Best X AI Skills & MCP Servers

MCP server for yrdsl.app. Talks to either the hosted API (api.yrdsl.app) or a local self-hosted repo. Lets Claude add, edit, and reserve items on a digital yard sale.

MCP server for Storybook - provides AI assistants access to components, stories, properties and screenshots

Cross-agent permission policy specification for AI coding agents

User stories as structured AI coding context — scope-check via get_active_story (Claude Code, Cursor, Windsurf)

Financial & research data MCP server — SEC filings, DeFi analytics, wallet profiling, academic papers, US macro data, patent search, token sentiment. 30 tools for AI agents.

Advanced GitLab MCP server

Persistent memory MCP server for Claude Code, Cursor, and GitHub Copilot. Give your AI assistants long-term memory via the Model Context Protocol.

MCP server exposing sensegrep capabilities to AI coding assistants.

MCP server for earthquake data via USGS Earthquake API — no API key required

Pre-execution governance for AI agents. Intercepts MCP tool calls before execution with deterministic blocking, human-in-the-loop holds, and behavioral drift detection.

ContextECF CodeLedger — deterministic context selection for AI coding agents. Safe unscoped alias for @codeledger/cli; avoid the unrelated codeledger package.

Cross-agent permission policy specification for AI coding agents

ClickUp MCP Server - Powering AI Agents with full ClickUp task, document, and chat management capabilities.

Gmail MCP server — scope-gated tools + attachment/download path jails + supply-chain hardening. Fork of GongRzhe/Gmail-MCP-Server via ArtyMcLabin's intermediate fork.

MCP wrapper around perplexity-webui-scraper for Perplexity WebUI access

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

Mojulo — MCP server for building self-hosted chatbots from any MCP-capable agent (Claude Code, Codex, and friends).

MCP Server to explore local and remote documentation

Advanced MCP server for Excalidraw with real-time canvas, WebSocket sync, and comprehensive diagram management

Stop losing team knowledge. Capture your team's engineering decisions and serve them to Claude Code, Cursor, and Windsurf via MCP.

Save chat notes from Claude Desktop to your vault — MCP on Obsidian CLI. Keep what matters.

MCP server that answers questions about the Chia blockchain via the public coinset.org API

A proxy tool that converts normal MCP servers to use lazy-loading pattern with three/four meta-tools

MCP server for Decantr — exposes Contract context, typed graph artifacts, and verification evidence to AI coding assistants