Update server.py

server.py

@@ -3,7 +3,7 @@ import uvicorn
 
 from mcp.server.fastmcp import FastMCP
 from starlette.requests import Request
-from starlette.responses import JSONResponse, Response
+from starlette.responses import PlainTextResponse, Response
 
 from langchain_community.utilities import SQLDatabase
 from langchain_community.tools.sql_database.tool import QuerySQLCheckerTool
@@ -19,19 +19,23 @@ llm = ChatOpenAI(
 # Create an MCP server
 mcp = FastMCP("Credit Card Database Server")
 
-
 credit_card_db = SQLDatabase.from_uri(r"sqlite:///data/ccms.db")
 query_checker_tool = QuerySQLCheckerTool(db=credit_card_db, llm=llm)
 
+
 @mcp.custom_route("/", methods=["GET"])
-async def home(request: Request) -> Response:
-    return JSONResponse(
-        status_code=200,
-        content={
-            "message": "This is an MCP server that interfaces with a credit card database"
-        }
-    )
-    
+async def home(request: Request) -> PlainTextResponse:
+    return PlainTextResponse(
+        "Credit Card Database Server"
+        "\n----\n"
+        "This server gives you access to the following tools:" \
+        "\n----\n" \
+        "sql_db_list_tables\n" \
+        "sql_db_schema\n" \
+        "sql_db_query_checker\n" \
+        "sql_db_query"
+    )    
+
 
 @mcp.tool()
 def sql_db_list_tables():