chore: import upstream snapshot with attribution

examples/snippets/servers/streamable_http_multiple_servers.py

@@ -0,0 +1,48 @@
+"""Example showing how to mount multiple StreamableHTTP servers with path configuration.
+
+Run from the repository root:
+    uvicorn examples.snippets.servers.streamable_http_multiple_servers:app --reload
+"""
+
+import contextlib
+
+from starlette.applications import Starlette
+from starlette.routing import Mount
+
+from mcp.server.mcpserver import MCPServer
+
+# Create multiple MCP servers
+api_mcp = MCPServer("API Server")
+chat_mcp = MCPServer("Chat Server")
+
+
+@api_mcp.tool()
+def api_status() -> str:
+    """Get API status"""
+    return "API is running"
+
+
+@chat_mcp.tool()
+def send_message(message: str) -> str:
+    """Send a chat message"""
+    return f"Message sent: {message}"
+
+
+# Create a combined lifespan to manage both session managers
+@contextlib.asynccontextmanager
+async def lifespan(app: Starlette):
+    async with contextlib.AsyncExitStack() as stack:
+        await stack.enter_async_context(api_mcp.session_manager.run())
+        await stack.enter_async_context(chat_mcp.session_manager.run())
+        yield
+
+
+# Mount the servers with transport-specific options passed to streamable_http_app()
+# streamable_http_path="/" means endpoints will be at /api and /chat instead of /api/mcp and /chat/mcp
+app = Starlette(
+    routes=[
+        Mount("/api", app=api_mcp.streamable_http_app(json_response=True, streamable_http_path="/")),
+        Mount("/chat", app=chat_mcp.streamable_http_app(json_response=True, streamable_http_path="/")),
+    ],
+    lifespan=lifespan,
+)