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Best Capabilities AI Skills & MCP Servers

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

Imap Email

MCP Registry

MCP server for Claude Code that provides email capabilities through IMAP/SMTP. Read, search, compose, and manage emails from any IMAP provider.

MCP Registry · ★ 5.0free

Observatory

MCP Registry

Test your MCP servers for breaking changes. Checks capabilities, invokes tools, detects schema drift between versions.

MCP Registry · ★ 5.0free

Hal

MCP Registry

HAL (HTTP API Layer) - An MCP server that provides HTTP API capabilities to Large Language Models with OpenAPI/Swagger integration

MCP Registry · ★ 5.0free

Qr Code Ai

MCP Registry

Qr Code Ai tools for AI agents. Capabilities: generate qr data, decode qr data, create vcard qr. Built by MEOK AI Labs.

MCP Registry · ★ 5.0free

Doc Forge

MCP Registry

MCP server that provides doc forge capabilities

MCP Registry · ★ 5.0free

Lead Scoring Ai

MCP Registry

Lead Scoring Ai tools for AI agents. Capabilities: score lead, add lead, update lead activity. Built by MEOK AI Labs.

MCP Registry · ★ 5.0free

Proofof Ai

MCP Registry

Proofof Ai tools for AI agents. Capabilities: verify text origin, detect deepfake image, generate content certificate. Built by MEOK AI Labs.

MCP Registry · ★ 5.0free

Screenshot

MCP Registry

MCP server providing screenshot capture capabilities for AI agents with multi-format support, PII masking, and security controls

MCP Registry · ★ 5.0free

Meal Planner Ai

MCP Registry

Meal Planner Ai tools for AI agents. Capabilities: plan meals, calculate macros, generate shopping list. Built by MEOK AI Labs.

MCP Registry · ★ 5.0free

Perplexity

MCP Registry

A Perplexity API Model Context Protocol (MCP) server that unlocks Perplexity's search-augmented AI capabilities for LLM agents. Features robust error handling, secure input validation, and transparent reasoning with the showThinking parameter. Built with

MCP Registry · ★ 5.0free

Client Capabilities

MCP Registry

Index of all Model Context Protocol (MCP) clients and their capabilities

MCP Registry · ★ 5.0free

Postgres

MCP Registry

A Model Context Protocol (MCP) server that provides comprehensive PostgreSQL database management capabilities for AI assistants

MCP Registry · ★ 5.0free

Perplexity

MCP Registry

MCP server providing intelligent search, reasoning, and research capabilities powered by Perplexity's specialized AI models

MCP Registry · ★ 5.0free

Mcp

MCP Registry

Model Context Protocol server for ZeroBounce email validation, verification, and intelligence. Provides comprehensive email validation, AI scoring, email finder, domain search, and bulk processing capabilities for AI coding assistants.

MCP Registry · ★ 5.0free

Google Calendar

MCP Registry

MCP server that provides google calendar capabilities

MCP Registry · ★ 5.0free

Mcp

MCP Registry

MCP server for AgenticMail — give any AI client real email, SMS, and phone call-control capabilities

MCP Registry · ★ 5.0free

Jira

MCP Registry

A comprehensive Model Context Protocol server for Jira integration with issue management, board operations, time tracking, and project management capabilities

MCP Registry · ★ 5.0free

Github

MCP Registry

A comprehensive Model Context Protocol (MCP) server that provides Git repository management capabilities for AI assistants and automation tools. Includes 29 Git operations + 11 workflow combinations with complete CLI alias system and advanced developer pr

MCP Registry · ★ 5.0free

Docker

MCP Registry

A Model Context Protocol (MCP) server that enables AI agents to interact with Docker containers locally or remotely via SSH. Provides comprehensive Docker management capabilities including container operations, logs, monitoring, and cleanup.

MCP Registry · ★ 5.0free

Nanobanana

MCP Registry

MCP server for Gemini 3.1 Flash with vision, chat, and image generation capabilities

MCP Registry · ★ 5.0free

Brick Agent

MCP Registry

Agent registry — register AI agents with capabilities, list available agents, query capabilities.

MCP Registry · ★ 5.0free

Fast Mermaid Validator

MCP Registry

High-performance API and Model Context Protocol (MCP) server for validating Mermaid diagrams with comprehensive security features, multiple transport options, and enterprise-grade capabilities

MCP Registry · ★ 5.0free

Fred

MCP Registry

Federal Reserve Economic Data (FRED) MCP Server - Access all 800,000+ economic time series with search, browse, and data retrieval capabilities

MCP Registry · ★ 5.0free

Sql Driver

MCP Registry

MCP-backed SqlDriver — talks to any MCP server exposing a SQL query tool. Reduced capabilities (no transactions, no per-session role context) but works against any MCP-protocol DB server.

MCP Registry · ★ 5.0free

About Capabilities skills on iClaude

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