diff --git a/includes/class-setup.php b/includes/class-setup.php
index 47552b8..2a25e12 100644
--- a/includes/class-setup.php
+++ b/includes/class-setup.php
@@ -109,6 +109,17 @@ class Setup {
 		return self::$instance;
 	}
 
+	public static function get_event_plugins() {
+        // Get all plugin definition classes from the includes/plugins folder.
+        $plugin_files = glob( ACTIVITYPUB_EVENT_EXTENSIONS_PLUGIN_DIR . 'includes/plugins/class-*.php' );
+
+		foreach ( $plugin_files as $plugin_file ) {
+			require_once $plugin_file;
+			
+		}
+        return $basenames;
+	}
+
 	/**
 	 * Function that checks for supported activated event plugins.
 	 *
diff --git a/includes/plugins/class-events-manager.php b/includes/plugins/class-events-manager.php
new file mode 100644
index 0000000..f50920e
--- /dev/null
+++ b/includes/plugins/class-events-manager.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * Events Manager.
+ *
+ * Defines all the necessary meta information for the Events Manager WordPress Plugin.
+ *
+ * @link    https://wordpress.org/plugins/events-manager/
+ * @package Activitypub_Event_Extensions
+ * @since   1.0.0
+ */
+
+namespace Activitypub_Event_Extensions\Plugins;
+
+// Exit if accessed directly.
+defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
+
+require_once __DIR__ . '/interface-event-plugin.php';
+
+/**
+ * Interface for a supported event plugin.
+ *
+ * This interface defines which information is necessary for a supported event plugin.
+ *
+ * @since 1.0.0
+ */
+class Events_Manager implements Event_Plugin {
+	/**
+	 * Returns the full plugin file.
+	 *
+	 * @return string
+	 */
+	public static function get_plugin_file(): string {
+		return 'the-events-calendar/the-events-calendar.php';
+	}
+
+	/**
+	 * Returns the event post type of the plugin.
+	 *
+	 * @return string
+	 */
+	public static function get_post_type(): string {
+		return defined( 'EM_POST_TYPE_EVENT' ) ? constant( 'EM_POST_TYPE_EVENT' ) : 'event';
+	}
+
+	/**
+	 * Returns the ID of the main settings page of the plugin.
+	 *
+	 * @return string The settings page url.
+	 */
+	public static function get_settings_page(): string {
+		return 'wp-admin/edit.php?post_type=event&page=events-manager-options#general';
+	}
+
+	/**
+	 * Returns the ActivityPub transformer class.
+	 *
+	 * @return string
+	 */
+	public static function get_activitypub_transformer_class_name(): string {
+		return 'GatherPress';
+	}
+
+	/**
+	 * Returns the taxonomy used for the plugin's event categories.
+	 *
+	 * @return string
+	 */
+	public static function get_taxonomy(): string {
+		return defined( 'EM_TAXONOMY_CATEGORY' ) ? constant( 'EM_TAXONOMY_CATEGORY' ) : 'event-categories';
+	}
+}
diff --git a/includes/plugins/class-gatherpress.php b/includes/plugins/class-gatherpress.php
new file mode 100644
index 0000000..670916d
--- /dev/null
+++ b/includes/plugins/class-gatherpress.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * GatherPress.
+ *
+ * Defines all the necessary meta information for the GatherPress plugin.
+ *
+ * @link    https://wordpress.org/plugins/gatherpress/
+ * @package Activitypub_Event_Extensions
+ * @since   1.0.0
+ */
+
+namespace Activitypub_Event_Extensions\Plugins;
+
+// Exit if accessed directly.
+defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
+
+require_once __DIR__ . '/interface-event-plugin.php';
+
+use Activitypub_Event_Extensions\Plugins\Event_Plugin;
+use GatherPress\Core\Event;
+use GatherPress\Core\Topic;
+use GatherPress\Core\Utility;
+
+/**
+ * Interface for a supported event plugin.
+ *
+ * This interface defines which information is necessary for a supported event plugin.
+ *
+ * @since 1.0.0
+ */
+class Gatherpress implements Event_Plugin {
+	/**
+	 * Returns the full plugin file.
+	 *
+	 * @return string
+	 */
+	public static function get_plugin_file(): string {
+		return 'the-events-calendar/the-events-calendar.php';
+	}
+
+	/**
+	 * Returns the event post type of the plugin.
+	 *
+	 * @return string
+	 */
+	public static function get_post_type(): string {
+		return Event::POST_TYPE;
+	}
+
+	/**
+	 * Returns the ID of the main settings page of the plugin.
+	 *
+	 * @return string The settings page url.
+	 */
+	public static function get_settings_page(): string {
+		return Utility::prefix_key( 'general' );
+	}
+
+	/**
+	 * Returns the ActivityPub transformer class.
+	 *
+	 * @return string
+	 */
+	public static function get_activitypub_transformer_class_name(): string {
+		return 'GatherPress';
+	}
+
+	/**
+	 * Returns the taxonomy used for the plugin's event categories.
+	 *
+	 * @return string
+	 */
+	public static function get_taxonomy(): string {
+		return Topic::TAXONOMY;
+	}
+}
diff --git a/includes/plugins/class-the-events-calendar.php b/includes/plugins/class-the-events-calendar.php
new file mode 100644
index 0000000..e48505d
--- /dev/null
+++ b/includes/plugins/class-the-events-calendar.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * The Events Calendar.
+ *
+ * Defines all the necessary meta information for the events calendar.
+ *
+ * @link    https://wordpress.org/plugins/the-events-calendar/
+ * @package Activitypub_Event_Extensions
+ * @since   1.0.0
+ */
+
+namespace Activitypub_Event_Extensions\Plugins;
+
+// Exit if accessed directly.
+defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
+
+require_once __DIR__ . '/interface-event-plugin.php';
+
+use Activitypub_Event_Extensions\Plugins\Event_Plugin;
+
+/**
+ * Interface for a supported event plugin.
+ *
+ * This interface defines which information is necessary for a supported event plugin.
+ *
+ * @since 1.0.0
+ */
+class The_Events_Calendar implements Event_plugin {
+	/**
+	 * Returns the full plugin file.
+	 *
+	 * @return string
+	 */
+	public static function get_plugin_file(): string {
+		return 'the-events-calendar/the-events-calendar.php';
+	}
+
+	/**
+	 * Returns the event post type of the plugin.
+	 *
+	 * @return string
+	 */
+	public static function get_post_type(): string {
+		return \Tribe__Events__Main::POSTTYPE;
+	}
+
+	const POST_TYPE = class_exists( 'Tribe__Events__Main' ) ? \Tribe__Events__Main::POSTTYPE : 'tribe_event';
+
+	/**
+	 * Returns the ID of the main settings page of the plugin.
+	 *
+	 * @return string The settings page url.
+	 */
+	public static function get_settings_page(): string {
+		// TODO: Tribe\Events\Admin\Settings::settings_page_id.
+		return 'edit.php?post_type=tribe_events&page=tec-events-settings';
+	}
+
+	/**
+	 * Returns the ActivityPub transformer class.
+	 *
+	 * @return string
+	 */
+	public static function get_activitypub_transformer_class_name(): string {
+		return 'Tribe';
+	}
+
+	/**
+	 * Returns the taxonomy used for the plugin's event categories.
+	 *
+	 * @return string
+	 */
+	public static function get_taxonomy(): string {
+		return Tribe__Events__Main::TAXONOMY;
+	}
+}
diff --git a/includes/plugins/class-vs-event-list.php b/includes/plugins/class-vs-event-list.php
new file mode 100644
index 0000000..e5bae52
--- /dev/null
+++ b/includes/plugins/class-vs-event-list.php
@@ -0,0 +1,72 @@
+<?php
+/**
+ * VS Events LIst.
+ *
+ * Defines all the necessary meta information for the WordPress event plugin
+ * "Very Simple Events List".
+ *
+ * @link    https://de.wordpress.org/plugins/very-simple-event-list/
+ * @package Activitypub_Event_Extensions
+ * @since   1.0.0
+ */
+
+namespace Activitypub_Event_Extensions\Plugins;
+
+// Exit if accessed directly.
+defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
+
+require_once __DIR__ . '/interface-event-plugin.php';
+
+/**
+ * Interface for a supported event plugin.
+ *
+ * This interface defines which information is necessary for a supported event plugin.
+ *
+ * @since 1.0.0
+ */
+class VS_Event_List implements Event_Plugin {
+	/**
+	 * Returns the full plugin file.
+	 *
+	 * @return string
+	 */
+	public static function get_plugin_file(): string {
+		return 'very-simple-event-list/vsel.php';
+	}
+
+	/**
+	 * Returns the event post type of the plugin.
+	 *
+	 * @return string
+	 */
+	public static function get_post_type(): string {
+		return 'event';
+	}
+
+	/**
+	 * Returns the ID of the main settings page of the plugin.
+	 *
+	 * @return string The settings page url.
+	 */
+	public static function get_settings_page(): string {
+		return 'settings_page_vsel';
+	}
+
+	/**
+	 * Returns the ActivityPub transformer class.
+	 *
+	 * @return string
+	 */
+	public static function get_activitypub_transformer_class_name(): string {
+		return 'VS_Event';
+	}
+
+	/**
+	 * Returns the taxonomy used for the plugin's event categories.
+	 *
+	 * @return string
+	 */
+	public static function get_taxonomy(): string {
+		return 'event_cat';
+	}
+}
diff --git a/includes/plugins/interface-event-plugin.php b/includes/plugins/interface-event-plugin.php
new file mode 100644
index 0000000..c4859e5
--- /dev/null
+++ b/includes/plugins/interface-event-plugin.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Interface for defining supported Event Plugins.
+ *
+ * Basic information that each supported event needs for this plugin to work.
+ *
+ * @package Activitypub_Event_Extensions
+ * @since 1.0.0
+ */
+
+namespace Activitypub_Event_Extensions\Plugins;
+
+// Exit if accessed directly.
+defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
+
+/**
+ * Interface for a supported event plugin.
+ *
+ * This interface defines which information is necessary for a supported event plugin.
+ *
+ * @since 1.0.0
+ */
+interface Event_Plugin {
+	/**
+	 * Returns the full plugin file.
+	 *
+	 * @return string
+	 */
+	public static function get_plugin_file(): string;
+
+	/**
+	 * Returns the event post type of the plugin.
+	 *
+	 * @return string
+	 */
+	public static function get_post_type(): string;
+
+	/**
+	 * Returns the ID of the main settings page of the plugin.
+	 *
+	 * @return string The settings page url.
+	 */
+	public static function get_settings_page(): string;
+
+	/**
+	 * Returns the ActivityPub transformer class.
+	 *
+	 * @return string
+	 */
+	public static function get_activitypub_transformer_class_name(): string;
+
+	/**
+	 * Returns the taxonomy used for the plugin's event categories.
+	 *
+	 * @return string
+	 */
+	public static function get_taxonomy(): string;
+}