Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

Excellent quality, 18K stars, and a 32 use-case fit score.

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

Excellent quality, 30K stars, and a 30 use-case fit score.

Graphs that teach > graphs that impress. Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.

Excellent quality, 75K stars, and a 27 use-case fit score.

PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.

Excellent quality, 26K stars, and a 26 use-case fit score.

AI coding assistant skill (Claude Code, Codex, OpenCode, Cursor, Gemini CLI, and more). Turn any folder of code, SQL schemas, R scripts, shell scripts, docs, papers, images, or videos into a queryable knowledge graph. App code + database schema + infrastructure in one graph.

Excellent quality, 91K stars, and a 25 use-case fit score.

Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.

Excellent quality, 83K stars, and a 24 use-case fit score.

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.

Excellent quality, 35K stars, and a 24 use-case fit score.

A lightweight, lightning-fast, in-process vector database

Excellent quality, 15K stars, and a 23 use-case fit score.

Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, personal knowledge management (PKM), and an open-source Notion alternative. Based on Karpathy's LLM Wiki pattern.

Excellent quality, 11K stars, and a 23 use-case fit score.

ConardLi's open-source Skills collection, featuring web design, knowledge retrieval, image generation, and more.

Excellent quality, 9.5K stars, and a 22 use-case fit score.

Create original visual art, posters, PNG assets, and PDF documents through a clear design philosophy.

Excellent quality, 171K stars, and a 22 use-case fit score.

An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

Excellent quality, 71K stars, and a 21 use-case fit score.

AI-powered job search system built on Claude Code. 14 skill modes, Go dashboard, PDF generation, batch processing.

Excellent quality, 60K stars, and a 21 use-case fit score.

Build AI Agents, Visually

Excellent quality, 54K stars, and a 21 use-case fit score.

Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce.

Excellent quality, 29K stars, and a 21 use-case fit score.

Reverse Engineering / Authorized Penetration Testing / Security Research Skill Router Pack AI-powered routing + On-demand toolchain bootstrapping + Self-evolving knowledge base Supports Claude Code, Kiro, Cursor, Cline, and other AI coding clients 逆向/渗透/安全技能路由包 - AI 自动路由 + 按需自举工具链 + 自动进化经验库 | 支持 Claude Code / Kiro / Cursor / Cline 等代码 AI 客户端

Excellent quality, 26K stars, and a 20 use-case fit score.

DeepTutor: Agent-native, Open-sourced Personalized Tutoring. https://deeptutor.info/.

Excellent quality, 25K stars, and a 20 use-case fit score.

Crawlee—A web scraping and browser automation library for Node.js to build reliable crawlers. In JavaScript and TypeScript. Extract data for AI, LLMs, RAG, or GPTs. Download HTML, PDF, JPG, PNG, and other files from websites. Works with Puppeteer, Playwright, Cheerio, JSDOM, and raw HTTP. Both headful and headless mode. With proxy rotation.

Excellent quality, 24K stars, and a 20 use-case fit score.

280+ free n8n automation templates — ready-to-use workflows for Gmail, Telegram, Slack, Discord, WhatsApp, Google Drive, Notion, OpenAI, and more. AI agents, RAG chatbots, email automation, social media, DevOps, and document processing. The largest open-source n8n template collection.

Excellent quality, 23K stars, and a 20 use-case fit score.

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

Excellent quality, 22K stars, and a 20 use-case fit score.

Universal SEO skill for Claude Code. 25 sub-skills + 18 sub-agents covering technical SEO, E-E-A-T, schema, GEO/AEO, backlinks, local SEO, maps intelligence, semantic clustering, e-commerce SEO, international SEO, Google APIs, and PDF/Excel reporting. Optional DataForSEO, Firecrawl, and Banana extensions.

Excellent quality, 14K stars, and a 20 use-case fit score.

PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.

Excellent quality, 10K stars, and a 19 use-case fit score.

Crawlee—A web scraping and browser automation library for Python to build reliable crawlers. Extract data for AI, LLMs, RAG, or GPTs. Download HTML, PDF, JPG, PNG, and other files from websites. Works with Parsel, BeautifulSoup, Playwright, and raw HTTP. Both headful and headless mode. With proxy rotation.

Excellent quality, 9.2K stars, and a 19 use-case fit score.

GEO-first SEO skill for Claude Code. Comprehensive AI search optimization for any website — citability scoring, AI crawler analysis, brand authority, schema markup, platform-specific optimization, and PDF reports. If you want learn how to sell this to real businesses, check out the skool community

Excellent quality, 8.1K stars, and a 19 use-case fit score.

The backtesting engine that gives you an unfair advantage. Run thousands of trading ideas before others finish one.

Excellent quality, 7.9K stars, and a 19 use-case fit score.

🎨 Local-first, open-source Claude Design alternative. 🖥️ Native desktop app. ⚡ 259+ Skills · ✨ 142+ Design Systems 🖼️ Web · desktop · mobile prototypes · slides · images · videos · HyperFrames 📦 Sandboxed preview · HTML/PDF/PPTX/MP4 export 🤖 Claude Code / OpenClaw / Codex / Cursor / OpenCode / Qwen / Copilot / Hermes / Kimi & 17+ CLIs.

Excellent quality, 88K stars, and a 19 use-case fit score.

Cross-CLI skill for Obsidian: turn your vault into a living AI-first second brain across Claude Code, Codex, Gemini, and OpenCode. 43 commands - now with /obsidian-architect to document your codebase, key-less web research, Google Calendar, and self-rewriting notes.

Excellent quality, 3.6K stars, and a 19 use-case fit score.

Adaptive web scraping for agent data collection

Excellent quality, 70K stars, and a 18 use-case fit score.

Research the last 30 days across Reddit, X, YouTube, Hacker News, Polymarket, GitHub, and the web, then synthesize a grounded brief for an AI agent.

Excellent quality, 54K stars, and a 18 use-case fit score.

微舆：人人可用的多Agent舆情分析助手，打破信息茧房，还原舆情原貌，预测未来走向，辅助决策！从0实现，不依赖任何框架。

Excellent quality, 42K stars, and a 18 use-case fit score.