diff --git a/metagpt/tools/azure_tts.py b/metagpt/tools/azure_tts.py
index 19d7c2ab1..035a85108 100644
--- a/metagpt/tools/azure_tts.py
+++ b/metagpt/tools/azure_tts.py
@@ -61,8 +61,8 @@ class AzureTTS:
 
 
 # Export
-def openapi_azsure_tts(text, lang="", voice="", style="", role="", subscription_key="", region=""):
-    """openapi/tts/azsure
+def oas3_azsure_tts(text, lang="", voice="", style="", role="", subscription_key="", region=""):
+    """oas3/tts/azsure
     For more details, check out:`https://learn.microsoft.com/en-us/azure/ai-services/speech-service/language-support?tabs=tts`
 
     :param lang: The value can contain a language code such as en (English), or a locale such as en-US (English - United States). For more details, checkout: `https://learn.microsoft.com/en-us/azure/ai-services/speech-service/language-support?tabs=tts`
diff --git a/metagpt/tools/metagpt_openapi_svc.py b/metagpt/tools/metagpt_oas3_api_svc.py
similarity index 77%
rename from metagpt/tools/metagpt_openapi_svc.py
rename to metagpt/tools/metagpt_oas3_api_svc.py
index 94d935625..921629d8c 100644
--- a/metagpt/tools/metagpt_openapi_svc.py
+++ b/metagpt/tools/metagpt_oas3_api_svc.py
@@ -3,8 +3,8 @@
 """
 @Time    : 2023/8/17
 @Author  : mashenquan
-@File    : metagpt_openapi_svc.py
-@Desc    : MetaGPT OpenAPI REST API service
+@File    : metagpt_oas3_api_svc.py
+@Desc    : MetaGPT OpenAPI Specification 3.0 REST API service
 """
 from pathlib import Path
 import sys
@@ -16,5 +16,5 @@ if __name__ == "__main__":
     initalize_enviroment()
 
     app = connexion.AioHttpApp(__name__, specification_dir='../../spec/')
-    app.add_api("metagpt_openapi.yaml")
+    app.add_api("metagpt_oas3_api.yaml")
     app.run(port=8080)
diff --git a/spec/metagpt_openapi.yaml b/spec/metagpt_oas3_api.yaml
similarity index 96%
rename from spec/metagpt_openapi.yaml
rename to spec/metagpt_oas3_api.yaml
index 0bb6ae7bf..5a3e6923b 100644
--- a/spec/metagpt_openapi.yaml
+++ b/spec/metagpt_oas3_api.yaml
@@ -4,14 +4,14 @@ info:
   title: "MetaGPT Export OpenAPIs"
   version: "1.0"
 servers:
-  - url: "/openapi"
+  - url: "/oas3"
 
 paths:
   /tts/azsure:
     post:
       summary: "Convert Text to Base64-encoded .wav File Stream"
       description: "For more details, check out: [Azure Text-to_Speech](https://learn.microsoft.com/en-us/azure/ai-services/speech-service/language-support?tabs=tts)"
-      operationId: azure_tts.openapi_azsure_tts
+      operationId: azure_tts.oas3_azsure_tts
       requestBody:
         required: true
         content: