This should be valid for NEK integration.

src/api/java/modwarriors/notenoughkeys/api/Api.java

@@ -0,0 +1,40 @@
+package modwarriors.notenoughkeys.api;
+
+import cpw.mods.fml.common.Loader;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+/**
+ * Center of the API. Main api methods can be found in this class.
+ *
+ * @author TheTemportalist
+ */
+@SideOnly(Side.CLIENT)
+public class Api {
+
+	/**
+	 * Checks if NotEnoughKeys is loaded in the current environment
+	 *
+	 * @return 'true' if loaded
+	 */
+	public static boolean isLoaded() {
+		return Loader.isModLoaded("notenoughkeys");
+	}
+
+	/**
+	 * Registers a mod's keys with NEK
+	 *
+	 * @param modname        The NAME of the mod registering the key
+	 * @param keyDecriptions A String[] (Array[String]) of the key descriptions. i.e. new String[]{"key.hotbar1"}
+	 */
+	public static void registerMod(String modname, String[] keyDecriptions) {
+		try {
+			Class.forName("modwarriors.notenoughkeys.keys.KeyBindTracker").getMethod(
+					"registerMod", String.class, String[].class
+			).invoke(null, modname, keyDecriptions);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+}

src/api/java/modwarriors/notenoughkeys/api/KeyBindingPressedEvent.java

@@ -0,0 +1,43 @@
+package modwarriors.notenoughkeys.api;
+
+import cpw.mods.fml.common.eventhandler.Cancelable;
+import cpw.mods.fml.common.eventhandler.Event;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+import net.minecraft.client.settings.KeyBinding;
+
+/**
+ * Called when a keybinding is triggered with the passed with valid modifiers
+ *
+ * @author TheTemportalist
+ */
+@SideOnly(Side.CLIENT)
+@Cancelable
+public class KeyBindingPressedEvent extends Event {
+
+	/**
+	 * The KeyBinding being triggered
+	 */
+	public KeyBinding keyBinding = null;
+	/**
+	 * Tells whether a modifier was required AND was down when triggered
+	 */
+	public boolean shiftRequired = false, ctrlRequired = false, altRequired = false;
+
+	/**
+	 * Called with the passed keyBinding and modifiers.
+	 * Subscribe to this event so activate a keybinding when triggered.
+	 *
+	 * @param keyBinding The KeyBinding being triggered. Stores the key's description and keycode
+	 * @param modifiers  The modifiers (SHIFT, CTRL, ALT) that determine when a compatible key is pressed
+	 */
+	public KeyBindingPressedEvent(KeyBinding keyBinding, boolean[] modifiers) {
+		super();
+		this.keyBinding = keyBinding;
+		this.shiftRequired = modifiers[0];
+		this.ctrlRequired = modifiers[1];
+		this.altRequired = modifiers[2];
+
+	}
+
+}

src/api/java/modwarriors/notenoughkeys/api/package-info.java

@@ -0,0 +1,5 @@
+
+@API(owner = "Not Enough Keys", provides = "API_NEK",
+		apiVersion = "1.0.0") package modwarriors.notenoughkeys.api;
+
+import cpw.mods.fml.common.API;