By tool · terminal coding agent

Open-source AI skills for Claude Code

Skill packages, MCP servers and agent blueprints that Claude Code loads from a SKILL.md folder or an MCP connection. 1,327 listings in the catalog install into Claude Code; the ones below rank on the depth of the guide we wrote and how well the listing reads, not on GitHub stars alone.

How a listing gets into Claude Code

  • MCP connector (search and install from inside Claude Code)
    claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp
  • Plugin marketplace
    /plugin marketplace add rahulsoni25/workflowstacks-emergent
  • One listing, from the terminal
    npx workflowstacks add <slug>

Every listing page has the matching button and shows what the install needs (keys, runtimes, desktop apps) before you click.

Best for Claude Code

Guide depth, then stars
  1. 1
    Claude skills · ★ 61,738 · BerriAI

    Litellm is a Python SDK and proxy server that simplifies calling over 100 LLM APIs from various providers, including OpenAI, Azure, and Google Vertex AI, with features like cost tracking, guardrails, load balancing, and logging.

  2. 2
    Claude skills · ★ 114,067 · JuliusBrussee

    The caveman tool reduces the number of tokens used in text by simplifying language, similar to how a caveman would communicate, cutting 65% of tokens while maintaining the core message.

  3. 3
    Agents · ★ 190,109 · ohmyzsh

    Ohmyzsh customizes your terminal experience with themes, plugins, and settings, making it easier to work with your command line interface.

  4. 4
    Claude skills · ★ 65,021 · mvanhorn

    The last30days-skill AI agent researches any topic across multiple platforms including Reddit, X, YouTube, HN, Polymarket, and the web, then synthesizes a grounded summary.

  5. 5
    MCP servers · ★ 77,354 · headroomlabs-ai

    Headroom reduces the number of tokens required to get the same answers from a large language model by compressing tool outputs, logs, files, and RAG chunks

  6. 6
    MCP servers · ★ 49,823 · mudler

    LocalAI allows founders to run various AI models, including large language models, vision, voice, image, and video models, on any device without requiring a GPU.

  7. 7
    MCP servers · ★ 36,231 · HKUDS

    Vibe-Trading provides a personal trading agent for fintech founders to automate and optimize their trading activities

  8. 8
    Claude skills · ★ 27,435 · vercel

    The AI Toolkit allows founders to build AI-powered applications and agents using TypeScript, enabling automation and intelligent decision-making in their products.

  9. 9
    MCP servers · ★ 36,137 · can1357

    Oh-my-pi is an AI coding agent that assists with coding tasks directly in the terminal, providing features like automated code editing and optimization.

  10. 10
    MCP servers · ★ 33,594 · agentscope-ai

    Agentscope allows founders to build, run, and understand trustworthy agents with transparent and understandable bots using Python

  11. 11
    Claude skills · ★ 27,689 · Kilo-Org

    Kilo is an open-source coding agent that helps founders build, ship, and iterate faster by automating coding tasks

  12. 12
    MCP servers · ★ 79,404 · diegosouzapw

    OmniRoute provides a unified API gateway to access over 290 AI providers and 500 models, allowing developers to integrate multiple AI services into their applications without worrying about individual APIs and quotas.

  13. 13
    Agents · ★ 162,837 · msitarzewski

    Agency-agents provides a collection of specialized AI agents that can be used to automate various tasks, from frontend development to community management, each with its own personality, processes, and deliverables.

  14. 14
    MCP servers · ★ 156,361 · open-webui

    Open-webui provides a user-friendly interface to interact with AI models from Ollama and OpenAI API, allowing founders to leverage AI capabilities without extensive technical expertise

  15. 15
    Agents · ★ 116,951 · earendil-works

    Pi provides a unified AI agent toolkit for startup founders, allowing them to leverage a large language model (LLM) API, agent loop, and command-line interface (CLI) tools to automate tasks and workflows.

  16. 16
    MCP servers · ★ 89,088 · koala73

    Worldmonitor provides a unified dashboard for real-time global intelligence, aggregating news, tracking geopolitical events, and monitoring infrastructure through an AI-powered situational awareness interface

  17. 17
    Agents · ★ 121,854 · microsoft

    Generative AI for Beginners provides 21 lessons to help startup founders get started with building generative AI models using Jupyter Notebooks

  18. 18
    Claude skills · ★ 255,808 · NousResearch

    The hermes-agent is a flexible Python AI agent that automates tasks across complex project environments by leveraging advanced language model capabilities.

  19. 19
    MCP servers · ★ 355,695 · morluto

    Rea allows founders to inspect and reverse engineer any app down to its binary level, providing clarity on its inner workings.

  20. 20
    Agents · ★ 98,335 · karpathy

    Autoresearch generates automated research papers and articles using AI agents, allowing startup founders to quickly explore and summarize large amounts of information on a given topic.

🔥 Hot this week for Claude Code

Stars gained in 7 days
  1. 1
    Rea: Reverse Engineer Apps+129,224★ this week
    MCP servers · ★ 355,695 · morluto

    Rea allows founders to inspect and reverse engineer any app down to its binary level, providing clarity on its inner workings.

  2. 2
    dsh-our-free-model+17,623★ this week
    Agents · ★ 33,719 · Ebony-Vinyl

    在 dsh 里装上这个插件即可,无需登录、注册或填 API Key,就能使用包括 DeepSeek V4.1 Flash、Kimi K3 在内的前沿模型——完全免费,不限量。 All you do is install this plugin in dsh: no login, no sign-up, no API

  3. 3
    MCP servers · ★ 69,152 · heygen-com

    Hyperframes is a tool that allows you to write HTML and render it as video, specifically designed for use with agents

  4. 4
    graphify+4,837★ this week
    MCP servers · ★ 131,266 · Graphify-Labs

    It builds a deterministic, query‑able knowledge graph of your entire codebase—including source files, docs, SQL schemas, configs and PDFs—so AI assistants can answer exact, code‑level questions without using a vector store.

  5. 5
    superpowers+4,091★ this week
    Agents · ★ 303,229 · obra

    Superpowers is an AI-agent framework and software development methodology that enables founders to build autonomous systems that can learn, reason, and act on their behalf.

🌱 New for Claude Code

Added recently
  1. Agents · ★ 32,705 · onyx-dot-app

    Onyx is an open‑source AI chat platform that lets you run a UI and API on top of any LLM (e.g., OpenAI, Anthropic, Llama) with advanced chat features.

  2. MCP servers · ★ 31,887 · ahujasid

    Lets you drive Blender 3D actions by sending natural‑language prompts to any LLM through a local MCP server.

  3. Agents · ★ 10,544 · tigerless-labs

    Autoharness continuously learns reusable Claude‑Code snippets from your own coding sessions and keeps the skill library up‑to‑date without a separate daemon.

  4. MCP servers · ★ 8,954 · tangency-labs

    SolidCraft: an open-source parametric 3D CAD application built in pure Rust. Desktop, web, and automation through MCP.

  5. Claude skills · ★ 5,642 · SenteLabsAI

    AI-powered virtual executive team — a single coherent executive persona backed by 8 specialist agents (FastAPI + Next.js).