Update .gitignore to include .env, modify app.py to load API key from environment variables, and update requirements.txt to add requests and python-dotenv.

.gitignore

@@ -1,2 +1,3 @@
 .venv/
-*.un~
+*.un~
+.env

app.py

@@ -1,7 +1,14 @@
 import gradio as gr
 import requests
+import os
+from dotenv import load_dotenv
 
-def brave_search(query, api_key):
+load_dotenv()
+
+def brave_search(query):
+    api_key = os.getenv("BRAVE_API_KEY")
+    if not api_key:
+        return "Brave APIキーが環境変数に設定されていません。"
     url = "https://api.search.brave.com/res/v1/web/search"
     headers = {
         "Accept": "application/json",
@@ -25,11 +32,10 @@ def brave_search(query, api_key):
 
 with gr.Blocks() as demo:
     gr.Markdown("# Brave API 検索アプリ")
-    api_key = gr.Textbox(label="Brave APIキー", type="password")
     query = gr.Textbox(label="検索クエリ")
     output = gr.Textbox(label="検索結果", lines=10)
     search_btn = gr.Button("検索")
-    search_btn.click(fn=brave_search, inputs=[query, api_key], outputs=output)
+    search_btn.click(fn=brave_search, inputs=[query], outputs=output)
 
 if __name__ == "__main__":
-    demo.launch(mcp_server=True)
+    demo.launch(mcp_server=Tre)

requirements.txt

@@ -1,2 +1,5 @@
 gradio[mcp]
 numpy
+requests
+python-dotenv
+mcp