diff --git "a/include/class-cli\\ConfigWizard.php" "b/include/class-cli\\ConfigWizard.php"
new file mode 100644
index 0000000..f834844
--- /dev/null
+++ "b/include/class-cli\\ConfigWizard.php"
@@ -0,0 +1,137 @@
+<?php
+# Boz-MW - Another MediaWiki API handler in PHP
+# Copyright (C) 2019 Valerio Bozzolan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+namespace cli;
+
+/**
+ * Configuration loader and wizard
+ *
+ * It can help generating a persistent configuration file
+ */
+class ConfigWizard {
+
+	/**
+	 * Require a configuration file or create one
+	 *
+	 * @param string $configuration_path
+	 */
+	public static function requireOrCreate( $configuration_path ) {
+		if( !file_exists( $configuration_path ) ) {
+			echo " _____________________________________ \n";
+			echo "|                                     |\n";
+			echo "| WELCOME IN THE CONFIGURATION WIZARD!|\n";
+			echo "|_____________________________________|\n";
+			echo "\n";
+
+			$variables = [];
+
+			$variables[] = self::askVariableContent(
+				'mw\API::$DEFAULT_USERNAME',
+				"Generated username from [[Special:BotPasswords]]",
+				"Please paste here your generated username from [[Special:BotPasswords]]",
+				[
+					"First of all you must choose an user to be used for your activities.",
+					"If you don't know if you need a new dedicated user first read your wiki bot policies.",
+					"If you work very slowly I think you can just use your real account. Anyway a dedicated account is better.",
+					"",
+					"Now please login in your wiki, with THAT user, and visit the page [[Special:BotPasswords]].",
+					"",
+					"From that page fill the \"Create a new bot password\" form with a useful name",
+					"Example name:",
+					"  VolleyImportStuff\"",
+					"",
+					"Now from check the permissions you will use and then click again on \"Create\".",
+					"",
+					"Example generated username (note that it has '@'):",
+					"  JhonDoo@VolleyImportStuff",
+				]
+			);
+
+			$variables[] = self::askVariableContent(
+				'mw\API::$DEFAULT_PASSWORD',
+				"Generated bot password",
+				"Please paste here your generated bot password", [
+					"Note that it shold be very long and without '@'.",
+				]
+			);
+
+			$content = implode( "\n", $variables );
+			$content = "<?php\n" . $content;
+
+			// write the configuration file
+			echo "Writing '$configuration_path'...\n";
+			file_put_contents( $configuration_path, $content );
+		}
+
+		// include the configuration file
+		require( $configuration_path );
+	}
+
+	/**
+	 * Do a question about a variable value
+	 *
+	 * @param string $variable
+	 * @param string $question
+	 * @param string $comment
+	 */
+	public static function askVariableContent( $variable, $title, $question, $comment_lines = [] ) {
+
+		// start printing some hints
+		echo $title . "\n\n" . implode( $comment_lines, "\n" ) . "\n\n";
+
+		// ask the variable content
+		do {
+			$value = Input::askInput( $question . " - Then press ENTER:" );
+		} while( !$value );
+
+		// put the question above the comment lines, with an empty line before
+		$comment_lines_with_question = array_merge( [ $title, '' ], $comment_lines );
+
+		// create a comment to put above the variable
+		$text = self::toComment( $comment_lines_with_question );
+
+		// save in form of $foo="bar";
+		$text .= sprintf(
+			"%s = \"%s\";\n",
+			$variable,
+			addcslashes( $value, '"')
+		);
+
+		// draw a cosmetic separation line
+		echo str_repeat( "-", 50 ) . "\n\n\n\n";
+
+		return $text;
+	}
+
+	/**
+	 * Put some text lines inside a PHP comment
+	 *
+	 * @param $lines array
+	 * @return       string
+	 */
+	private static function toComment( $lines ) {
+		foreach( $lines as &$line ) {
+			if( $line ) {
+				$line = " * $line";
+			} else {
+				$line = " *";
+			}
+		}
+		$text = implode( "\n", $lines );
+		return "/**\n$text\n */\n";
+	}
+}