Model Context Protocol (MCP) has become the standard way to expose tools to AI agents.

With Azure Logic Apps , you can create and run multiple MCP servers and let an agent consume them together — cleanly and modularly.

In this post, we'll build:

A Basic Arithmetic MCP server

An Extended Arithmetic MCP server

And connect an agent to both

The Scenario

We'll create two MCP servers using Logic App workflows and expose them to an agent.

Both servers share Anonymous authentication .

Step 1 — Create and Group MCP Workflows in Logic Apps

Each operation is implemented as a Logic App workflow and exposed as an MCP tool.

Each workflow:

Accepts inputs (typically two numbers and an operation)

Executes the required logic

Returns a structured response

You then group these workflows into MCP servers:

Basic Arithmetic Server

Add

Subtract

Multiply

Divide

Extended Arithmetic Server

Power

Square Root

Modulo

How This Is Stored (mcpservers.json)

Once workflows are grouped into MCP servers, the…