diff --git a/config/config2.yaml.example b/config/config2.yaml.example
index 7c523fe7d..763412542 100644
--- a/config/config2.yaml.example
+++ b/config/config2.yaml.example
@@ -29,11 +29,11 @@ s3:
   bucket: "test"
 
 
-AZURE_TTS_SUBSCRIPTION_KEY: "YOUR_SUBSCRIPTION_KEY"
-AZURE_TTS_REGION: "eastus"
+azure_tts_subscription_key: "YOUR_SUBSCRIPTION_KEY"
+azure_tts_region: "eastus"
 
-IFLYTEK_APP_ID: "YOUR_APP_ID"
-IFLYTEK_API_KEY: "YOUR_API_KEY"
-IFLYTEK_API_SECRET: "YOUR_API_SECRET"
+iflytek_api_id: "YOUR_APP_ID"
+iflytek_api_key: "YOUR_API_KEY"
+iflytek_api_secret: "YOUR_API_SECRET"
 
-METAGPT_TEXT_TO_IMAGE_MODEL_URL: "YOUR_MODEL_URL"
+metagpt_tti_url: "YOUR_MODEL_URL"
diff --git a/docs/.well-known/metagpt_oas3_api.yaml b/docs/.well-known/metagpt_oas3_api.yaml
index 0a702e8b6..720e4a41a 100644
--- a/docs/.well-known/metagpt_oas3_api.yaml
+++ b/docs/.well-known/metagpt_oas3_api.yaml
@@ -247,7 +247,7 @@ paths:
           description: "Model url."
       required:
         allOf:
-          - METAGPT_TEXT_TO_IMAGE_MODEL_URL
+          - metagpt_tti_url
     post:
       summary: "Text to Image"
       description: "Generate an image from the provided text using the MetaGPT Text-to-Image API."
diff --git a/docs/.well-known/skills.yaml b/docs/.well-known/skills.yaml
index c19a9501e..a14571926 100644
--- a/docs/.well-known/skills.yaml
+++ b/docs/.well-known/skills.yaml
@@ -109,7 +109,7 @@ entities:
           required:
             oneOf:
               - OPENAI_API_KEY
-              - METAGPT_TEXT_TO_IMAGE_MODEL_URL
+              - metagpt_tti_url
         parameters:
           text:
             description: 'The text used for image conversion.'
diff --git a/tests/metagpt/actions/test_skill_action.py b/tests/metagpt/actions/test_skill_action.py
index 2ebe79b30..d667d6d70 100644
--- a/tests/metagpt/actions/test_skill_action.py
+++ b/tests/metagpt/actions/test_skill_action.py
@@ -23,9 +23,9 @@ class TestSkillAction:
                     "type": "string",
                     "description": "OpenAI API key, For more details, checkout: `https://platform.openai.com/account/api-keys`",
                 },
-                "METAGPT_TEXT_TO_IMAGE_MODEL_URL": {"type": "string", "description": "Model url."},
+                "metagpt_tti_url": {"type": "string", "description": "Model url."},
             },
-            "required": {"oneOf": ["OPENAI_API_KEY", "METAGPT_TEXT_TO_IMAGE_MODEL_URL"]},
+            "required": {"oneOf": ["OPENAI_API_KEY", "metagpt_tti_url"]},
         },
         parameters={
             "text": Parameter(type="string", description="The text used for image conversion."),