diff --git a/CHANGELOG.md b/CHANGELOG.md
index 25a7f439..9def8fd7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 All notable changes to `WP Curate` will be documented in this file.
 
+## 1.3.0 - 2023-10-26
+
+- Only show the blocks and register the meta on supported post types.
+- Supported post types defaults to all Block Editor post types, but can be filtered by filtering `wp_curate_supported_post_types`.
+
 ## 1.2.0 - 2023-10-26
 
 - Adds support for AND/OR operators in the Query Parameters, giving more control over what posts to show.
diff --git a/blocks/post/index.php b/blocks/post/index.php
index c4f7d0af..c46586e6 100644
--- a/blocks/post/index.php
+++ b/blocks/post/index.php
@@ -5,10 +5,17 @@
  * @package wp-curate
  */
 
+use Alley\WP\WP_Curate\Supported_Post_Types;
+
 /**
  * Registers the wp-curate/post block using the metadata loaded from the `block.json` file.
  */
 function wp_curate_post_block_init(): void {
+	$supported_post_types = new Supported_Post_Types();
+	if ( ! in_array( $supported_post_types->get_current_post_type(), $supported_post_types->get_supported_post_types(), true ) ) {
+		return;
+	}
+
 	// Register the block by passing the location of block.json.
 	register_block_type(
 		__DIR__
diff --git a/blocks/query/index.php b/blocks/query/index.php
index 6624f18b..61b3f4c6 100644
--- a/blocks/query/index.php
+++ b/blocks/query/index.php
@@ -5,6 +5,8 @@
  * @package wp-curate
  */
 
+use Alley\WP\WP_Curate\Supported_Post_Types;
+
 /**
  * Registers the block using the metadata loaded from the `block.json` file.
  * Behind the scenes, it registers also all assets so they can be enqueued
@@ -13,6 +15,11 @@
  * @see https://developer.wordpress.org/reference/functions/register_block_type/
  */
 function wp_curate_query_block_init(): void {
+	$supported_post_types = new Supported_Post_Types();
+	if ( ! in_array( $supported_post_types->get_current_post_type(), $supported_post_types->get_supported_post_types(), true ) ) {
+		return;
+	}
+
 	// Register the block by passing the location of block.json.
 	register_block_type(
 		__DIR__,
diff --git a/config/post-meta.json b/config/post-meta.json
index 1575f8d4..e69de29b 100644
--- a/config/post-meta.json
+++ b/config/post-meta.json
@@ -1,8 +0,0 @@
-{
-  "wp_curate_deduplication": {
-    "post_types": [
-      "all"
-    ],
-    "type": "boolean"
-  }
-}
diff --git a/src/class-supported-post-types.php b/src/class-supported-post-types.php
new file mode 100644
index 00000000..f1aa5396
--- /dev/null
+++ b/src/class-supported-post-types.php
@@ -0,0 +1,87 @@
+<?php
+/**
+ * Supported_Post_Types class file
+ *
+ * @package wp-curate
+ */
+
+namespace Alley\WP\WP_Curate;
+
+/**
+ * The post types that should allow the Curation blocks and related meta.
+ */
+final class Supported_Post_Types {
+	/**
+	 * Stores the supported types.
+	 *
+	 * @var string[]
+	 */
+	private array $supported_post_types;
+
+	/**
+	 * Set up.
+	 */
+	public function __construct() {
+		$this->initialize_supported_post_types();
+	}
+
+	/**
+	 * Initialize the supported post types.
+	 */
+	public function initialize_supported_post_types(): void {
+		// Get all post types.
+		$post_types                 = get_post_types( [], 'objects' );
+		$supported_post_types       = array_filter( $post_types, fn( $type ) => $type->public && use_block_editor_for_post_type( $type->name ) );
+		$this->supported_post_types = ( wp_list_pluck( $supported_post_types, 'name' ) );
+		$this->register_post_meta();
+	}
+
+	/**
+	 * Get the supported post types.
+	 *
+	 * @return string[]
+	 */
+	public function get_supported_post_types(): array {
+		return apply_filters( 'wp_curate_supported_post_types', $this->supported_post_types );
+	}
+
+	/**
+	 * Get the current post type.
+	 *
+	 * @return string|false
+	 */
+	public function get_current_post_type(): string|false {
+		$post_type = '';
+
+		// Ensure we are in the admin before proceeding.
+		if ( is_admin() ) {
+			global $pagenow;
+
+			// phpcs:ignore WordPress.VIP.SuperGlobalInputUsage.AccessDetected, WordPress.Security.NonceVerification.NoNonceVerification, WordPress.Security.NonceVerification.Recommended
+			if ( 'post.php' === $pagenow && ! empty( $_GET['post'] ) ) {
+				// phpcs:ignore WordPress.VIP.SuperGlobalInputUsage.AccessDetected, WordPress.Security.NonceVerification.Recommended
+				$post_id   = absint( $_GET['post'] );
+				$post_type = get_post_type( $post_id );
+			// phpcs:ignore WordPress.VIP.SuperGlobalInputUsage.AccessDetected, WordPress.Security.NonceVerification.NoNonceVerification, WordPress.Security.NonceVerification.Recommended
+			} elseif ( 'post-new.php' === $pagenow && ! empty( $_GET['post_type'] ) ) {
+				// phpcs:ignore WordPress.VIP.SuperGlobalInputUsage.AccessDetected, WordPress.Security.NonceVerification.Recommended
+				$post_type = sanitize_text_field( $_GET['post_type'] );
+			}
+		}
+		return $post_type;
+	}
+
+	/**
+	 * Register the post meta on the supported post types.
+	 */
+	public function register_post_meta(): void {
+		register_meta_helper(
+			'post',
+			$this->get_supported_post_types(),
+			'wp_curate_deduplication',
+			[
+				'type' => 'boolean',
+			]
+		);
+	}
+}
diff --git a/wp-curate.php b/wp-curate.php
index 986e4ee6..f72c32ea 100644
--- a/wp-curate.php
+++ b/wp-curate.php
@@ -3,7 +3,7 @@
  * Plugin Name: WP Curate
  * Plugin URI: https://github.com/alleyinteractive/wp-curate
  * Description: Plugin to curate homepages and other landing pages
- * Version: 1.2.0
+ * Version: 1.3.0
  * Author: Alley Interactive
  * Author URI: https://github.com/alleyinteractive/wp-curate
  * Requires at least: 6.3