diff --git a/app.js b/app.js
index 724c708..f300143 100644
--- a/app.js
+++ b/app.js
@@ -16,6 +16,7 @@ function init() {
 	require('./helpers/utils/erc20_utils');
 	require('./server');
 	require('./modules/checkTwitterFollow');
+	require('./modules/apiTester');
 	require('./modules/checkTwitterRetweet');
 	require('./modules/checkAdamantContacts');
 	require('./modules/checkAll');
diff --git a/config.json b/config.json
index c0b50eb..613eb6e 100644
--- a/config.json
+++ b/config.json
@@ -102,6 +102,14 @@
 		"access_token_secret": ""
 	},
 
+	/** Interval in minutes to test Twitter API. Because of different reasons Twitter may temporary block API requests.
+	To continue, you need manually login into your Twitter account and solve captcha.
+	This parameter allows to automatically check if Twitter API works well every twitter_api_test_interval minutes.
+	In case of error the bot will notify you. Also you can run "/test twitterapi" command manually.
+	0 means disabled.
+	**/
+	"twitter_api_test_interval": 600,
+
 	/** ADAMANT accounts to accept control commands from. Control commands from other accounts will not be executed. **/
 	"admin_accounts": [
 		"U1123..."
diff --git a/modules/apiTester.js b/modules/apiTester.js
new file mode 100644
index 0000000..b404f5d
--- /dev/null
+++ b/modules/apiTester.js
@@ -0,0 +1,24 @@
+const config = require('./configReader');
+const log = require('../helpers/log');
+const notify = require('../helpers/notify');
+const twitterapi = require('./twitterapi');
+
+async function testTwitterAPI() {
+    let testResult = await twitterapi.testApi();
+    let output;
+    if (testResult.success) {
+        output = "Twitter API functions well.";
+        log.info(output);
+    } else {
+        output = `Error while making Twitter API request: ${testResult.message}`;
+        output += "\n";
+        output += `Make sure Twitter didn't block your API credentials. If so, you need to manually login into your Twitter account and solve captcha.`;
+        notify(output, 'error');
+    }
+}
+
+if (config.twitter_api_test_interval) {
+    setInterval(() => {
+        testTwitterAPI();
+    }, config.twitter_api_test_interval * 60 * 1000);
+}
diff --git a/modules/commandTxs.js b/modules/commandTxs.js
index 2a15498..20b58ab 100644
--- a/modules/commandTxs.js
+++ b/modules/commandTxs.js
@@ -3,6 +3,7 @@ const $u = require('../helpers/utils');
 const config = require('./configReader');
 const log = require('../helpers/log');
 const notify = require('../helpers/notify');
+const twitterapi = require('./twitterapi');
 
 module.exports = async (cmd, tx, itx) => {
 
@@ -26,7 +27,7 @@ module.exports = async (cmd, tx, itx) => {
 				isNonAdmin: true
 			}, true);
 			if (config.notify_non_admins) {			
-				$u.sendAdmMsg(tx.senderId, `I won't execute admin commands as you are not an admin. Connect with my master.`);
+				$u.sendAdmMsg(tx.senderId, `I won't execute admin commands as you are not an admin. Contact my master.`);
 			}
 			return;
 		}
@@ -153,6 +154,36 @@ async function calc(arr) {
 
 }
 
+async function test(param) {
+
+	param = param[0].trim();
+	if (!param || !["twitterapi"].includes(param)) {
+		return {
+			msgNotify: ``,
+			msgSendBack: 'Wrong arguments. Command works like this: */test twitterapi*.',
+			notifyType: 'log'
+		}
+	}
+
+	let output;
+
+	if (param === "twitterapi") {
+		let testResult = await twitterapi.testApi();
+		if (testResult.success) {
+			output = "Twitter API functions well.";
+		} else {
+			output = `Error while making Twitter API request: ${testResult.message}`;
+		}
+	}
+
+	return {
+		msgNotify: ``,
+		msgSendBack: `${output}`,
+		notifyType: 'log'
+	}
+
+}
+
 function version() {
 	return {
 		msgNotify: ``,
@@ -161,13 +192,33 @@ function version() {
 	}
 }
 
+function balances() {
+	let output = "";
+	config.known_crypto.forEach(crypto => {
+		if (Store.user[crypto].balance && Store.user[crypto].balance !== undefined) {
+			output += `${$u.thousandSeparator(+Store.user[crypto].balance.toFixed(8), true)} _${crypto}_`;
+			output += "\n";
+		}
+	});
+
+	return {
+		msgNotify: ``,
+		msgSendBack: `My crypto balances:
+${output}`,
+		notifyType: 'log'
+	}
+}
+
 const commands = {
 	help,
 	rates,
 	calc,
-	version
+	version,
+	balances,
+	test
 }
 
 const admin_commands = [
-	""
+	"test",
+	"balances"
 ]
\ No newline at end of file
diff --git a/modules/configReader.js b/modules/configReader.js
index 15f8273..b6e84f7 100644
--- a/modules/configReader.js
+++ b/modules/configReader.js
@@ -59,6 +59,10 @@ const fields = {
 		type: Object,
 		default: {}
 	},
+	twitter_api_test_interval: {
+		type: Number,
+		default: 600
+	},
 	slack: {
 		type: String,
 		default: null
diff --git a/modules/twitterapi.js b/modules/twitterapi.js
index 1ae1a94..0c146e7 100644
--- a/modules/twitterapi.js
+++ b/modules/twitterapi.js
@@ -110,7 +110,7 @@ async function getAccountTimeline(account) {
 
 async function getAccountInfo(account) {
   const accountSN = $u.getTwitterScreenName(account);
-  console.log(`Getting user info for @${accountSN}..`)
+  // console.log(`Getting user info for @${accountSN}..`)
 
   return await Twitter.get('users/show', {screen_name: accountSN})
     .then(function (data) {
@@ -128,6 +128,33 @@ async function getAccountInfo(account) {
 
 module.exports = {
 
+  async testApi() {
+
+    let testResult = {
+      success: false,
+      message: ""
+    }
+
+    try {
+
+      const testAccount = "@TwitterDev";
+      let result = await getAccountInfo(testAccount);
+
+      if (result && result.id_str === '2244994945') {
+        testResult.success = true;
+      } else {
+        testResult.success = false;
+        testResult.message = "Request *users/show* for @TwitterDev didn't return expected value.";
+      }
+      return testResult;
+
+    } catch (e) {
+      testResult.success = false;
+      testResult.message = "Exception while making *users/show* request."; 
+      return testResult;
+    }
+
+  },
   // Search for predefined toFollowIds — save Twitter API requests
   // followAccount should be in "twitter_follow" param in config
   async checkIfAccountFollowing(twitterAccount, followAccount) {
diff --git a/package.json b/package.json
index dd6c195..e086b0e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "adamant-bountybot",
-  "version": "0.8.1",
-  "description": "",
+  "version": "1.0.0",
+  "description": "ADAMANT Bounty bot — a software that allows you to carry out bounty campaigns & crypto airdrops, with automatic task verifications and payouts.",
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"