feat: support stateless mcp

src/mcp_template_python/__main__.py

@@ -76,6 +76,7 @@ def main(
         if selected_mcp is None:
             click.echo(f"Error: MCP '{mcp}' not found.", err=True)
             sys.exit(1)
+        assert selected_mcp is not None
         selected_mcp.run()
     else:
         run_server(

src/mcp_template_python/app/math.py

@@ -13,6 +13,7 @@ mcp = FastMCP(
         allowed_origins=settings.cors.allow_origins.split(","),
         enable_dns_rebinding_protection=settings.mcp.enable_dns_rebinding_protection,
     ),
+    stateless_http=settings.mcp.stateless_http,
 )
 
 

src/mcp_template_python/config/mcp.py

@@ -14,17 +14,20 @@ class MCPSettings(BaseSettings):
     default_mcp: str = "math"
     """Default MCP to be used by the application."""
 
+    stateless_http: bool = True
+    """Whether the MCP server should operate in stateless mode."""
+
     instructions: str | None = None
     """Instructions to be used by the MCP server, defaults to None."""
 
     enable_helpers_router: bool = True
     """Enable the helpers router for the MCP server."""
 
-    enable_sse: bool = True
+    enable_sse: bool = False
     """Enable Server-Sent Events (SSE) for the MCP server."""
 
     enable_streamable_http: bool = True
     """Enable streamable HTTP for the MCP server."""
 
-    enable_dns_rebinding_protection: bool = True
+    enable_dns_rebinding_protection: bool = False
     """Enable DNS rebinding protection for MCP server."""

src/mcp_template_python/server.py

@@ -25,7 +25,7 @@ app = FastAPI(
 )
 
 app.add_middleware(
-    CORSMiddleware,
+    CORSMiddleware,  # type: ignore[arg-type]
     allow_origins=settings.cors.allow_origins.split(","),
     allow_credentials=settings.cors.allow_credentials,
     allow_methods=settings.cors.allow_methods.split(","),