3,409 skills. One install layer.

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,

Browser-based IDE + AI agent orchestration CLI. Run Claude Code in parallel across git worktrees, auto-approve safe tools with the Security Bouncer, and control long-running AI work from any device at app.mstro.app.

MCP server for API discovery and recommendations: help Claude Code, Codex, Cursor, Cline, and other coding agents choose APIs with current CLIRank data instead of stale model memory

Planu — MCP Server for Spec Driven Development with native Rust acceleration for hot paths. Cross-platform (Linux/macOS/Windows, x64/arm64, glibc/musl).

MCP server for RepoMap — code intelligence via AST-based repository analysis

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 wrapper around perplexity-webui-scraper for Perplexity WebUI access

MCP server for Kadam ad network — manage campaigns, creatives, audiences, sites, and analytics via AI agents

MCP server and CLI tool for interacting with the Wayback Machine without API keys

Planu — MCP Server for Spec Driven Development with native Rust acceleration for hot paths. Cross-platform (Linux/macOS/Windows, x64/arm64, glibc/musl).

MCP server connecting Claude Code with MySQL — supports SSH tunnels and multiple databases

Structured context store for AI agents - MCP server with SQLite backend

LMCP — connect Claude Desktop, Cursor, Windsurf to Mail, Calendar, Contacts, Teams, OneDrive on macOS. Privacy-first: all data stays on your Mac.

CSP AI Agent MCP Server - Centralized AI tools distribution and management

NestJS MCP Server - Build Model Context Protocol servers with NestJS

Mnemo MCP server — exposes persistent memory tools to Claude Code

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

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

Rust MCP server for Obsidian vaults — read, write, search notes via Model Context Protocol. Works with Claude, Cursor, and any MCP client.

Model Context Protocol (MCP) server for Atlassian Confluence. Enables AI assistants like Claude and Windsurf to read, create, search, and manage wiki pages on Cloud, on-premise Server, and Data Center.

One MCP server to aggregate them all - A unified Model Context Protocol server implementation

MCP server for OpenAlex API - enabling literature review and research landscaping

Your AI agent has read your codebase but still can't safely change it. unerr is a local guardrail that hands the agent the call graph and your rules at the moment it edits.

Local-first web intelligence MCP server for AI coding agents