# MCP Gateway

Source: https://customlabs.io/glossary/mcp-gateway/
Updated: 2026-09-13

Agents

# MCP Gateway

An MCP gateway is a shared layer in front of several MCP servers, centralizing controls.

Those controls include token brokering, per-call logging, quotas, and an allowlist of reachable servers.

It is a genuine convenience and a genuine risk in the same design.

A gateway that forwards one broad credential unchanged is exactly the confused-deputy shape it should prevent.

[MCP in Production](https://customlabs.io/mcp/)[Architectures: Model gateway](https://customlabs.io/architectures/model-gateway/)

[← Back to the full glossary](https://customlabs.io/glossary/)

## Related terms

[Model Context Protocol (MCP) MCP is an open standard for connecting LLM applications to tools and data sources.](https://customlabs.io/glossary/model-context-protocol/)[Confused Deputy A confused deputy is a component tricked into using more authority than a request deserves.](https://customlabs.io/glossary/confused-deputy/)[Tool Poisoning Tool poisoning hides an instruction in a tool's description that the model reads as legitimate.](https://customlabs.io/glossary/tool-poisoning/)

## More in Agents

[Agent (Agentic AI) An agent is an LLM given a loop, memory, and tools it can call.](https://customlabs.io/glossary/agent/)[Tool Calling Tool calling lets a model request a structured action instead of only generating text.](https://customlabs.io/glossary/tool-calling/)[Context Engineering Context engineering decides what occupies a model's context window at every step, and in what order.](https://customlabs.io/glossary/context-engineering/)[Tool Contract A tool contract is the schema a tool exposes to a model.](https://customlabs.io/glossary/tool-contract/)