Configure MCP Client in ServiceNow

Pre-requisites

Midserver to run the mcp client, mcp server and ollama service to access llama 3.2 model

Install ServiceNow spoke which has the action to execute mcp client

Github repo which has required powershell scripts : anilvaranasi/nowmcpclientfiles

Github repo for scoped app : anilvaranasi/nowmcpclient

Midserver configuration

Install python to run MCP server and client.

Install Ollama to run llama3.2 model by running the command

Download files from gitrepo anilvaranasi/nowmcpclientfiles and upload to midserver in folder C:\mcp

Ollama server

Ensure that Ollama is up and running and it has llama3.2 model

ollama run llama3.2

MCP Server

Test MCP server by running the command python c:\mcp\server.py

MCP Client

Once MCP server is up and running and when it being called by MCP client by running the command python langchain_client2.py

ServiceNow configuration

Scoped app

MCP client is scoped app that contains required code base

ServiceNow Spoke Action

MCP Client

MCP client is called via Power shell action from ServiceNow.

Script output is sent as response to action

Virtual agent topic

Testing

Test the spoke

Test from action to check for connectivity and execution

MCP server

Test virtual agent

References:

https://medium.com/the-ai-forum/understanding-the-mcp-workflow-building-a-local-mcp-client-using-ollama-and-langchain-mcp-5997b8a5fded -> Original source code is taken from here