diff --git a/src/api/json/catalog.json b/src/api/json/catalog.json
index 5d88b60bd5a..34fdc6c39cf 100644
--- a/src/api/json/catalog.json
+++ b/src/api/json/catalog.json
@@ -65,6 +65,12 @@
       "fileMatch": ["accelerator.yaml"],
       "url": "https://www.schemastore.org/accelerator.json"
     },
+    {
+      "name": "Applicant Profile Protocol",
+      "description": "Structured JSON format for professional profiles, resumes, and CVs with skills, experience, education, and certifications",
+      "fileMatch": ["*.app.json"],
+      "url": "https://app-protocol.org/schema/app-1.0.json"
+    },
     {
       "name": "gRPC API Gateway & OpenAPI Config",
       "description": "Config file for gRPC API Gateway & OpenAPI v3.1 generation",