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Best Rag AI Skills & MCP Servers

101 curated Rag skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.

Core

MCP Registry

Native TypeScript AI memory system and MCP server (Zero-LLM, LanceDB)

MCP Registry · ★ 5.0free

Oauth

MCP Registry

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

MCP Registry · ★ 5.0free

Utilsforagents

MCP Registry

MCP server for UtilsForAgents with eight paid x402 utility tools plus one free feedback tool, with Base or Solana payer support.

MCP Registry · ★ 5.0free

Apple App Store Connect

MCP Registry

Complete Model Context Protocol (MCP) server for Apple's App Store Connect API — 1221 tools, 100% coverage. TestFlight, Xcode Cloud, Game Center, App Clips, in-app purchases, subscriptions, analytics, review submissions, provisioning. Works with Claude, C

MCP Registry · ★ 5.0free

Mcp

MCP Registry

MCP server for an OpenAPI sports betting odds API for coding agents, with bookmaker comparison, arbitrage, positive EV, line movement, and mock mode tools.

MCP Registry · ★ 5.0free

Filebread

MCP Registry

Search your Notion, Slack, GitHub, and Google Drive from your AI agent. One command setup. Works with Claude Code, Cursor, and any MCP client.

MCP Registry · ★ 5.0free

Server

MCP Registry

A Model Context Protocol (MCP) server for Ragie

MCP Registry · ★ 5.0free

Codex

MCP Registry

Knowledge infrastructure SDK for AI agents - universal references, multi-tier caching, storage abstraction, and sync

MCP Registry · ★ 5.0free

Taskbounty

MCP Registry

MCP server for TaskBounty. AI agents fix GitHub bugs (with regression tests) and raise test coverage. Funded in USD, paid in USDC, ETH, or BTC.

MCP Registry · ★ 5.0free

Lithtrix

MCP Registry

Memory consolidation for agents—MCP: search, memory write, commons read, blobs, browse.

MCP Registry · ★ 5.0free

Guardvibe

MCP Registry

Security MCP for vibe coding. 424 rules, 36 tools, CLI + doctor. Host security, auth coverage mapping, LLM-powered deep scan (IDOR/business logic), taint analysis. 61 CVE rules refreshed daily from GHSA/OSV/CISA KEV — Next.js May 2026 13-advisory cluster,

MCP Registry · ★ 5.0free

Mcp

MCP Registry

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.

MCP Registry · ★ 5.0free

Local Rag

MCP Registry

Local RAG MCP Server - Easy-to-setup document search with minimal configuration

MCP Registry · ★ 5.0free

Server

MCP Registry

Free email for AI agents, instant messaging between agents, and cloud file storage — all through one MCP server

MCP Registry · ★ 5.0free

Ts Core

MCP Registry

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.

MCP Registry · ★ 5.0free

Prism

MCP Registry

Prism Coder — Cognitive memory + tool-calling intelligence for AI agents. Mind Palace persistent memory (BFCL Gold Certified, 100% Tool-Call Accuracy, 54 Agent Skills, Zero-Search HDC/HRR retrieval, HIPAA-hardened local-first storage, SLERP-optimized GRPO

MCP Registry · ★ 5.0free

Read Website Fast

MCP Registry

Markdown Content Preprocessor - Fetch web pages, extract content, convert to clean Markdown

MCP Registry · ★ 5.0free

Docs To

MCP Registry

MCP server that exposes documentation search tools for AI assistants

MCP Registry · ★ 5.0free

Clawmem

MCP Registry

On-device memory layer for AI agents. Claude Code, OpenClaw, and Hermes. Hooks + MCP server + hybrid RAG search.

MCP Registry · ★ 5.0free

Google Multi

MCP Registry

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.

MCP Registry · ★ 5.0free

S3Db.Js

MCP Registry

Use AWS S3, the world's most reliable document storage, as a database with this ORM.

MCP Registry · ★ 5.0free

Server

MCP Registry

MCP server for Arcadia Finance. Deploy concentrated liquidity on Uniswap, Aerodrome, and Velodrome with automated rebalancing, compounding, yield optimization, and leverage, or single-sided liquidity into lending pools. Base, Unichain, and Optimism.

MCP Registry · ★ 5.0free

Claude Code Organizer

MCP Registry

Organize all your Claude Code memories, skills, MCP servers, commands, agents, rules, and hooks — see what loads globally vs per-project, then move items between scopes

MCP Registry · ★ 5.0free

Memento

MCP Registry

Local-first, LLM-agnostic memory layer for AI assistants. Run via npx @psraghuveer/memento.

MCP Registry · ★ 5.0free

About Rag skills on iClaude

iClaude is the universal install layer for AI skills. Every Rag skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.