diff --git a/src/main/java/ley/untis/UntisClient.java b/src/main/java/ley/untis/UntisClient.java
index 93ad002..027c92c 100644
--- a/src/main/java/ley/untis/UntisClient.java
+++ b/src/main/java/ley/untis/UntisClient.java
@@ -1,9 +1,7 @@
 package ley.untis;
 
 import com.googlecode.jsonrpc4j.JsonRpcHttpClient;
-import ley.untis.data.AuthParams;
-import ley.untis.data.AuthResponse;
-import ley.untis.data.SubjectResponse;
+import ley.untis.data.*;
 import ley.untis.exception.APIRequestException;
 
 import java.net.URL;
@@ -69,7 +67,7 @@ public class UntisClient {
      * @return an ArrayList of subjects
      * @throws APIRequestException
      */
-    public SubjectResponse getSubjects() throws APIRequestException{
+    public SubjectResponse getSubjects() throws APIRequestException {
         try {
             return client.invoke("getSubjects", new Object[0], SubjectResponse.class);
         } catch (Throwable e) {
@@ -77,5 +75,72 @@ public class UntisClient {
         }
     }
 
+    /**
+     * Get list of teachers
+     * @return an ArrayList of teachers
+     * @throws APIRequestException
+     */
+    public TeacherResponse getTeachers() throws APIRequestException {
+        try {
+            return client.invoke("getTeachers", new Object[0], TeacherResponse.class);
+        } catch (Throwable e) {
+            throw new APIRequestException(e);
+        }
+    }
+
+    /**
+     * Get list of Klassen (base class) for schoolyear
+     * @param schoolyearId Id of the schoolyear
+     * @return an ArrayList of Klassen
+     * @throws APIRequestException
+     */
+    public KlasseResponse getKlassen(String schoolyearId) throws APIRequestException {
+        try {
+            return client.invoke("getKlassen", new KlasseParams(schoolyearId), KlasseResponse.class);
+        } catch (Throwable e) {
+            throw new APIRequestException(e);
+        }
+    }
+
+    /**
+     * Get list of Klassen (base class) for current schoolyear
+     * @return an ArrayList of Klassen
+     * @throws APIRequestException
+     */
+    public KlasseResponse getKlassen() throws APIRequestException {
+        try {
+            return client.invoke("getKlassen", new Object[0], KlasseResponse.class);
+        } catch (Throwable e) {
+            throw new APIRequestException(e);
+        }
+    }
+
+    /**
+     * Get list of students
+     * @return an ArrayList of students
+     * @throws APIRequestException
+     */
+    public StudentResponse getStudents() throws APIRequestException {
+        try {
+            return client.invoke("getStudents", new Object[0], StudentResponse.class);
+        } catch (Throwable e) {
+            throw new APIRequestException(e);
+        }
+    }
+
+    /**
+     * Get list of rooms
+     * @return an ArrayList of rooms
+     * @throws APIRequestException
+     */
+    public RoomResponse getRooms() throws APIRequestException {
+        try {
+            return client.invoke("getRooms", new Object[0], RoomResponse.class);
+        } catch (Throwable e)
+        {
+            throw new APIRequestException(e);
+        }
+    }
+
 
 }
diff --git a/src/main/java/ley/untis/data/KlasseParams.java b/src/main/java/ley/untis/data/KlasseParams.java
new file mode 100644
index 0000000..45f47a7
--- /dev/null
+++ b/src/main/java/ley/untis/data/KlasseParams.java
@@ -0,0 +1,10 @@
+package ley.untis.data;
+
+public class KlasseParams {
+
+    public String schoolyearId;
+
+    public KlasseParams(String schoolyearId) {
+        this.schoolyearId = schoolyearId;
+    }
+}
diff --git a/src/main/java/ley/untis/data/KlasseResponse.java b/src/main/java/ley/untis/data/KlasseResponse.java
new file mode 100644
index 0000000..1ec3122
--- /dev/null
+++ b/src/main/java/ley/untis/data/KlasseResponse.java
@@ -0,0 +1,17 @@
+package ley.untis.data;
+
+import java.util.ArrayList;
+
+public class KlasseResponse extends ArrayList<KlasseResponse.Klasse> {
+
+    public static class Klasse {
+        public int id;
+        public String name;
+        public String longName;
+        public String backColor;
+        public String longColor;
+
+
+    }
+
+}
diff --git a/src/main/java/ley/untis/data/RoomResponse.java b/src/main/java/ley/untis/data/RoomResponse.java
new file mode 100644
index 0000000..623056c
--- /dev/null
+++ b/src/main/java/ley/untis/data/RoomResponse.java
@@ -0,0 +1,15 @@
+package ley.untis.data;
+
+import java.util.ArrayList;
+
+public class RoomResponse extends ArrayList<RoomResponse.Room> {
+
+    public static class Room {
+        public int id;
+        public String name;
+        public String longName;
+        public String foreColor;
+        public String backColor;
+    }
+
+}
diff --git a/src/main/java/ley/untis/data/StudentResponse.java b/src/main/java/ley/untis/data/StudentResponse.java
new file mode 100644
index 0000000..7a9d1b7
--- /dev/null
+++ b/src/main/java/ley/untis/data/StudentResponse.java
@@ -0,0 +1,16 @@
+package ley.untis.data;
+
+import java.util.ArrayList;
+
+public class StudentResponse extends ArrayList<StudentResponse.Student> {
+
+    public static class Student {
+        public int id;
+        public String key;
+        public String name;
+        public String foreName;
+        public String longName;
+        public String gender;
+    }
+
+}
diff --git a/src/main/java/ley/untis/data/TeacherResponse.java b/src/main/java/ley/untis/data/TeacherResponse.java
new file mode 100644
index 0000000..785c101
--- /dev/null
+++ b/src/main/java/ley/untis/data/TeacherResponse.java
@@ -0,0 +1,18 @@
+package ley.untis.data;
+
+import java.util.ArrayList;
+
+public class TeacherResponse extends ArrayList<TeacherResponse.Teacher> {
+
+    public static class Teacher {
+
+        public int id;
+        public String name;
+        public String longName;
+        public String foreName;
+        public String foreColor;
+        public String backColor;
+
+    }
+
+}