ServiceNow MCP Server

A Model Completion Protocol (MCP) server implementation for ServiceNow, allowing Claude to interact with ServiceNow instances.

Overview

This project implements an MCP server that enables Claude to connect to ServiceNow instances, retrieve data, and perform actions through the ServiceNow API. It serves as a bridge between Claude and ServiceNow, allowing for seamless integration.

Features

• Connect to ServiceNow instances using various authentication methods (Basic, OAuth, API Key)
• Query ServiceNow records and tables
• Create, update, and delete ServiceNow records
• Execute ServiceNow scripts and workflows
• Access and query the ServiceNow Service Catalog
• Analyze and optimize the ServiceNow Service Catalog
• Debug mode for troubleshooting
• Support for both stdio and Server-Sent Events (SSE) communication

Installation

Prerequisites

• Python 3.11 or higher
• A ServiceNow instance with appropriate access credentials

Setup

1. Clone this repository:
   git clone https://github.com/yourusername/servicenow-mcp.git cd servicenow-mcp
2. Create a virtual environment and install the package:
   python -m venv .venv source .venv/bin/activate # On Windows: .venv\Scripts\activate pip install -e .
3. Create a .env file with your ServiceNow credentials:
   SERVICENOW_INSTANCE_URL=https://your-instance.service-now.com SERVICENOW_USERNAME=your-username SERVICENOW_PASSWORD=your-password SERVICENOW_AUTH_TYPE=basic # or oauth, api_key

Usage

Standard (stdio) Mode

To start the MCP server:

Or with environment variables:

Server-Sent Events (SSE) Mode

The ServiceNow MCP server can also run as a web server using Server-Sent Events (SSE) for communication, which allows for more flexible integration options.

Starting the SSE Server

You can start the SSE server using the provided CLI:

By default, the server will listen on 0.0.0.0:8080. You can customize the host and port:

Connecting to the SSE Server

The SSE server exposes two main endpoints:

• /sse - The SSE connection endpoint
• /messages/ - The endpoint for sending messages to the server

Example

See the examples/sse_server_example.py file for a complete example of setting up and running the SSE server.

Tool Packaging (Optional)

To manage the number of tools exposed to the language model (especially in environments with limits), the ServiceNow MCP server supports loading subsets of tools called "packages". This is controlled via the MCP_TOOL_PACKAGE environment variable.

Configuration

1. Environment Variable: Set the MCP_TOOL_PACKAGE environment variable to the name of the desired package.
   export MCP_TOOL_PACKAGE=catalog_builder
2. Package Definitions: The available packages and the tools they include are defined in config/tool_packages.yaml. You can customize this file to create your own packages.

Behavior

• If MCP_TOOL_PACKAGE is set to a valid package name defined in config/tool_packages.yaml, only the tools listed in that package will be loaded.
• If MCP_TOOL_PACKAGE is not set or is empty, the full package (containing all tools) is loaded by default.
• If MCP_TOOL_PACKAGE is set to an invalid package name, the none package is loaded (no tools except list_tool_packages), and a warning is logged.
• Setting MCP_TOOL_PACKAGE=none explicitly loads no tools (except list_tool_packages).

Available Packages (Default)

The default config/tool_packages.yaml includes the following role-based packages:

• service_desk: Tools for incident handling and basic user/knowledge lookup.
• catalog_builder: Tools for creating and managing service catalog items, categories, variables, and related scripting (UI Policies, User Criteria).
• change_coordinator: Tools for managing the change request lifecycle, including tasks and approvals.
• knowledge_author: Tools for creating and managing knowledge bases, categories, and articles.
• platform_developer: Tools for server-side scripting (Script Includes), workflow development, and deployment (Changesets).
• system_administrator: Tools for user/group management and viewing system logs.
• full: Includes all available tools (default).
• none: Includes no tools (except list_tool_packages).

Introspection Tool

• list_tool_packages: Lists all available tool package names defined in the configuration and shows the currently loaded package. This tool is available in all packages except none.

Available Tools

Note: The availability of the following tools depends on the loaded tool package (see Tool Packaging section above). By default (full package), all tools are available.

Incident Management Tools

1. create_incident - Create a new incident in ServiceNow
2. update_incident - Update an existing incident in ServiceNow
3. add_comment - Add a comment to an incident in ServiceNow
4. resolve_incident - Resolve an incident in ServiceNow
5. list_incidents - List incidents from ServiceNow

Service Catalog Tools

1. list_catalog_items - List service catalog items from ServiceNow
2. get_catalog_item - Get a specific service catalog item from ServiceNow
3. list_catalog_categories - List service catalog categories from ServiceNow
4. create_catalog_category - Create a new service catalog category in ServiceNow
5. update_catalog_category - Update an existing service catalog category in ServiceNow
6. move_catalog_items - Move catalog items between categories in ServiceNow
7. create_catalog_item_variable - Create a new variable (form field) for a catalog item
8. list_catalog_item_variables - List all variables for a catalog item
9. update_catalog_item_variable - Update an existing variable for a catalog item
10. list_catalogs - List service catalogs from ServiceNow

Catalog Optimization Tools

1. get_optimization_recommendations - Get recommendations for optimizing the service catalog
2. update_catalog_item - Update a service catalog item

Change Management Tools

1. create_change_request - Create a new change request in ServiceNow
2. update_change_request - Update an existing change request
3. list_change_requests - List change requests with filtering options
4. get_change_request_details - Get detailed information about a specific change request
5. add_change_task - Add a task to a change request
6. submit_change_for_approval - Submit a change request for approval
7. approve_change - Approve a change request
8. reject_change - Reject a change request

Workflow Management Tools

1. list_workflows - List workflows from ServiceNow
2. get_workflow - Get a specific workflow from ServiceNow
3. create_workflow - Create a new workflow in ServiceNow
4. update_workflow - Update an existing workflow in ServiceNow
5. delete_workflow - Delete a workflow from ServiceNow

Script Include Management Tools

1. list_script_includes - List script includes from ServiceNow
2. get_script_include - Get a specific script include from ServiceNow
3. create_script_include - Create a new script include in ServiceNow
4. update_script_include - Update an existing script include in ServiceNow
5. delete_script_include - Delete a script include from ServiceNow

Changeset Management Tools

1. list_changesets - List changesets from ServiceNow with filtering options
2. get_changeset_details - Get detailed information about a specific changeset
3. create_changeset - Create a new changeset in ServiceNow
4. update_changeset - Update an existing changeset
5. commit_changeset - Commit a changeset
6. publish_changeset - Publish a changeset
7. add_file_to_changeset - Add a file to a changeset

Knowledge Base Management Tools

1. create_knowledge_base - Create a new knowledge base in ServiceNow
2. list_knowledge_bases - List knowledge bases with filtering options
3. create_category - Create a new category in a knowledge base
4. create_article - Create a new knowledge article in ServiceNow
5. update_article - Update an existing knowledge article in ServiceNow
6. publish_article - Publish a knowledge article in ServiceNow
7. list_articles - List knowledge articles with filtering options
8. get_article - Get a specific knowledge article by ID

User Management Tools

1. create_user - Create a new user in ServiceNow
2. update_user - Update an existing user in ServiceNow
3. get_user - Get a specific user by ID, username, or email
4. list_users - List users with filtering options
5. create_group - Create a new group in ServiceNow
6. update_group - Update an existing group in ServiceNow
7. add_group_members - Add members to a group in ServiceNow
8. remove_group_members - Remove members from a group in ServiceNow
9. list_groups - List groups with filtering options

UI Policy Tools

1. create_ui_policy - Creates a ServiceNow UI Policy, typically for a Catalog Item.
2. create_ui_policy_action - Creates an action associated with a UI Policy to control variable states (visibility, mandatory, etc.).

Using the MCP CLI

The ServiceNow MCP server can be installed with the MCP CLI, which provides a convenient way to register the server with Claude.

This command will register the ServiceNow MCP server with Claude and configure it to use the environment variables from the .env file.

Integration with Claude Desktop

To configure the ServiceNow MCP server in Claude Desktop:

1. Edit the Claude Desktop configuration file at ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or the appropriate path for your OS:

2. Restart Claude Desktop to apply the changes

Example Usage with Claude

Below are some example natural language queries you can use with Claude to interact with ServiceNow via the MCP server:

Incident Management Examples

• "Create a new incident for a network outage in the east region"
• "Update the priority of incident INC0010001 to high"
• "Add a comment to incident INC0010001 saying the issue is being investigated"
• "Resolve incident INC0010001 with a note that the server was restarted"
• "List all high priority incidents assigned to the Network team"
• "List all active P1 incidents assigned to the Network team."

Service Catalog Examples

• "Show me all items in the service catalog"
• "List all service catalog categories"
• "Get details about the laptop request catalog item"
• "Show me all catalog items in the Hardware category"
• "Search for 'software' in the service catalog"
• "Create a new category called 'Cloud Services' in the service catalog"
• "Update the 'Hardware' category to rename it to 'IT Equipment'"
• "Move the 'Virtual Machine' catalog item to the 'Cloud Services' category"
• "Create a subcategory called 'Monitors' under the 'IT Equipment' category"
• "Reorganize our catalog by moving all software items to the 'Software' category"
• "Create a description field for the laptop request catalog item"
• "Add a dropdown field for selecting laptop models to catalog item"
• "List all form fields for the VPN access request catalog item"
• "Make the department field mandatory in the software request form"
• "Update the help text for the cost center field"
• "Show me all service catalogs in the system"
• "List all hardware catalog items."
• "Find the catalog item for 'New Laptop Request'."
• "Show me the variables for the 'New Laptop Request' item."
• "Create a new variable named 'department_code' for the 'New Hire Setup' catalog item. Make it a mandatory string field."

Catalog Optimization Examples

• "Analyze our service catalog and identify opportunities for improvement"
• "Find catalog items with poor descriptions that need improvement"
• "Identify catalog items with low usage that we might want to retire"
• "Find catalog items with high abandonment rates"
• "Optimize our Hardware category to improve user experience"

Change Management Examples

• "Create a change request for server maintenance to apply security patches tomorrow night"
• "Schedule a database upgrade for next Tuesday from 2 AM to 4 AM"
• "Add a task to the server maintenance change for pre-implementation checks"
• "Submit the server maintenance change for approval"
• "Approve the database upgrade change with comment: implementation plan looks thorough"
• "Show me all emergency changes scheduled for this week"
• "List all changes assigned to the Network team"
• "Create a normal change request to upgrade the production database server."
• "Update change CHG0012345, set the state to 'Implement'."

Workflow Management Examples

• "Show me all active workflows in ServiceNow"
• "Get details about the incident approval workflow"
• "List all versions of the change request workflow"
• "Show me all activities in the service catalog request workflow"
• "Create a new workflow for handling software license requests"
• "Update the description of the incident escalation workflow"
• "Activate the new employee onboarding workflow"
• "Deactivate the old password reset workflow"
• "Add an approval activity to the software license request workflow"
• "Update the notification activity in the incident escalation workflow"
• "Delete the unnecessary activity from the change request workflow"
• "Reorder the activities in the service catalog request workflow"

Changeset Management Examples

• "List all changesets in ServiceNow"
• "Show me all changesets created by developer 'john.doe'"
• "Get details about changeset 'sys_update_set_123'"
• "Create a new changeset for the 'HR Portal' application"
• "Update the description of changeset 'sys_update_set_123'"
• "Commit changeset 'sys_update_set_123' with message 'Fixed login issue'"
• "Publish changeset 'sys_update_set_123' to production"
• "Add a file to changeset 'sys_update_set_123'"
• "Show me all changes in changeset 'sys_update_set_123'"

Knowledge Base Examples

• "Create a new knowledge base for the IT department"
• "List all knowledge bases in the organization"
• "Create a category called 'Network Troubleshooting' in the IT knowledge base"
• "Write an article about VPN setup in the Network Troubleshooting category"
• "Update the VPN setup article to include mobile device instructions"
• "Publish the VPN setup article so it's visible to all users"
• "List all articles in the Network Troubleshooting category"
• "Show me the details of the VPN setup article"
• "Find knowledge articles containing 'password reset' in the IT knowledge base"
• "Create a subcategory called 'Wireless Networks' under the Network Troubleshooting category"

User Management Examples

• "Create a new user Dr. Alice Radiology in the Radiology department"
• "Update Bob's user record to make him the manager of Alice"
• "Assign the ITIL role to Bob so he can approve change requests"
• "List all users in the Radiology department"
• "Create a new group called 'Biomedical Engineering' for managing medical devices"
• "Add an admin user to the Biomedical Engineering group as a member"
• "Update the Biomedical Engineering group to change its manager"
• "Remove a user from the Biomedical Engineering group"
• "Find all active users in the system with 'doctor' in their title"
• "Create a user that will act as an approver for the Radiology department"
• "List all IT support groups in the system"

UI Policy Examples

• "Create a UI policy for the 'Software Request' item (sys_id: abc...) named 'Show Justification' that applies when 'software_cost' is greater than 100."
• "For the UI policy 'Show Justification' (sys_id: def...), add an action to make the 'business_justification' variable visible and mandatory."
• "Create another action for policy 'Show Justification' to hide the 'alternative_software' variable."

Example Scripts

The repository includes example scripts that demonstrate how to use the tools:

• examples/catalog_optimization_example.py: Demonstrates how to analyze and improve the ServiceNow Service Catalog
• examples/change_management_demo.py: Shows how to create and manage change requests in ServiceNow

Authentication Methods

Basic Authentication

OAuth Authentication

API Key Authentication

Development

Documentation

Additional documentation is available in the docs directory:

• Catalog Integration - Detailed information about the Service Catalog integration
• Catalog Optimization - Detailed plan for catalog optimization features
• Change Management - Detailed information about the Change Management tools
• Workflow Management - Detailed information about the Workflow Management tools
• Changeset Management - Detailed information about the Changeset Management tools

Troubleshooting

Common Errors with Change Management Tools

1. Error: argument after ** must be a mapping, not CreateChangeRequestParams
   • This error occurs when you pass a CreateChangeRequestParams object instead of a dictionary to the create_change_request function.
   • Solution: Make sure you're passing a dictionary with the parameters, not a Pydantic model object.
   • Note: The change management tools have been updated to handle this error automatically. The functions will now attempt to unwrap parameters if they're incorrectly wrapped or passed as a Pydantic model object.
2. Error: Missing required parameter 'type'
   • This error occurs when you don't provide all required parameters for creating a change request.
   • Solution: Make sure to include all required parameters. For create_change_request, both short_description and type are required.
3. Error: Invalid value for parameter 'type'
   • This error occurs when you provide an invalid value for the type parameter.
   • Solution: Use one of the valid values: "normal", "standard", or "emergency".
4. Error: Cannot find get_headers method in either auth_manager or server_config
   • This error occurs when the parameters are passed in the wrong order or when using objects that don't have the required methods.
   • Solution: Make sure you're passing the auth_manager and server_config parameters in the correct order. The functions have been updated to handle parameter swapping automatically.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.