diff --git a/build.gradle b/build.gradle
index 58794a2..1d5cc40 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,11 +8,13 @@ version '0.1.0-SNAPSHOT'
 
 repositories {
     mavenCentral()
+    maven { url 'https://jitpack.io' }
 }
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
 
+    implementation 'com.github.wulkanowy:api:fe7ebc7c54'
     implementation 'com.github.ajalt:clikt:1.6.0'
 }
 
diff --git a/src/main/kotlin/io/github/wulkanowy/cli/Main.kt b/src/main/kotlin/io/github/wulkanowy/cli/Main.kt
index 34eff80..c036e1c 100644
--- a/src/main/kotlin/io/github/wulkanowy/cli/Main.kt
+++ b/src/main/kotlin/io/github/wulkanowy/cli/Main.kt
@@ -1,11 +1,35 @@
 package io.github.wulkanowy.cli
 
 import com.github.ajalt.clikt.core.CliktCommand
+import com.github.ajalt.clikt.parameters.options.flag
+import com.github.ajalt.clikt.parameters.options.option
+import com.github.ajalt.clikt.parameters.options.prompt
+import io.github.wulkanowy.api.Api
+import okhttp3.logging.HttpLoggingInterceptor
 
 class Hello : CliktCommand() {
 
+    private val debug by option().flag()
+
+    private val api = Api()
+
+    private val nick by option().prompt()
+
+    private val pass by option().prompt(hideInput = true)
+
     override fun run() {
-        echo("Hello World!")
+        api.apply {
+            logLevel = if (debug) HttpLoggingInterceptor.Level.BODY else HttpLoggingInterceptor.Level.NONE
+            host = "vulcan.net.pl"
+            email = nick
+            password = pass
+        }
+
+        echo("Ładowanie...")
+
+        val students = api.getStudents().blockingGet()
+        echo("Znaleziono uczniów:")
+        students.forEach { echo("${it.studentName} - ${it.description}") }
     }
 }