The specification for the Universal Tool Calling Protocol

a magical LLM desktop client that makes it easy for *anyone* to use LLMs and MCP

Fast-track AI innovation with a centralized, trusted, curated registry

Plugin suite + bundled MCP servers for Claude Code. Full delivery lifecycle: Agile pipeline with multi-model AI review, project bootstrap, documentation generation, codebase audits, performance optimization, community workflows. Includes hex-line (hash-verified editing), hex-graph (code knowledge graph), and hex-ssh (remote SSH) MCP servers.

Bringing Human Capabilities to AI Agents

The Rust SDK for building coding agents. Tool execution, LLM streaming, graph memory, sub-agent orchestration, MCP — as composable library functions.

Security and best-practices scanner for AI Plugins, covering Codex, Claude, Opencode, Gemini & more. Scores trust for plugins 0-100.

Transform your Claude Code terminal with atomic precision statusline. Features flexible layouts, real-time cost tracking, MCP monitoring, prayer times, and beautiful themes.

A secure* runtime for autonomous AI agents. Policy from plain-English constitutions. (*https://ironcurtain.dev)

🧠 The production-ready cognitive foundation for autonomous systems such as OpenClaw and Embodied-AI. For memory management, from extraction and search to automated optimization, with SKILL, CLI, API, MCP, and insights dashboard out-of-the-box.

Fast, universal domain availability checker - 1,200+ TLDs, pattern generation, RDAP with WHOIS fallback. CLI + Rust library + MCP server for AI agents.

The open-source execution engine for AI agents. 412 modules, MCP-native, triggers, queue, versioning, metering.

Evo AI is an open-source platform for creating and managing AI agents, enabling integration with different AI models and services.

Govern & Secure your AI

Open-source cross-agent memory layer for coding agents via MCP. Compatible with Cursor, Claude Code, Codex, Windsurf, Gemini CLI, GitHub Copilot, Kiro, OpenCode, Antigravity, and Trae.

Station is our open-source runtime that lets teams deploy agents on their own infrastructure with full control.

A curated list of AI tools, libraries, and resources for economics research, teaching, and policy analysis. Maintained by the OpenEcon team.

一键给Claude Code 提高智商，包含生产级 agents、skills、hooks、commands、rules 和 MCP 配置

MCP Server for Turkish & American Stock Exchange and Fund Data

Any AI, replaces Claude Code, Cursor, OpenClaw. Over 18 LLM providers (Claude, OpenAI, Gemini, Ollama, Zai, HF, Qwen) wired into a native Mac app that writes code, builds Xcode projects, bumps versions, manages git, automates Safari, use AppleScript, JS or Accessibility, extend Agent! w/ MCP Servers, run tasks from your iPhone via Messages.

Give your AI agents persistent memory.

🤖🕰️ An MCP server that gives language models temporal awareness and time calculation abilities. Teaching AI the significance of the passage of time through collaborative tool development.

MCP Server for code graph analysis and visualization by CodeGPT

Give your AI agent a real browser — with a human in the loop. Open-source MCP-native browser agent.