Best Auth AI Skills & MCP Servers

Extended Google Classroom MCP server via gogcli — auth + full Classroom support

Extended Google Slides MCP server via gogcli — auth + full Slides support

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

MCP proxy for Pharaoh — maps codebases into queryable knowledge graphs for AI agents. Enables Claude Code in headless environments (VPS, SSH, CI) via device flow auth.

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.

Agent-native TypeScript framework for building MCP servers. Declarative definitions with auth, multi-backend storage, OpenTelemetry, and first-class support for Bun/Node/Cloudflare Workers.

Jenkins MCP server with bearer token authentication support

The Control Plane for AI Agents. 26,701 discoverable APIs, 2,906 callable, 49 fully managed. Agent-native auth: `apiclaw auth login` opens your browser, one-tap sign-in, writes ~/.apiclaw.toml. Four doors: local MCP, CLI, HTTP gateway, Remote MCP. One aut

SAP ABAP ADT MCP server with full CRUD for on-prem and ABAP Cloud (BTP), plus JWT/XSUAA and service-key destination auth

Slack MCP without OAuth. 21 tools (16 read/write Slack + 2 workflow profile primitives + 3 hosted-brain upgrade stubs). Free OSS or hosted (free tier no card; $9/mo Pro = unlimited; morning DM rolling out Q2 2026).

EDGAR MCP — SEC EDGAR public APIs (free, no auth)

Local MCP server for Google Workspace (Gmail, Drive, Calendar, Sheets, Docs, Contacts, Tasks, Meet, Search Console, +Forms/Chat/Admin) across multiple accounts — OAuth-only, encrypted token storage, deny-by-default writes.

Gmail MCP server — scope-gated tools + attachment/download path jails + supply-chain hardening. Fork of GongRzhe/Gmail-MCP-Server via ArtyMcLabin's intermediate fork.

n8n community node: Real MCP Server Trigger (Streamable HTTP) with Auth0 Bearer token validation

Official EZTexting MCP server bridge — connects local MCP clients to https://mcp.eztexting.com via Streamable HTTP + OAuth 2.1 PKCE.

SEC MCP — SEC EDGAR public APIs (free, no auth)

The MCP server for Taiwan NHI billing intelligence — rejection codes, audit clauses, drug payment rules, fee schedule, special materials, and appeal case precedents. Helps AI agents answer Taiwan health-insurance billing and audit questions with authorita

The easiest MCP server for Google Workspace — Drive, Docs, Sheets, Gmail, Calendar, and Forms. 153 tools with one-click browser auth. Read Word docs, PDFs, and spreadsheets straight from Drive.

Claude Code plugin for Dicer: PKCE-authenticated MCP server + craps strategy authoring skills.

Agent-first YouTube Shorts upload CLI and MCP server with dry-run uploads, OAuth readiness and synthetic-media metadata.

AI job search CLI + hosted MCP server with OAuth. 128K+ jobs, 1,900+ companies, 40+ ATS. Works with Claude, ChatGPT, Cursor, Windsurf, Codex via hosted streamable-http or local stdio.

An ntfy MCP server for sending ntfy notifications to your self-hosted ntfy server from AI Agents 📤 (supports secure token auth & more - use with npx or docker!)

Node.js/TypeScript MCP server for AWS Single Sign-On (SSO). Enables AI systems (LLMs) with tools to initiate SSO login (device auth flow), list accounts/roles, and securely execute AWS CLI commands using temporary credentials. Streamlines AI interaction w

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