Best Oauth AI Skills & MCP Servers

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

Gmail MCP server with auto authentication support

MCP client for discovering and exercising resources, tools, prompts, and completions over stdio or OAuth-protected HTTP. Ships with a CLI, an interactive REPL, and a web dashboard served by `mcp-inspector serve`.

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

MCP server for Google Sheets integration - Your AI Assistant's Gateway to Google Sheets!

All-in-one Feishu MCP server + CLI tool for Claude Code / Codex / Cursor / scripts — 85 tools across 3 auth layers (cookie / app / OAuth). Send as you, read groups, manage docs / bitable / wiki / drive / calendar / tasks / OKR.

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

Test, debug, and validate MCP servers — health checks, OAuth conformance, tool-surface diffing, and structured triage from the terminal or CI

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

MCP server for Evernote integration with note management and synchronization

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 Salla e-commerce (Saudi Arabia) — 9 tools for products, orders, customers, store. OAuth 2.0.

MCP server for Evernote integration with note management and synchronization

Civic Auth integration for MCP servers

Embedded OAuth 2.1 authorization server for MCP — wraps the MCP SDK auth router into NestJS

JWT authentication for MCP servers — JWKS validation, scope auto-discovery, and RFC 9728 Protected Resource Metadata

Model Context Protocol registry, transports, and OAuth bridges for Electric Agents

MCP Orchestrator - Discover and install MCPs with automatic OAuth support. Uses Claude CLI for OAuth MCPs (Canva, Asana, etc). 34 trusted MCPs from Claude Partners.

React hooks for connecting browser apps to remote MCP servers.

Multi-workspace Google Workspace MCP Server — secure access to Gmail, Drive, Docs, Sheets, Calendar via MCP with per-workspace OAuth and streamable HTTP transport

A lightweight MCP (Model Context Protocol) client library for JavaScript and cross-runtime environments, supporting MCP Apps in host applications and multiple storage backends (Memory, File, Redis, Supabase, Neon).

MCP server library + ratel-mcp CLI: expose a Ratel tool catalog as a Model Context Protocol server. Manage upstream MCP servers, OAuth, and Claude Code import from one binary.