This article explains the authentication and authorization processes for Model Context Protocol (MCP) servers, focusing on the transport methods used, particularly standard input/output and streamable HTTP. It details how to secure remote MCP servers using OAuth 2.1 and emphasizes the importance of proper authorization for different types of clients.

asyncmcp is an implementation of the MCP protocol that enhances asynchronous communication between clients and servers by utilizing various transport layers like AWS SQS, webhooks, and hybrid methods. It allows for non-blocking requests by directing them to internal queues, facilitating efficient processing without the need for immediate responses. The project offers comprehensive documentation, installation guides, and examples for developers looking to integrate async capabilities into their applications.