diff --git a/lib/compat/wordpress-7.0/command-palette.php b/lib/compat/wordpress-7.0/command-palette.php
new file mode 100644
index 00000000000000..4bdb97dbe22ee2
--- /dev/null
+++ b/lib/compat/wordpress-7.0/command-palette.php
@@ -0,0 +1,81 @@
+<?php
+/**
+ * Adds the Command Palette trigger button to the admin bar.
+ *
+ * @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance.
+ */
+function gutenberg_admin_bar_command_palette_menu( WP_Admin_Bar $wp_admin_bar ): void {
+	if ( ! is_admin() || ! wp_script_is( 'wp-core-commands', 'enqueued' ) ) {
+		return;
+	}
+
+	$is_apple_os    = (bool) preg_match( '/Macintosh|Mac OS X|Mac_PowerPC/i', $_SERVER['HTTP_USER_AGENT'] ?? '' );
+	$shortcut_label = $is_apple_os
+		? _x( '⌘K', 'keyboard shortcut to open the command palette' )
+		: _x( 'Ctrl+K', 'keyboard shortcut to open the command palette' );
+	$title          = sprintf(
+		'<span class="ab-icon" aria-hidden="true"></span><span class="ab-label"><kbd>%s</kbd><span class="screen-reader-text"> %s</span></span>',
+		$shortcut_label,
+		/* translators: Hidden accessibility text. */
+		__( 'Open command palette' ),
+	);
+	$wp_admin_bar->add_node(
+		array(
+			'id'    => 'command-palette',
+			'title' => $title,
+			'href'  => '#',
+			'meta'  => array(
+				'class'   => 'hide-if-no-js',
+				'onclick' => 'wp.data.dispatch( "core/commands" ).open(); return false;',
+			),
+		)
+	);
+}
+if ( has_action( 'admin_bar_menu', 'wp_admin_bar_command_palette_menu' ) ) {
+	remove_action( 'admin_bar_menu', 'wp_admin_bar_command_palette_menu', 55 );
+}
+add_action( 'admin_bar_menu', 'gutenberg_admin_bar_command_palette_menu', 55 );
+
+function gutenberg_add_admin_bar_styles() {
+	if ( ! is_admin_bar_showing() ) {
+			return;
+	}
+	$css = <<<CSS
+		#wpadminbar #wp-admin-bar-command-palette .ab-icon {
+			display: none; /* Icon displayed only on mobile */
+		}
+		#wpadminbar #wp-admin-bar-command-palette .ab-icon:before {
+			content: "\\f179";
+			content: "\\f179" / '';
+		}
+		#wpadminbar #wp-admin-bar-command-palette kbd {
+			background: transparent;
+		}
+		@media screen and (max-width: 782px) {
+			#wpadminbar #wp-admin-bar-command-palette .ab-icon {
+				display: block; /* Icon is only shown on mobile, while the keyboard shortcut is hidden */
+			}
+			#wpadminbar #wp-admin-bar-command-palette .ab-icon:before {
+				text-indent: 0;
+				font: normal 32px/1 dashicons;
+				width: 52px;
+				text-align: center;
+				-webkit-font-smoothing: antialiased;
+				-moz-osx-font-smoothing: grayscale;
+				display: block;
+				font-size: 34px;
+				height: 46px;
+				line-height: 1.38235294;
+				top: 0;
+			}
+			#wpadminbar li#wp-admin-bar-command-palette {
+				display: block;
+			}
+			#wpadminbar #wp-admin-bar-command-palette {
+				position: static;
+			}
+		}
+CSS;
+	wp_add_inline_style( 'admin-bar', $css );
+}
+add_action( 'admin_bar_init', 'gutenberg_add_admin_bar_styles' );
diff --git a/lib/load.php b/lib/load.php
index 487550e3e21671..e047840401ea68 100644
--- a/lib/load.php
+++ b/lib/load.php
@@ -117,6 +117,7 @@ function gutenberg_is_experiment_enabled( $name ) {
 require __DIR__ . '/compat/wordpress-7.0/blocks.php';
 require __DIR__ . '/compat/wordpress-7.0/kses.php';
 require __DIR__ . '/compat/wordpress-7.0/media.php';
+require __DIR__ . '/compat/wordpress-7.0/command-palette.php';
 
 // Experimental features.
 require __DIR__ . '/experimental/block-editor-settings-mobile.php';