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Best Der AI Skills & MCP Servers

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

Vibe Testing

MCP Registry

Code-aware browser testing agent — reads your codebase, understands functionality, tests every element, reports with screenshots. Works as MCP server for Cursor/Claude Code or standalone CLI.

MCP Registry · ★ 5.0free

Core

MCP Registry

Personalized GitHub issue finder with multi-strategy search, deep vetting, and viability scoring — CLI, library, MCP server, and Claude Code plugin

MCP Registry · ★ 5.0free

Crixin

MCP Registry

The MCP toolkit for AI agents. Voice MCP gives your AI a phone line through your own Twilio. Coder MCP gives it a memory across every Claude Code, Codex CLI, and Cursor session. One npm package, two capability modules, local SQLite, no SaaS in the middle.

MCP Registry · ★ 5.0free

Profanease

MCP Registry

Modern, lightweight profanity detection & content moderation toolkit with l33t speak detection, multi-language support, and guard rails

MCP Registry · ★ 5.0free

Claude Video Vision

MCP Registry

MCP server that gives Claude Code the ability to watch and understand videos — extracts frames via ffmpeg and processes audio via multiple backends

MCP Registry · ★ 5.0free

Mistral

MCP Registry

MCP server exposing Mistral AI capabilities over MCP: chat, embeddings, FIM, vision, OCR, audio, agents, moderation, classification, files, batch, workflows, sampling, prompts, resources, and Streamable HTTP.

MCP Registry · ★ 5.0free

Dgmo

MCP Registry

MCP server for rendering DGMO diagrams — SVG/PNG output, browser preview, HTML reports, and 35+ chart types. Works with Claude Desktop, Claude Code, and any MCP client.

MCP Registry · ★ 5.0free

Thunderbird Cli

MCP Registry

MCP server that gives Claude Desktop full access to your email through Mozilla Thunderbird. 12 high-level tools: search, read, compose, reply, attachments, folders.

MCP Registry · ★ 5.0free

Server Sec

MCP Registry

MCP server for Claude Desktop: search SEC filing sections, financial statements, insider trades, institutional ownership, earnings actuals, XBRL metrics, and company lookup.

MCP Registry · ★ 5.0free

Emailverify

MCP Registry

Model Context Protocol server for EmailVerify.io. Provides email validation, bulk validation, and email finder capabilities.

MCP Registry · ★ 5.0free

Angel One

MCP Registry

MCP server for Angel One SmartAPI — trade stocks, track portfolio, analyze markets & manage orders via LLM clients like Claude, Cursor & Copilot

MCP Registry · ★ 5.0free

0Nmcp

MCP Registry

Universal AI API Orchestrator — 1,598 tools across 106 services. UCP (Universal Commerce Protocol), the .0n App Marketplace, AI Course Builder, Lead Magnet Loop, Automation Builder, SaaS Factory, App Builder, Website Builder, and the Agentic Automation Ge

MCP Registry · ★ 5.0free

Pi Minimax

MCP Registry

MiniMax MCP tools for pi - Web search and image understanding via MiniMax's Model Context Protocol

MCP Registry · ★ 5.0free

Telegram

MCP Registry

Telegram MCP server (MTProto). Connect Claude, Codex, Cursor, Claude Code, VS Code, Cline, Windsurf, and other MCP clients to a real Telegram user account: read dialogs, search messages globally, send/edit/forward, react/poll, moderate channels, tag Saved

MCP Registry · ★ 5.0free

Openfec

MCP Registry

Access FEC campaign finance data through MCP. Query data about candidates, money trails, and election filings. STDIO & Streamable HTTP.

MCP Registry · ★ 5.0free

Viveka

MCP Registry

MCP server for structured iterative reasoning with 13 critical thinking lenses — a disciplined thinking scaffold for AI agents. Features structured reasoning state, cognitive moves (branch/revise/supersede/falsify/verify/retract/stop), Escalation Ladder,

MCP Registry · ★ 5.0free

Bypass

MCP Registry

MCP server for bypass-saas platform management — courses, articles, students, orders, knowledge bases, AI chat

MCP Registry · ★ 5.0free

Hypertool

MCP Registry

HyperTool MCP proxy server for routing requests between clients and multiple underlying MCP servers

MCP Registry · ★ 5.0free

Ask Llm

MCP Registry

Unified MCP server for multi-LLM consultation — registers tools from all available providers (Gemini, Codex, Ollama) behind runtime availability checks

MCP Registry · ★ 5.0free

Pdf Reader

MCP Registry

MCP server for PDF structure analysis - read, inspect, and validate PDF internals

MCP Registry · ★ 5.0free

Tebra

MCP Registry

MCP server for Tebra/Kareo practice management — 45 tools covering patients, appointments, encounters, billing, payments, documents, providers, and FHIR clinical data for AI agents via the Model Context Protocol

MCP Registry · ★ 5.0free

Cv Forge

MCP Registry

Forge powerful, ATS-friendly CVs tailored to any job - an MCP server for intelligent CV generation

MCP Registry · ★ 5.0free

Nodebench

MCP Registry

Turn messy input into a sourced report. 15 default tools: workflow, bidirectional sync, canonical NodeBench research bridge, discover_tools, and load_toolset.

MCP Registry · ★ 5.0free

Pi Minimax

MCP Registry

MiniMax MCP tools for pi - Web search and image understanding via MiniMax's Model Context Protocol

MCP Registry · ★ 5.0free

About Der skills on iClaude

iClaude is the universal install layer for AI skills. Every Der 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.