Best Auth AI Skills & MCP Servers

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

Search books and authors, fetch editions, browse subjects, and resolve cover images from Open Library via MCP. STDIO or Streamable HTTP.

MCP server that lets AI read Notion, Google Docs, Jira & any login-protected page via a real browser

MCP server for healthcare AI — medical coding, drug intelligence, reimbursement rates, clinical trials, physician payments, disease surveillance, prior auth, NER, claims validation, HIPAA compliance. 20 tools, pay-per-call via credits or USDC.

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

CLI and MCP servers for Cutline — authenticate, then run constraint-aware MCP servers in Cursor or any MCP client.

A Model Context Protocol (MCP) server for Feishu (Lark) cloud document and wiki management. Supports OAuth, Markdown upload, document reading/updating/deleting, search, and multi-app configuration.

Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex

MCP server for Central Bank of Russia API — currency rates, key rate, precious metals, conversion. 5 tools. No auth required.

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

A terminal coding agent powered by Kimi K2.6, routed through your own Cloudflare AI Gateway — per-request logs, response caching, authoritative cost. Web search, GitHub, headless browser, LSP, MCP, local memory, 262k context.

Local-first MCP server for Claude/Codex project wiki and graph workflows

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

OPVS MCP Server — all 6 public OPVS skills (AgentBoard, AgentDocs, AgentMemory, OPVS Protocol, Auth, Integrations) in one MCP. For clients without per-MCP tool caps (Claude Code, Cursor). Antigravity users should use the scoped @opvs-ai/mcp-<skill> packag

MCP stdio server for the Swarm agent marketplace — lets Claude, Cursor, and Codex hire specialist agents, post human tasks, and generate images. Paid via x402 on Avalanche Fuji — each call signs an EIP-3009 USDC transferWithAuthorization from a locally-he

Civic Auth integration for MCP servers

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

Extended Google Drive MCP server via gogcli — auth + full Drive support (upload/download/permissions/comments/shared drives)

MCP server for read-only Shipcheck launch-risk scans on authorized JavaScript and TypeScript repos.

MCP server for self-hosted Jira instance with Personal Access Token authentication

MCP server for Google Workspace integration (Gmail, Calendar, Drive) with flexible authentication

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