER (P->encr_chat.user_id), tgl_peer_get (TLS, TGL_MK_USER (P->encr_chat.user_id)))) >= 0);
+}
+
+json_t *json_pack_peer (tgl_peer_id_t id, tgl_peer_t *P) {
+  json_t *res = json_object ();
+  assert (json_object_set (res, "id", json_integer (tgl_get_peer_id (id))) >= 0);
+
+  json_pack_peer_type (res, id);
+
+  assert (res);
+    
+  if (!P || !(P->flags & TGLPF_CREATED)) {
+    static char s[100];
+    switch (tgl_get_peer_type (id)) {
+    case TGL_PEER_USER:
+      sprintf (s, "user#%d", tgl_get_peer_id (id));
+      break;
+    case TGL_PEER_CHAT:
+      sprintf (s, "chat#%d", tgl_get_peer_id (id));
+      break;
+    case TGL_PEER_ENCR_CHAT:
+      sprintf (s, "encr_chat#%d", tgl_get_peer_id (id));
+      break;
+    default:
+      assert (0);
+    }
+
+    assert (json_object_set (res, "print_name", json_string (s)) >= 0);
+    return res;
+  }
+  
+  assert (json_object_set (res, "print_name", json_string (P->print_name)) >= 0);
+  assert (json_object_set (res, "flags", json_integer (P->flags)) >= 0);
+  
+  switch (tgl_get_peer_type (id)) {
+  case TGL_PEER_USER:
+    json_pack_user (res, P);
+    break;
+  case TGL_PEER_CHAT:
+    json_pack_chat (res, P);
+    break;
+  case TGL_PEER_ENCR_CHAT:
+    json_pack_encr_chat (res, P);
+    break;
+  default:
+    assert (0);
+  }
+  return res;
+}
+
+json_t *json_pack_updates (unsigned flags) {
+  json_t *a = json_array ();
+  
+  if (flags & TGL_UPDATE_CREATED) {
+    assert (json_array_append (a, json_string ("created")) >= 0);
+  }  
+  if (flags & TGL_UPDATE_DELETED) {
+    assert (json_array_append (a, json_string ("deleted")) >= 0);
+  }  
+  if (flags & TGL_UPDATE_PHONE) {
+    assert (json_array_append (a, json_string ("phone")) >= 0);
+  }
+  if (flags & TGL_UPDATE_CONTACT) {
+    assert (json_array_append (a, json_string ("contact")) >= 0);
+  }
+  if (flags & TGL_UPDATE_PHOTO) {
+    assert (json_array_append (a, json_string ("photo")) >= 0);
+  }
+  if (flags & TGL_UPDATE_BLOCKED) {
+    assert (json_array_append (a, json_string ("blocked")) >= 0);
+  }
+  if (flags & TGL_UPDATE_REAL_NAME) {
+    assert (json_array_append (a, json_string ("real_name")) >= 0);
+  }
+  if (flags & TGL_UPDATE_NAME) {
+    assert (json_array_append (a, json_string ("name")) >= 0);
+  }
+  if (flags & TGL_UPDATE_REQUESTED) {
+    assert (json_array_append (a, json_string ("requested")) >= 0);
+  }
+  if (flags & TGL_UPDATE_WORKING) {
+    assert (json_array_append (a, json_string ("working")) >= 0);
+  }
+  if (flags & TGL_UPDATE_FLAGS) {
+    assert (json_array_append (a, json_string ("flags")) >= 0);
+  }
+  if (flags & TGL_UPDATE_TITLE) {
+    assert (json_array_append (a, json_string ("title")) >= 0);
+  }
+  if (flags & TGL_UPDATE_ADMIN) {
+    assert (json_array_append (a, json_string ("admin")) >= 0);
+  }
+  if (flags & TGL_UPDATE_MEMBERS) {
+    assert (json_array_append (a, json_string ("members")) >= 0);
+  }
+  if (flags & TGL_UPDATE_USERNAME) {
+    assert (json_array_append (a, json_string ("username")) >= 0);
+  }
+
+  return a;
+}
+
+
+json_t *json_pack_media (struct tgl_message_media *M) {
+  json_t *res = json_object ();
+
+  switch (M->type) {
+  case tgl_message_media_photo:
+    assert (json_object_set (res, "type", json_string ("photo")) >= 0);
+    if (M->caption) {
+      assert (json_object_set (res, "caption", json_string (M->caption)) >= 0);
+    }
+    break;
+  case tgl_message_media_document:
+  case tgl_message_media_document_encr:
+    assert (json_object_set (res, "type", json_string ("document")) >= 0);
+    break;
+  case tgl_message_media_unsupported:
+    assert (json_object_set (res, "type", json_string ("unsupported")) >= 0);
+    break;
+  case tgl_message_media_geo:
+    assert (json_object_set (res, "type", json_string ("geo")) >= 0);
+    assert (json_object_set (res, "longitude", json_real (M->geo.longitude)) >= 0);
+    assert (json_object_set (res, "latitude", json_real (M->geo.latitude)) >= 0);
+    break;
+  case tgl_message_media_contact:
+    assert (json_object_set (res, "type", json_string ("contact")) >= 0);
+    assert (json_object_set (res, "phone", json_string (M->phone)) >= 0);
+    assert (json_object_set (res, "first_name", json_string (M->first_name)) >= 0);
+    assert (json_object_set (res, "last_name", json_string (M->last_name)) >= 0);
+    assert (json_object_set (res, "user_id", json_integer (M->user_id)) >= 0);
+    break;
+  case tgl_message_media_webpage:
+    assert (json_object_set (res, "type", json_string ("webpage")) >= 0);
+    if (M->webpage->url) {
+      assert (json_object_set (res, "url", json_string (M->webpage->url)) >= 0);
+    }
+    if (M->webpage->title) {
+      assert (json_object_set (res, "title", json_string (M->webpage->title)) >= 0);
+    }
+    if (M->webpage->description) {
+      assert (json_object_set (res, "description", json_string (M->webpage->description)) >= 0);
+    }
+    if (M->webpage->author) {
+      assert (json_object_set (res, "author", json_string (M->webpage->author)) >= 0);
+    }
+    break;
+  case tgl_message_media_venue:
+    assert (json_object_set (res, "type", json_string ("venue")) >= 0);
+    assert (json_object_set (res, "longitude", json_real (M->venue.geo.longitude)) >= 0);
+    assert (json_object_set (res, "latitude", json_real (M->venue.geo.latitude)) >= 0);
+    if (M->venue.title) {
+      assert (json_object_set (res, "type", json_string (M->venue.title)) >= 0);
+    }
+    if (M->venue.address) {
+      assert (json_object_set (res, "address", json_string (M->venue.address)) >= 0);
+    }
+    if (M->venue.provider) {
+      assert (json_object_set (res, "provider", json_string (M->venue.provider)) >= 0);
+    }
+    if (M->venue.venue_id) {
+      assert (json_object_set (res, "venue_id", json_string (M->venue.venue_id)) >= 0);
+    }
+    break;
+  default:
+    assert (json_object_set (res, "type", json_string ("???")) >= 0);
+  }
+  return res;
+}
+
+json_t *json_pack_service (struct tgl_message *M) {
+  json_t *res = json_object ();
+  switch (M->action.type) {
+  case tgl_message_action_geo_chat_create:
+    assert (json_object_set (res, "type", json_string ("geo_created")) >= 0);
+    break;
+  case tgl_message_action_geo_chat_checkin:
+    assert (json_object_set (res, "type", json_string ("geo_checkin")) >= 0);
+    break;
+  case tgl_message_action_chat_create:
+    assert (json_object_set (res, "type", json_string ("chat_created")) >= 0);
+    assert (json_object_set (res, "title", json_string (M->action.title)) >= 0);
+    break;
+  case tgl_message_action_chat_edit_title:
+    assert (json_object_set (res, "type", json_string ("chat_rename")) >= 0);
+    assert (json_object_set (res, "title", json_string (M->action.title)) >= 0);
+    break;
+  case tgl_message_action_chat_edit_photo:
+    assert (json_object_set (res, "type", json_string ("chat_change_photo")) >= 0);
+    break;
+  case tgl_message_action_chat_delete_photo:
+    assert (json_object_set (res, "type", json_string ("chat_delete_photo")) >= 0);
+    break;
+  case tgl_message_action_chat_add_user:
+    assert (json_object_set (res, "type", json_string ("chat_add_user")) >= 0);
+    assert (json_object_set (res, "user", json_pack_peer (tgl_set_peer_id (TGL_PEER_USER, M->action.user), tgl_peer_get (TLS, tgl_set_peer_id (TGL_PEER_USER, M->action.user)))) >= 0);
+    break;
+  case tgl_message_action_chat_add_user_by_link:
+    assert (json_object_set (res, "type", json_string ("chat_add_user_link")) >= 0);
+    assert (json_object_set (res, "user", json_pack_peer (tgl_set_peer_id (TGL_PEER_USER, M->action.user), tgl_peer_get (TLS, tgl_set_peer_id (TGL_PEER_USER, M->action.user)))) >= 0);
+    break;
+  case tgl_message_action_chat_delete_user:
+    assert (json_object_set (res, "type", json_string ("chat_del_user")) >= 0);
+    assert (json_object_set (res, "user", json_pack_peer (tgl_set_peer_id (TGL_PEER_USER, M->action.user), tgl_peer_get (TLS, tgl_set_peer_id (TGL_PEER_USER, M->action.user)))) >= 0);
+    break;
+  case tgl_message_action_set_message_ttl:
+    assert (json_object_set (res, "type", json_string ("set_ttl")) >= 0);
+    assert (json_object_set (res, "ttl", json_integer (M->action.ttl)) >= 0);
+    break;
+  case tgl_message_action_read_messages:
+    assert (json_object_set (res, "type", json_string ("read")) >= 0);
+    assert (json_object_set (res, "count", json_integer (M->action.read_cnt)) >= 0);
+    break;
+  case tgl_message_action_delete_messages:
+    assert (json_object_set (res, "type", json_string ("delete")) >= 0);
+    assert (json_object_set (res, "count", json_integer (M->action.delete_cnt)) >= 0);
+    break;
+  case tgl_message_action_screenshot_messages:
+    assert (json_object_set (res, "type", json_string ("screenshot")) >= 0);
+    assert (json_object_set (res, "count", json_integer (M->action.screenshot_cnt)) >= 0);
+    break;
+  case tgl_message_action_flush_history:
+    assert (json_object_set (res, "type", json_string ("flush")) >= 0);
+    break;
+  case tgl_message_action_resend:
+    assert (json_object_set (res, "type", json_string ("resend")) >= 0);
+    break;
+  case tgl_message_action_notify_layer:
+    assert (json_object_set (res, "type", json_string ("notify_layer")) >= 0);
+    assert (json_object_set (res, "layer", json_integer (M->action.layer)) >= 0);
+    break;
+  case tgl_message_action_typing:    
+    assert (json_object_set (res, "type", json_string ("typing")) >= 0);
+    break;
+  case tgl_message_action_noop:
+    assert (json_object_set (res, "type", json_string ("noop")) >= 0);
+    break;
+  case tgl_message_action_request_key:
+    assert (json_object_set (res, "type", json_string ("request_key")) >= 0);
+    break;
+  case tgl_message_action_accept_key:
+    assert (json_object_set (res, "type", json_string ("accept_key")) >= 0);
+    break;
+  case tgl_message_action_commit_key:
+    assert (json_object_set (res, "type", json_string ("commit_key")) >= 0);
+    break;
+  case tgl_message_action_abort_key:
+    assert (json_object_set (res, "type", json_string ("abort_key")) >= 0);
+    break;
+  default:
+    assert (json_object_set (res, "type", json_string ("???")) >= 0);
+    break;
+  }
+  return res;
+}
+
+json_t *json_pack_message (struct tgl_message *M) {  
+  json_t *res = json_object ();
+
+  assert (json_object_set (res, "id", json_integer (M->id)) >= 0);
+  if (!(M->flags & TGLMF_CREATED)) { return res; }
+
+  assert (json_object_set (res, "id", json_integer (M->flags)) >= 0);
+ 
+  if (tgl_get_peer_type (M->fwd_from_id)) {
+    assert (json_object_set (res, "fwd_from", json_pack_peer (M->fwd_from_id, tgl_peer_get (TLS, M->fwd_from_id))) >= 0);
+    assert (json_object_set (res, "fwd_date", json_integer (M->fwd_date)) >= 0);
+  }
+
+  if (M->reply_id) {
+    assert (json_object_set (res, "reply_id", json_integer (M->reply_id)) >= 0);
+  }
+
+  if (M->flags & TGLMF_MENTION) {
+    assert (json_object_set (res, "mention", json_true ()) >= 0);
+  }
+ 
+  assert (json_object_set (res, "from", json_pack_peer (M->from_id, tgl_peer_get (TLS, M->from_id))) >= 0);
+  assert (json_object_set (res, "to", json_pack_peer (M->to_id, tgl_peer_get (TLS, M->to_id))) >= 0);
+  
+  assert (json_object_set (res, "out", json_boolean (M->flags & TGLMF_OUT)) >= 0);
+  assert (json_object_set (res, "unread", json_boolean (M->flags & TGLMF_UNREAD)) >= 0);
+  assert (json_object_set (res, "service", json_boolean (M->flags & TGLMF_SERVICE)) >= 0);
+  assert (json_object_set (res, "date", json_integer (M->date)) >= 0);
+  
+  if (!(M->flags & TGLMF_SERVICE)) {  
+    if (M->message_len && M->message) {
+      assert (json_object_set (res, "text", json_string (M->message)) >= 0);
+    }
+    if (M->media.type && M->media.type != tgl_message_media_none) {
+      assert (json_object_set (res, "media", json_pack_media (&M->media)) >= 0);
+    }
+  } else {
+    assert (json_object_set (res, "action", json_pack_service (M)) >= 0);
+  }
+  return res;
+}
+#endif
diff --git a/json-tg.h b/json-tg.h
new file mode 100644
index 0000000..a692109
--- /dev/null
+++ b/json-tg.h
@@ -0,0 +1,12 @@
+#ifndef __JSON_TG_H__
+#define __JSON_TG_H__
+#include "config.h"
+#ifdef USE_JSON
+#include <jansson.h>
+#include <tgl.h>
+#include <tgl-layout.h>
+json_t *json_pack_message (struct tgl_message *M);
+json_t *json_pack_updates (unsigned flags);
+json_t *json_pack_peer (tgl_peer_id_t id, tgl_peer_t *P);
+#endif
+#endif
diff --git a/main.c b/main.c
index a94f8b2..888eece 100644
--- a/main.c
+++ b/main.c
@@ -120,6 +120,7 @@ int use_ids;
 int ipv6_enabled;
 char *start_command;
 int disable_link_preview;
+int enable_json;
 
 struct tgl_state *TLS;
 
@@ -480,7 +481,9 @@ void usage (void) {
   printf ("  --help/-h                            prints this help\n");
   printf ("  --accept-any-tcp                     accepts tcp connections from any src (only loopback by default)\n");
   printf ("  --disable-link-preview               disables server-side previews to links\n");
-
+  #ifdef USE_JSON
+  printf ("  --json                               prints answers and values in json format\n");
+  #endif
   exit (1);
 }
 
@@ -625,6 +628,7 @@ void args_parse (int argc, char **argv) {
     {"help", no_argument, 0, 'h'},
     {"accept-any-tcp", no_argument, 0,  1001},
     {"disable-link-preview", no_argument, 0, 1002},
+    {"json", no_argument, 0, 1003},
     {0,         0,                 0,  0 }
   };
 
@@ -738,6 +742,9 @@ void args_parse (int argc, char **argv) {
     case 1002:
       disable_link_preview = 2;
       break;
+    case 1003:
+      enable_json = 1;
+      break;
     case 'h':
     default:
       usage ();