diff --git a/src/de/anura/core/API/Core.java b/src/de/anura/core/API/Core.java
index e8f4176..033f354 100644
--- a/src/de/anura/core/API/Core.java
+++ b/src/de/anura/core/API/Core.java
@@ -195,6 +195,10 @@ public class Core {
         return AnuraCore.getInstance();
     }
 
+    /**
+     * Makes a player stand up
+     * @param P The player to end the sitting of
+     */
     public static void endSitting(Player P) {
         try {
             if (getMainClass().sittingPlayer.containsKey(P)) {
@@ -220,11 +224,16 @@ public class Core {
         }
     }
 
+    /**
+     * Method to check if a given string can be converted into an integer
+     * @param s The string to check
+     * @return If the given string is an integer
+     */
     public static boolean isInteger(String s) {
         return isInteger(s, 10);
     }
 
-    public static boolean isInteger(String s, int radix) {
+    private static boolean isInteger(String s, int radix) {
         if (s.isEmpty()) {
             return false;
         }
@@ -243,10 +252,18 @@ public class Core {
         return true;
     }
     
+    /**
+     * Returns the level class object
+     * @return The level class object
+     */
     public static Level getLevel() {
         return getMainClass().level;
     }
     
+    /**
+     * Moves a given player to the hub
+     * @param P The player to move to the hub
+     */
     public static void kickToLobby(Player P) {
         try {
             ByteArrayOutputStream b = new ByteArrayOutputStream();
@@ -259,6 +276,10 @@ public class Core {
         }
     }
     
+    /**
+     * Returns the current set spawn
+     * @return The spawn for this server
+     */
     public static Location getServerSpawn() {
         FileConfiguration c = getMainClass().getConfig();
         Location loc = null;
@@ -272,6 +293,11 @@ public class Core {
         return loc;
     }
     
+    /**
+     * Teleports a player to the current set serverspawn
+     * Get serverspawn with {@link getServerSpawn()}
+     * @param P The player to move to the spawn
+     */
     public static void toSpawn(Player P) {
         P.teleport(getServerSpawn());
     }
diff --git a/src/de/anura/core/API/Errors.java b/src/de/anura/core/API/Errors.java
index bc7c205..96f0031 100644
--- a/src/de/anura/core/API/Errors.java
+++ b/src/de/anura/core/API/Errors.java
@@ -8,6 +8,11 @@ import org.bukkit.entity.Player;
 
 public class Errors {
     
+    /**
+     * Reports an exception to the database
+     * @param exc A Throwable to get the error data from
+     * @param info Some additional info
+     */
     public static void reportException(Throwable exc, String info) {
         if (Core.getMySql() == null) {
             System.err.println("FATAL ERROR: Error handler fired before init of mysql connection!!");
@@ -39,10 +44,20 @@ public class Errors {
         }
     }
     
+    /**
+     * Reports an exception to the database
+     * @param exc A Throwable to get the error from
+     */
     public static void reportException(Throwable exc) {
         reportException(exc, "");
     }
     
+    /**
+     * Method to report a bug
+     * @param P The reporter
+     * @param msg A message from the reporter
+     * @param data An array of error entries generated by {@link make(String, Object)}
+     */
     public static void bugReport(Player P, String msg, Entry<String, Object>... data) {
         UUID uuid = P.getUniqueId();
         String dataText = "";
@@ -52,6 +67,12 @@ public class Errors {
         Core.getMySql().queryUpdate("INSERT INTO serverBugs(player, msg, data, timestamp) VALUES ((SELECT id FROM players WHERE uuid = '" + uuid.toString() + "'), '" + Core.getMySql().escapeString(msg) + "', '" + dataText + "', '" + System.currentTimeMillis() / 1000 + "')");
     }
     
+    /**
+     * Generates an error entry
+     * @param key The key for this object
+     * @param value Any object to use as value
+     * @return The error entry to give to
+     */
     public static Entry<String, Object> make(String key, Object value) {
         return new AbstractMap.SimpleEntry<>(key, value);
     }