**Making OAuth Scale Securely for MCPs - Aaron Parecki - ASW #360**

As we continue to push the boundaries of interconnected systems, one concern has loomed large: the security of these complex networks. The Multi-Party Computation (MCP) standard was designed to enable seamless interactions between agents, but it also introduced a new set of challenges – specifically when it comes to API access and data control. In this episode of ASW #360, Aaron Parecki joins us to discuss how OAuth's new Client ID Metadata Documents spec provides an essential layer of security for MCPs.

The dream of interconnected agents is undeniably alluring. Imagine a world where systems can effortlessly communicate with one another, sharing data and resources in real-time. But this vision also raises unsettling questions: what happens when these agents are granted unfettered access to APIs, data, and local systems? The potential for chaos and security breaches is vast.

Aaron Parecki, a leading expert in the field of OAuth and API security, has been working tirelessly to address this concern. In collaboration with the IETF, he has developed a new spec: Client ID Metadata Documents. This innovative solution provides MCPs with an additional layer of protection against malicious activity – ensuring that even if an agent gains unauthorized access, it will be unable to exploit sensitive data.

So why did MCPs require this new specification? According to Parecki, the design and behavior of these interconnected systems necessitated a more robust approach to security. "The traditional OAuth flow," he explains, "was not designed with MCPs in mind." As such, the introduction of Client ID Metadata Documents fills a critical gap in the existing framework.

For those interested in exploring this topic further, we've included some valuable resources below:

For the latest episodes of ASW, including this discussion with Aaron Parecki, please visit our website at securityweekly.com/asw.

Thanks to all who tune in! Join us next time for more thought-provoking conversations on security and technology.