Best Oauth AI Skills & MCP Servers

MCP server for Google Docs, Drive & Comments (OAuth + Service Account)

DEPRECATED — install the Claude Code plugin at gramatr/claude-plugin instead. This npm package no longer ships a CLI; Codex and Gemini integrations are paused pending HTTPS+OAuth MCP support.

A local MCP server that breaks on demand. Test your client against auth failures, disappearing tools, flaky responses, and token expiry.

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).

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

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

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.

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

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

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.

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

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

Agent-first TikTok Content Posting API CLI and MCP server with dry-run publishing, OAuth readiness and privacy audit tools.

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

Model Context Protocol (MCP) server for Prizmad — generate AI UGC video ads from any product URL. Tools for recommend_template, upload_image, create_video, get_video_status (with live progress), create_video_batch, list_my_videos. OAuth 2.1 Connect flow f

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

GitHub MCP Server with OAuth support for Issue management

Enhanced MCP server for X with OAuth 2.0 support, media uploads, and comprehensive rate limiting.

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

MCP server for Notion using internal API — search, export, and import pages as markdown. No workspace admin or OAuth needed, just your browser cookie.

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

The mcp-use CLI is a tool for building and deploying MCP servers with support for ChatGPT Apps, Code Mode, OAuth, Notifications, Sampling, Observability and more.

MCP server for Evernote integration with note management and synchronization

MCP server for Momen.app