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diff --git a/source/blender/editors/asset/ED_asset_indexer.h b/source/blender/editors/asset/ED_asset_indexer.h
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+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup edasset
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ED_file_indexer.h"
+
+/**
+ * File Indexer Service for indexing asset files.
+ *
+ * Opening and parsing a large collection of asset files inside a library can take a lot of time.
+ * To reduce the time it takes the files are indexed.
+ *
+ * - Index files are created for each blend file in the asset library, even when the blend file
+ *   doesn't contain any assets.
+ * - Indexes are stored in an persistent cache folder (`BKE_appdir_folder_caches` +
+ *   `asset_library_indexes/{asset_library_dir}/{asset_index_file.json}`).
+ * - The content of the indexes are used when:
+ *   - Index exists and can be opened
+ *   - Last modification date is earlier than the file it represents.
+ *   - The index file version is the latest.
+ * - Blend files without any assets can be determined by the size of the index file for some
+ *   additional performance.
+ */
+extern const FileIndexerType file_indexer_asset;
+
+#ifdef __cplusplus
+}
+#endif