diff --git a/endpoint/endpointComp/endpoint.c b/endpoint/endpointComp/endpoint.c
index 9fc551f8..e5529fe3 100644
--- a/endpoint/endpointComp/endpoint.c
+++ b/endpoint/endpointComp/endpoint.c
@@ -25,8 +25,9 @@
   "999999B"
 #define TEST_DEVICE_ID "470010171566423"
 
-const uint8_t test_key[32] = {82,  142, 184, 64,  74, 105, 126, 65,  154, 116, 14,  193, 208, 41,  8,  115,
-                              158, 252, 228, 160, 79, 5,   167, 185, 13,  159, 135, 113, 49,  209, 58, 68};
+const uint8_t test_private_key[AES_CBC_KEY_SIZE] = {82,  142, 184, 64,  74,  105, 126, 65,  154, 116, 14,
+                                                    193, 208, 41,  8,   115, 158, 252, 228, 160, 79,  5,
+                                                    167, 185, 13,  159, 135, 113, 49,  209, 58,  68};
 const uint8_t test_iv[AES_IV_SIZE] = {164, 3, 98, 193, 52, 162, 107, 252, 184, 42, 74, 225, 157, 26, 88, 72};
 
 static void print_help(void) {
@@ -37,31 +38,98 @@ static void print_help(void) {
       "SYNOPSIS\n"
       "  endpoint [-h]\n"
       "  endpoint [--help]\n"
+      "  endpoint [--val=number]\n"
+      "           [--msg=\"message\"]\n"
+      "           [--msg-fmt=\"message-format\"]\n"
+      "           [--addr=\"address\"]\n"
+      "           [--next-addr=\"next-address\"]\n"
+      "           [--iv=\"initialize-vector\"]\n"
       "\n"
       "OPTIONS\n"
       "  -h\n"
       "  --help\n"
       "    Print the information for helping the users. Ignore other arguments.\n"
+      "\n"
+      "  --val=number\n"
+      "    Assign the integer value for send_transaction_information.\n"
+      "\n"
+      "  --msg=\"message\"\n"
+      "    Assign the message value with string for send_transaction_information.\n"
+      "\n"
+      "  --msg-fmt=\"message-format\"\n"
+      "    Assign the message format of --msg with string.\n"
+      "\n"
+      "  --addr=\"address\"\n"
+      "    Assign the address with string for send_transaction_information.\n"
+      "    The \"address\" should be composed with [9A-Z] and the length should be 81.\n"
+      "\n"
+      "  --next-addr=\"next-address\"\n"
+      "    Assign the next address with string for send_transaction_information.\n"
+      "    The \"next-address\" should be composed with [9A-Z] and the length should be 81.\n"
+      "\n"
+      "  --iv=\"initialize-vector\"\n"
+      "    Assign initialize vector with string for send_transaction_information.\n"
+      "    The \"initialize-vector\" format is \"number,number,...,number\".\n"
       "\n");
 
   exit(EXIT_SUCCESS);
 }
 
+static void string_to_uint8_arr(const char* string, uint8_t arr[]) {
+  if (!string) return;
+
+  size_t str_start = 0, str_bytes = 0, arr_idx = 0;
+  // The maximum value of uint8_t is 255, hence 4 is enough for the string length including the null-terminated
+  // character.
+  char parse_str[4];
+  int parse_int;
+
+  // Seperate the string with the delimiter "," and convert the substring to uint8_t.
+  while (str_start < le_utf8_NumChars(string)) {
+    le_utf8_CopyUpToSubStr(parse_str, &string[str_start], ",", sizeof(parse_str), &str_bytes);
+    le_utf8_ParseInt(&parse_int, parse_str);
+    arr[arr_idx] = (uint8_t)parse_int;
+
+    str_start += (str_bytes + 1);
+    arr_idx++;
+  }
+  return;
+}
+
 COMPONENT_INIT {
   // FIXME:
   // The current code is a prototype for passing the CI.
   // The initialization of hardware and the input from hardware are not implemented yet.
+  int value = TEST_VALUE;
+  const char* message = TEST_MESSAGE;
+  const char* message_fmt = TEST_MESSAGE_FMT;
+  const char* tag = TEST_TAG;
+  const char* address = TEST_ADDRESS;
+  const char* next_address = TEST_NEXT_ADDRESS;
+  uint8_t private_key[AES_CBC_KEY_SIZE] = {0};
+  const char* device_id = TEST_DEVICE_ID;
+  const char* iv_str = NULL;
+  uint8_t iv[AES_IV_SIZE] = {0};
+
+  le_arg_SetIntVar(&value, NULL, "val");
+  le_arg_SetStringVar(&message, NULL, "msg");
+  le_arg_SetStringVar(&message_fmt, NULL, "msg-fmt");
+  le_arg_SetStringVar(&tag, NULL, "tag");
+  le_arg_SetStringVar(&address, NULL, "addr");
+  le_arg_SetStringVar(&next_address, NULL, "next-addr");
+  le_arg_SetStringVar(&iv_str, NULL, "iv");
   le_arg_SetFlagCallback(print_help, "h", "help");
   le_arg_Scan();
 
-  uint8_t iv[AES_IV_SIZE] = {0};
-
-  memcpy(iv, test_iv, AES_IV_SIZE);
+  memcpy(private_key, test_private_key, AES_CBC_KEY_SIZE);
+  if (iv_str)
+    string_to_uint8_arr(iv_str, iv);
+  else
+    memcpy(iv, test_iv, AES_IV_SIZE);
   srand(time(NULL));
 
   while (true) {
-    send_transaction_information(TEST_VALUE, TEST_MESSAGE, TEST_MESSAGE_FMT, TEST_TAG, TEST_ADDRESS, TEST_NEXT_ADDRESS,
-                                 test_key, TEST_DEVICE_ID, iv);
+    send_transaction_information(value, message, message_fmt, tag, address, next_address, private_key, device_id, iv);
     sleep(10);
   }
 }
diff --git a/endpoint/endpointComp/endpoint.h b/endpoint/endpointComp/endpoint.h
index 8a5d8567..c8e3b58e 100644
--- a/endpoint/endpointComp/endpoint.h
+++ b/endpoint/endpointComp/endpoint.h
@@ -9,9 +9,19 @@
 #ifndef ENDPOINT_H
 #define ENDPOINT_H
 
+#include <stdint.h>
+
 /**
  * @brief Print the help message of endpoint application
  */
 static void print_help(void);
 
+/**
+ * @brief Convert the string to uint8_t array
+ *
+ * @param[in] string The string with the combination of number and comma
+ * @param[in,out] arr The array for storing the converted number
+ */
+static void string_to_uint8_arr(const char* string, uint8_t arr[]);
+
 #endif  // ENDPOINT_H