Best Authentication AI Skills & MCP Servers

Gmail MCP Server with Bearer Token Authentication - A Model Context Protocol server for Gmail access

Multi-account orchestration and secure token storage for OAuth-based MCP servers

Mercle MCP server for AI coding assistants — OAuth, wallet-bridge, and mini-app integration

Analytics tool for MCP (Model Context Protocol) servers - tracks tool usage patterns and provides insights

MCP server for Authentik API with diagnostic and read-only capabilities

Blink MCP Server — serverless cloud infrastructure for agentic coding. Gives your AI coding agent full access to managed SQL databases, authentication, file storage, serverless backends, task queues, custom domains, and production hosting.

Advanced MCP server for Google Drive integration with full CRUD operations, file management, and sharing capabilities. Supports both OAuth2 and Service Account authentication.

Express middleware library for MCP (Model Context Protocol) OAuth authentication

MCP browser server — loads and interacts with web pages using the user's Chromium-based browser with full JavaScript execution. Handles authentication, SSO, and anti-bot protection automatically via the user's existing browser session.

Jenkins MCP server with bearer token authentication support

Dynamic MCP server toolkit for runtime toolset management with Fastify transport and meta-tools

MCP server for Gmail integration with OAuth authentication, message search, batch operations, and Google Sheets export

MCP server for Outlook integration with OAuth authentication, message search, and batch operations

PerfAI MCP Server - Security, Design & Quality Analysis with Auth0 Authentication

MCP server for Google Drive, Google Docs, Google Sheets, and Google Slides with full read/write operations, rich markdown-to-docs formatting, theming, shared drive support, and OAuth2 authentication

Transform LLMs into intelligent interviewers. MCP server for conducting dynamic, conversational surveys with structured data collection. Features skip logic, session resume, multi-tenancy, and pluggable storage backends.

MCP server for Google Sheets integration with OAuth authentication, spreadsheet management, batch operations, and advanced formatting

Gmail MCP server with auto authentication support

Shared authentication library for F5 Distributed Cloud MCP servers - XDG-compliant profile management

Lightweight OAuth 2.0 callback handler for Node.js, Deno, and Bun with built-in browser flow and MCP SDK integration

A Model Context Protocol server for Google Calendar integration with auto authentication

Gmail MCP server with auto authentication support

Comprehensive Model Context Protocol server for WordPress management with composition-based architecture, 59 tools, SEO toolkit, performance monitoring, intelligent caching, and production-ready authentication

NetSuite MCP server with OAuth 2.0 PKCE authentication. Works seamlessly with Claude Code, Cursor IDE, and other MCP clients.