diff --git a/src/tox-weechat-json.c b/src/tox-weechat-json.c
new file mode 100644
index 0000000..d66f8a9
--- /dev/null
+++ b/src/tox-weechat-json.c
@@ -0,0 +1,94 @@
+#include <weechat/weechat-plugin.h>
+#include <tox/tox.h>
+#include <jansson.h>
+
+#include "tox-weechat.h"
+#include "tox-weechat-identities.h"
+#include "tox-weechat-utils.h"
+
+#include "tox-weechat-json.h"
+
+#define TOX_WEECHAT_JSON_CONFIG_PATH "%h/tox/data.json"
+
+json_t *tox_weechat_json_config = NULL;
+
+const char *tox_weechat_json_key_friend_requests = "friend_requests";
+const char *tox_weechat_json_friend_request_key_client_id = "client_id";
+const char *tox_weechat_json_friend_request_key_message = "message";
+
+char *
+tox_weechat_json_config_file_path()
+{
+    const char *weechat_dir = weechat_info_get("weechat_dir", NULL);
+    return weechat_string_replace(TOX_WEECHAT_JSON_CONFIG_PATH, "%h", weechat_dir);
+}
+
+void
+tox_weechat_json_init()
+{
+    char *full_path = tox_weechat_json_config_file_path();
+
+    json_error_t error;
+    tox_weechat_json_config = json_load_file(full_path,
+                                             0,
+                                             &error);
+    free(full_path);
+
+    if (!tox_weechat_json_config)
+    {
+        // TODO: read error
+        tox_weechat_json_config = json_object();
+    }
+}
+
+int
+tox_weechat_json_save()
+{
+    char *full_path = tox_weechat_json_config_file_path();
+
+    int rc = json_dump_file(tox_weechat_json_config,
+                            full_path,
+                            0);
+    free(full_path);
+
+    return rc;
+}
+
+json_t *
+tox_weechat_json_get_identity_object(struct t_tox_weechat_identity *identity)
+{
+    if (!(identity->tox)) return NULL;
+
+    uint8_t address[TOX_FRIEND_ADDRESS_SIZE];
+    char hex_id[TOX_CLIENT_ID_SIZE * 2 + 1];
+    tox_get_address(identity->tox, address);
+    tox_weechat_bin2hex(address, TOX_CLIENT_ID_SIZE, hex_id);
+
+    json_t *object = json_object_get(tox_weechat_json_config,
+                                     hex_id);
+
+    if (object == NULL)
+    {
+        object = json_object();
+        json_object_set(tox_weechat_json_config, hex_id, object);
+        json_decref(object);
+    }
+
+    return object;
+}
+
+int
+tox_weechat_json_set_identity_object(struct t_tox_weechat_identity *identity,
+                                     json_t *object)
+{
+    if (!(identity->tox)) return -1;
+
+    uint8_t address[TOX_FRIEND_ADDRESS_SIZE];
+    char hex_id[TOX_CLIENT_ID_SIZE * 2 + 1];
+    tox_get_address(identity->tox, address);
+    tox_weechat_bin2hex(address, TOX_CLIENT_ID_SIZE, hex_id);
+
+    return json_object_set(tox_weechat_json_config,
+                           hex_id, object);
+}
+
diff --git a/src/tox-weechat-json.h b/src/tox-weechat-json.h
new file mode 100644
index 0000000..24d0352
--- /dev/null
+++ b/src/tox-weechat-json.h
@@ -0,0 +1,27 @@
+#ifndef TOX_WEECHAT_JSON_H
+#define TOX_WEECHAT_JSON_H
+
+#include <jansson.h>
+
+#include "tox-weechat-identities.h"
+
+extern json_t *tox_weechat_json_config;
+
+extern const char *tox_weechat_json_key_friend_requests;
+extern const char *tox_weechat_json_friend_request_key_client_id;
+extern const char *tox_weechat_json_friend_request_key_message;
+
+void
+tox_weechat_json_init();
+
+int
+tox_weechat_json_save();
+
+json_t *
+tox_weechat_json_get_identity_object(struct t_tox_weechat_identity *identity);
+
+int
+tox_weechat_json_set_identity_object(struct t_tox_weechat_identity *identity,
+                                     json_t *object);
+
+#endif // TOX_WEECHAT_JSON_H