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MCP Authentication

Implement OAuth 2.1 and API key authentication for OpenAI Apps SDK MCP servers.

Updated Aug 27, 2026
Search Tags:#security#authentication#oauth#mcp#api key#openai
One-click install
npx skills add https://github.com/mberto10/mberto-compound --skill mcp-authentication
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: MCP Authentication
Source: https://github.com/mberto10/mberto-compound/tree/main/plugins/openai-apps-sdk/skills/mcp-authentication
Command: npx skills add https://github.com/mberto10/mberto-compound --skill mcp-authentication

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides guidance and implementation patterns for securing OpenAI Apps SDK MCP servers, ensuring only authorized users and applications can access protected resources.

Core Features & Use Cases

  • OAuth 2.1 Implementation: Detailed examples for setting up authorization code flows.
  • API Key Authentication: Simple and header-based methods for API key validation.
  • Token Handling: Demonstrates how to access and validate authentication tokens within tool handlers.
  • Use Case: Secure a custom MCP server that provides user-specific data by implementing OAuth 2.1, ensuring only authenticated users can access their profiles.

Quick Start

Use the mcp-authentication skill to implement OAuth 2.1 for your MCP server.

Frequently Asked Questions about MCP Authentication

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

FAQPage Schema
How do I implement OAuth 2.1 authentication for an MCP server?▼

To implement OAuth 2.1 authentication for an MCP server, you configure the authorization code flow using provided Python and TypeScript examples for OpenAI Apps SDK servers, covering server setup, protected resource metadata, and token validation.

How do I set up API key authentication for an OpenAI Apps SDK MCP server?▼

API key authentication for an OpenAI Apps SDK MCP server involves validating keys via header-based methods, using provided Python and TypeScript code examples to secure protected resources and handle errors.

What is the best way to handle authentication tokens in MCP tool handlers?▼

Handling authentication tokens in MCP tool handlers requires accessing and validating the tokens within the handler logic, applying security best practices and tool security annotations to ensure authorized access.

Does the OpenAI Apps SDK support protected resource metadata for MCP servers?▼

Yes, the OpenAI Apps SDK supports protected resource metadata for MCP servers, allowing you to configure server settings and implement security annotations to restrict access to authorized users.

When should I use API key authentication instead of OAuth 2.1 for an MCP server?▼

You should use API key authentication for simpler, header-based validation when straightforward access control is needed, whereas OAuth 2.1 is suited for securing user-specific data via authorization code flows.

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