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Keycloak MCP Server

by HaithamOumerzoug
npmGitHub
TypeScript
MIT License
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Keycloak MCP

A Model Context Protocol (MCP) server implementation for Keycloak, providing a standardized interface for managing Keycloak users and realms.

Description

This project implements an MCP server that integrates with Keycloak, allowing you to manage Keycloak users and realms through a standardized protocol. It uses the official Keycloak Admin Client to interact with Keycloak's API.

Feature Demo

https://github.com/user-attachments/assets/4b02a049-b8d6-4cc5-a7b4-564a0e758dd8

Available Tools

create-user

Creates a new user in a specified realm.

Inputs:

  • realm: The realm name
  • username: Username for the new user
  • email: Email address for the user
  • firstName: User's first name
  • lastName: User's last name

delete-user

Deletes a user from a specified realm.

Inputs:

  • realm: The realm name
  • userId: The ID of the user to delete

list-realms

Lists all available realms.

list-users

Lists all users in a specified realm.

Inputs:

  • realm: The realm name

list-clients

Lists all clients in a specified realm.

Inputs:

  • realm: The realm name

list-groups

Lists all groups in a specified realm.

Inputs:

  • realm: The realm name

list-client-roles

Lists all roles for a specific client in a realm.

Inputs:

  • realm: The realm name
  • clientUniqueId: The unique ID of the client

assign-client-role-to-user

Assigns a client role to a specific user.

Inputs:

  • realm: The realm name
  • userId: The ID of the user
  • clientUniqueId: The unique ID of the client
  • roleName: The name of the role to assign

add-user-to-group

Adds a user to a specific group.

Inputs:

  • realm: The realm name
  • userId: The ID of the user
  • groupId: The ID of the group

Prerequisites

  • Node.js (Latest LTS version recommended)
  • npm
  • A running Keycloak instance

Installation

Installing via Smithery

To install keycloak-mcp for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @HaithamOumerzoug/keycloak-mcp --client claude

Installing via NPM

The server is available as an NPM package:

# Direct usage with npx npx -y keycloak-mcp # Or global installation npm install -g keycloak-mcp

Configuration

Using NPM Package

Configure the server in your Cursor IDE, Cline or Claude Desktop MCP configuration file:

{ "mcpServers": { "keycloak": { "command": "npx", "args": ["-y", "keycloak-mcp"], "env": { "KEYCLOAK_URL": "http://localhost:8080", "KEYCLOAK_ADMIN": "admin", "KEYCLOAK_ADMIN_PASSWORD": "admin" } } } }

For Local Development

{ "mcpServers": { "keycloak": { "command": "node", "args": ["path/to/dist/index.js"], "env": { "KEYCLOAK_URL": "http://localhost:8080", "KEYCLOAK_ADMIN": "admin", "KEYCLOAK_ADMIN_PASSWORD": "admin" } } } }

Development

To set up the development environment:

  1. Clone the repository
  2. Install dependencies:
    npm install
  3. Build the project:
    npm run build
  4. Start the project:
    npm run watch

Available Scripts

  • npm run build - Builds the project and makes the CLI executable
  • npm run prepare - Runs the build script (used during package installation)
  • npm run watch - Watches for changes and rebuilds automatically

Dependencies

Main Dependencies

  • @keycloak/keycloak-admin-client - Official Keycloak Admin Client
  • @modelcontextprotocol/sdk - MCP SDK for standardized protocol implementation
  • zod - TypeScript-first schema validation

Dev Dependencies

  • typescript - For TypeScript support
  • @types/node - TypeScript definitions for Node.js
  • shx - Cross-platform shell commands

License

MIT

Author

OUMERZOUG Haitham

Install Server
A
security – no known vulnerabilities
A
license - permissive license
A
quality - confirmed to work

How are these scores calculated?

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Tools

View all tools

A Model Context Protocol server that enables management of Keycloak users and realms through a standardized interface, providing tools for user creation, deletion, role assignment, and group management.

  1. Description
    1. Feature Demo
      1. Available Tools
        1. create-user
        2. delete-user
        3. list-realms
        4. list-users
        5. list-clients
        6. list-groups
        7. list-client-roles
        8. assign-client-role-to-user
        9. add-user-to-group
      2. Prerequisites
        1. Installation
          1. Installing via Smithery
          2. Installing via NPM
        2. Configuration
          1. Using NPM Package
          2. For Local Development
        3. Development
          1. Available Scripts
        4. Dependencies
          1. Main Dependencies
          2. Dev Dependencies
        5. License
          1. Author

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