A gateway is a device (usually instantiated in software) that fronts both types of services. Handles authentication, rate limiting, logging, monitoring, and access control. As the use of MCP increases, organizations need to understand which AI tools are requesting data from which systems, what data they are allowed to access, and what actions they can take on that data. Gateways can create locations to manage these types of controls.
However, because they operate at the network layer (arbitrating and recording data movement), they do not solve problems arising from the software layer (including LLM, deterministic code, or user activity). In cybersecurity terminology, a firewall can be thought of as a firewall. While useful in certain situations, they can be circumvented, like firewalls, and can be a single point of failure, giving a false sense of security. MCPs and API gateways are likely perimeter defenses and cannot reliably prevent data-related incidents. These can be caused by software, either through deterministic “traditional” code or LLM.
(Image source: Pixabay under license)
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