What Is an MCP Gateway? A Plain Guide for 2026
An MCP gateway is a single endpoint that sits between your AI agent and all the MCP servers it uses. Instead of the agent connecting to each server directly, it talks to one gateway, which handles discovery, routing, authentication, and execution in one place.
The problem it solves
Without a gateway, every agent manages its own connection to every MCP server. That means fragmented authentication, duplicated setup, no central view of usage, and a full tool catalog from each server loaded into context on every turn. It is the same mess that microservices had before API gateways existed.
What an MCP gateway does
| Function | Without a gateway | With a gateway |
|---|---|---|
| Connection | One per server, managed by the agent | One endpoint for everything |
| Tool discovery | Every schema loaded every turn | Served on demand |
| Authentication | Configured per server | Centralized |
| Visibility | Scattered or none | One place to see usage |
MCP gateway vs raw MCP
Raw MCP works fine for one or two servers. It stops scaling the moment you add more: context fills with tool definitions, credentials multiply, and you lose any single view of what your agent is doing. A gateway is what makes MCP hold up past a handful of connections.
Where memory comes in
A plain gateway routes traffic. A gateway with a memory layer also remembers, so it can serve only the tools a task needs, recall past results, and carry context across sessions. That is the difference between routing and not forgetting, and it is where the token savings live.
What Tulimoa is
Tulimoa is an MCP gateway with a memory layer. It federates your servers behind one endpoint and remembers context across sessions, so your agent loads less and repeats itself less. It is in early beta and EU hosted in Frankfurt: the memory layer that shrinks your token bill.
Frequently asked questions
What is an MCP gateway in one sentence?
A single endpoint that federates multiple MCP servers, so your agent connects, authenticates, and discovers tools in one place instead of many.
Do I need an MCP gateway?
For one or two servers, no. Once you connect several, a gateway prevents context bloat, scattered credentials, and blind spots in usage.
What is the difference between an MCP gateway and an MCP server?
A server exposes one set of tools. A gateway sits in front of many servers and presents them as one, adding routing, auth, and, with a memory layer, persistence.