diff --git a/.vscode/settings.json b/.vscode/settings.json
index 082b194..f14a6a0 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,4 @@
 {
-    "makefile.configureOnOpen": false
+    "makefile.configureOnOpen": false,
+    "C_Cpp.errorSquiggles": "disabled"
 }
\ No newline at end of file
diff --git a/DOCS.md b/DOCS.md
index 49d2f08..33e0213 100644
--- a/DOCS.md
+++ b/DOCS.md
@@ -5,6 +5,7 @@
  - [Создание пользователя и шифрование](#создание-пользователя-и-шифрование)
  - [Чтение данных пользователя и расшифровка](#чтение-данных-пользователя-и-расшифровка)
  - [Опции команды](#опции-команды)
+ - [API](#api)
 ## Установка
 Зависимости для компиляции:
  - GCC
@@ -67,4 +68,17 @@ vipre-cryptor ИМЯ_ФАЙЛА_С_КЛЮЧОМ.sig --user-data ИМЯ_ПОЛЬ
 # Опции "--file-input" и "--file-out" можно сократить до "--file" или просто "-f"
 "--help" - "-h"
 "--version" - "-v"
+```
+## API
+У библиотеки есть **API**:
+```c
+/* Пример */
+#include "vipre-manager.h"
+
+int main(void) {
+    __set_api_mode("admin", "1234", "signature_key");
+    __create_sig("api_example_key.sig");
+    __create_user("api_example_key.sig", "api_example_user.bin", "example.txt");
+    __read_user("api_example_key.sig", "api_example_user.bin", "example_out.txt");
+}
 ```
\ No newline at end of file
diff --git a/api_example b/api_example
new file mode 100755
index 0000000..008cd2b
Binary files /dev/null and b/api_example differ
diff --git a/api_example.c b/api_example.c
new file mode 100644
index 0000000..7b0abe1
--- /dev/null
+++ b/api_example.c
@@ -0,0 +1,9 @@
+/* Пример API */
+#include "vipre-manager.h"
+
+int main(void) {
+    __set_api_mode("admin", "1234", "signature_key");
+    __create_sig("api_example_key.sig");
+    __create_user("api_example_key.sig", "api_example_user.bin", "example.txt");
+    __read_user("api_example_key.sig", "api_example_user.bin", "example_out.txt");
+}
diff --git a/api_example_key.sig b/api_example_key.sig
new file mode 100644
index 0000000..d1128f1
Binary files /dev/null and b/api_example_key.sig differ
diff --git a/api_example_user.bin b/api_example_user.bin
new file mode 100644
index 0000000..1bd6e91
Binary files /dev/null and b/api_example_user.bin differ
diff --git a/user.bin b/user.bin
index aaa94e7..1bd6e91 100644
Binary files a/user.bin and b/user.bin differ
diff --git a/vipre-cryptor b/vipre-cryptor
index ef420e6..0ff3976 100755
Binary files a/vipre-cryptor and b/vipre-cryptor differ
diff --git a/vipre-manager.h b/vipre-manager.h
index 5e5bb8e..7d77758 100644
--- a/vipre-manager.h
+++ b/vipre-manager.h
@@ -35,8 +35,22 @@
 #define true 1
 #define false 0
 
+char* __YEFWHD_api_login = NULL;
+char* __YEFWHD_api_password = NULL;
+char* __YEFWHD_api_datakey = NULL;
+char __YEFWHD_data_type = '\0';
+
+#define VIPRE_API_MODE 'A'
+
 typedef FILE* file_t;
 
+void __set_api_mode(char* login, char* password, char* data_key) {
+    __YEFWHD_api_login = login;
+    __YEFWHD_api_password = password;
+    __YEFWHD_api_datakey = data_key;
+    __YEFWHD_data_type = VIPRE_API_MODE;
+}
+
 void _put_vipre_help(void) {
     puts (
         "Vipre Console Cryptor V " VERSION                                            "\n"
@@ -122,10 +136,15 @@ int __create_sig(char* file) {
         str_dt ++;
     }
     char key[32] = "";
-    fputs("Signature key: ", stdout);
-    if (!scanf("%32[^\n]", key)) puts("\033[1mvipre-cryptor: \033[91mKey read error!\033[0m");
     file_t fp = fopen(file, "wb");
     if (fp == NULL) { _file_read_error(); free(arr); return EXIT_FAILURE; }
+    if (__YEFWHD_data_type != VIPRE_API_MODE) {
+        fputs("Signature key: ", stdout);
+        if (!scanf("%32[^\n]", key)) puts("\033[1mvipre-cryptor: \033[91mKey read error!\033[0m");
+    } else {
+        strncpy(key, __YEFWHD_api_datakey, 31);
+        key[31] = '\0';
+    }
     _str_srand(__generate_hash(key));
     unsigned short int pos = 0;
     while (true) {
@@ -148,6 +167,10 @@ int __create_sig(char* file) {
     return EXIT_SUCCESS;
 }
 
+static void __nl_del(char* user_login) {
+    if (user_login[strlen(user_login) -  1] == '\n') user_login[strlen(user_login) -  1] = '\0';
+}
+
 int __create_user(char* file, char* user_file, char* cry_file) {
     file_t fp = fopen(file, "rb");
     file_t wp = fopen(user_file, "wb");
@@ -162,35 +185,42 @@ int __create_user(char* file, char* user_file, char* cry_file) {
     }
     char user_login[32];
     char password[32];
-    fputs("Login: ", stdout);
     int c;
-    size_t cnt = 0;
-    while((c=getchar())!=EOF && cnt < 31 && c != '\n') {
-        user_login[cnt] = c;
-        cnt ++;
-    }
-    fputs("Password: ", stdout);
-    cnt = 0;
-    while((c=getchar())!=EOF && cnt < 31 && c != '\n') {
-        password[cnt] = c;
-        cnt ++;
-    }
-    size_t cnt_save = cnt;
-    password[cnt] = '\0';
-    fputs("Repeat password: ", stdout);
-    cnt = 0;
-    while((c=getchar())!=EOF && cnt < 31 && c != '\n') {
-        if (password[cnt] != c) {
+    if (__YEFWHD_data_type != VIPRE_API_MODE) {
+        fputs("Login: ", stdout);
+        size_t cnt = 0;
+        while((c=getchar())!=EOF && cnt < 31 && c != '\n') {
+            user_login[cnt] = c;
+            cnt ++;
+        }
+        fputs("Password: ", stdout);
+        cnt = 0;
+        while((c=getchar())!=EOF && cnt < 31 && c != '\n') {
+            password[cnt] = c;
+            cnt ++;
+        }
+        size_t cnt_save = cnt;
+        password[cnt] = '\0';
+        fputs("Repeat password: ", stdout);
+        cnt = 0;
+        while((c=getchar())!=EOF && cnt < 31 && c != '\n') {
+            if (password[cnt] != c) {
+                puts("\033[1mvipre-cryptor: \033[91mThe password was repeated incorrectly!\033[0m");
+                free(arr);
+                return EXIT_FAILURE;
+            }
+            cnt ++;
+        }
+        if (cnt != cnt_save) {            
             puts("\033[1mvipre-cryptor: \033[91mThe password was repeated incorrectly!\033[0m");
             free(arr);
             return EXIT_FAILURE;
         }
-        cnt ++;
-    }
-    if (cnt != cnt_save) {            
-        puts("\033[1mvipre-cryptor: \033[91mThe password was repeated incorrectly!\033[0m");
-        free(arr);
-        return EXIT_FAILURE;
+    } else {
+        strncpy(user_login, __YEFWHD_api_login, 31);
+        strncpy(password, __YEFWHD_api_password, 31);
+        user_login[31] = '\0';
+        password[31] = '\0';
     }
     fputs(user_login, wp); putc('\n', wp);
     fputs(password, wp); putc('\n', wp);
@@ -228,14 +258,25 @@ int __read_user(char* file, char* user_file, char* cry_file) {
     char correct_login[32];
     char password[32];
     char correct_password[32];
-    fputs("Login: ", stdout);
     char* res;
-    res = fgets(user_login, 32, stdin);
     res = fgets(correct_login, 32, up);
-    fputs("Password: ", stdout);
-    res = fgets(password, 32, stdin);
     res = fgets(correct_password, 32, up);
+    if (__YEFWHD_data_type != VIPRE_API_MODE) {
+        fputs("Login: ", stdout);
+        res = fgets(user_login, 32, stdin);
+        fputs("Password: ", stdout);
+        res = fgets(password, 32, stdin);
+    } else {
+        strncpy(user_login, __YEFWHD_api_login, 31);
+        strncpy(password, __YEFWHD_api_password, 31);
+        user_login[31] = '\0';
+        password[31] = '\0';
+
+    }
     if (res);
+    __nl_del(user_login); __nl_del(password);
+    __nl_del(correct_login); __nl_del(correct_password);
+    if (user_login[strlen(user_login) -  1] == '\n') user_login[strlen(user_login) -  1] = '\0';
     if (!(strcmp(user_login, correct_login) == 0 && strcmp(password, correct_password) == 0)) {
         puts("\033[1mvipre-cryptor: \033[91mThe password or login is incorrect!\033[0m");
         free(arr);