external-idp-integration

Configure MCP server authentication with external identity providers via OIDC/OAuth 2.1.

47|5|Updated Apr 25, 2026

Search Tags:#security #authentication #oauth #mcp #identity #oidc #idp

Ready to run

npx skills add https://github.com/RedHatProductSecurity/prodsec-skills --skill external-idp-integration

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: external-idp-integration
Source: https://github.com/RedHatProductSecurity/prodsec-skills/tree/main/module/skills/external-idp-integration
Command: npx skills add https://github.com/RedHatProductSecurity/prodsec-skills --skill external-idp-integration

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill facilitates MCP server integration with external centralized identity providers, enabling seamless and secure user authentication and authorization.

Core Features & Use Cases

Standard Protocol Support: Enables MCP servers to delegate identity management to external IdPs like Keycloak via OIDC/OAuth 2.1.
Configuration Flexibility: Supports configuring multiple IdP issuer URLs with discovery via standard metadata endpoints.
Use Case: When building or reviewing MCP server setups, security engineers can verify proper external IdP integration to ensure robust authentication, such as integrating with Keycloak for enterprise federation.

Quick Start

Review the YAML configuration example to connect your MCP server to an external IdP.

Frequently Asked Questions about external-idp-integration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I integrate an MCP server with Keycloak for authentication?▼

To integrate an MCP server with Keycloak, you delegate identity management to the external IdP using OIDC and OAuth 2.1 standards, referencing configuration YAML for discovery and token validation.

What is external IdP integration for MCP servers?▼

External IdP integration connects MCP servers to centralized identity providers like Keycloak, delegating secure user authentication and authorization via standard protocols instead of managing credentials locally.

Can I configure multiple identity provider issuer URLs for a single MCP server?▼

Yes, you can configure multiple identity provider issuer URLs for an MCP server. The integration supports discovering and validating tokens across several external IdPs simultaneously for enterprise federation.

How do I validate OAuth tokens from an external identity provider?▼

You validate OAuth tokens by configuring the MCP server to use standard metadata discovery endpoints provided by the external IdP, ensuring standards-compliant authorization and proper token management.

Does MCP server authentication support OAuth 2.1 and OIDC protocols?▼

Yes, MCP server authentication supports OAuth 2.1 and OIDC protocols. This enables servers to delegate identity management to external IdPs for secure, standards-compliant user authorization.

What are the limitations of using external identity providers with MCP servers?▼

Using external identity providers requires proper configuration of discovery endpoints and token validation. Security engineers must ensure the external IdP complies with OAuth 2.1 standards for robust authentication.