diff --git a/api/apps/services/provider_api_service.py b/api/apps/services/provider_api_service.py
index 0663eac7ec..110961ea7d 100644
--- a/api/apps/services/provider_api_service.py
+++ b/api/apps/services/provider_api_service.py
@@ -25,7 +25,7 @@ from api.db.joint_services.tenant_model_service import get_model_config_from_pro
 from api.db.services.tenant_model_provider_service import TenantModelProviderService
 from api.db.services.tenant_model_instance_service import TenantModelInstanceService
 from api.db.services.tenant_model_service import TenantModelService
-from rag.llm import ChatModel, EmbeddingModel, ModelMeta, OcrModel, RerankModel
+from rag.llm import ChatModel, EmbeddingModel, ModelMeta, OcrModel, RerankModel, TTSModel
 
 
 def _to_int(v, default=500):
@@ -402,7 +402,7 @@ async def verify_api_key(provider_name: str, api_key: str|dict, base_url: str=No
             return False, f"No valid models found for provider '{provider_name}'"
 
     # test if api key works
-    chat_passed, embd_passed, rerank_passed, ocr_passed = False, False, False, False
+    chat_passed, embd_passed, rerank_passed, ocr_passed, tts_passed = False, False, False, False, False
     timeout_seconds = int(os.environ.get("LLM_TIMEOUT_SECONDS", 10))
     extra = {"provider": provider_name}
     msg = ""
@@ -496,11 +496,31 @@ async def verify_api_key(provider_name: str, api_key: str|dict, base_url: str=No
                     llm["llm_name"],
                 )
                 msg += f"\nFail to access model({provider_name}/{llm['llm_name']})." + str(e)
-        if any([embd_passed, chat_passed, rerank_passed, ocr_passed]):
+        elif not tts_passed and LLMType.TTS.value in model_types:
+            assert provider_name in TTSModel, f"TTS model from {provider_name} is not supported yet."
+            mdl = TTSModel[provider_name](key=api_key_str, model_name=llm["llm_name"], base_url=base_url)
+            try:
+                def drain_tts():
+                    for _ in mdl.tts("Hello~ RAGFlower!"):
+                        pass
+
+                await asyncio.wait_for(
+                    asyncio.to_thread(drain_tts),
+                    timeout=timeout_seconds,
+                )
+                tts_passed = True
+            except Exception as e:
+                logging.exception(
+                    "Fail to access TTS model for provider=%s model=%s",
+                    provider_name,
+                    llm["llm_name"],
+                )
+                msg += f"\nFail to access model({provider_name}/{llm['llm_name']})." + str(e)
+        if any([embd_passed, chat_passed, rerank_passed, ocr_passed, tts_passed]):
             msg = ""
             break
 
-    success = any([embd_passed, chat_passed, rerank_passed, ocr_passed])
+    success = any([embd_passed, chat_passed, rerank_passed, ocr_passed, tts_passed])
     return success, "success" if success else msg