diff --git a/index.html b/index.html
index 8eda822..8d88538 100644
--- a/index.html
+++ b/index.html
@@ -901,10 +901,16 @@ const API = {
   getHstTags() { return this.fetch("/hst?select=mrf,ref,name_es,name_en,alias", "tzzr_core_hst", { fallback: [] }); },
   getGroups() { return this.fetch("/api_groups", "public", { fallback: [] }); },
 
-  getLibraries(base) {
+  async getLibraries(base) {
     const config = CONFIG.BASES[base];
-    if (!config?.hasLibraries) return Promise.resolve([]);
-    return this.fetch(`/api_library_list_${base}`, "public", { fallback: [] });
+    if (!config?.hasLibraries) return [];
+    // Get unique library MRFs from library_${base}
+    const relations = await this.fetch(`/library_${base}?select=mrf_library`, config.schema, { fallback: [] });
+    const uniqueMrfs = [...new Set(relations.map(r => r.mrf_library))];
+    if (uniqueMrfs.length === 0) return [];
+    // Fetch tag info for those MRFs
+    const mrfFilter = uniqueMrfs.map(m => `"${m}"`).join(',');
+    return this.fetch(`/${config.table}?mrf=in.(${mrfFilter})&select=mrf,alias,name_es,name_en,img_thumb_url`, config.schema, { fallback: [] });
   },
 
   async getLibraryMembers(base, libraryMrf) {