8 Best OpenSEO Alternatives in 2026 (Open Source)
OpenSEO — Open source alternative to Semrush and Ahrefs. Provides MCP server and agent skills specifically for integrating SEO capabilities into AI agent workflows
These 8 open-source tools do the same job. They are ordered by how closely they match OpenSEO, with live GitHub data so you can see which projects are actively maintained.
| Tool | GitHub stars | Stars / 30d | Last commit |
|---|---|---|---|
| OpenSEO(original) | 21.9k | +1,826 | 2026-09-30 |
| Skills | 179.2k | +26,254 | 2026-09-29 |
| Khazix Skills | 21.1k | +1,756 | 2026-09-30 |
| Claude Code Skills & Plugins | 27.0k | +2,253 | 2026-08-26 |
| Garden Skills | 12.7k | +1,059 | 2026-07-12 |
| gin-vue-admin | 25.1k | +2,088 | 2026-09-20 |
| JeecgBoot | 48.0k | +4,004 | 2026-09-22 |
| Activepieces | 24.8k | +2,068 | 2026-09-30 |
| MaxKB | 22.9k | +1,908 | 2026-09-28 |
1. Skills
Public repository for Agent Skills
What sets it apart: Official Anthropic skill system for Claude with production-grade document skills (PDF/DOCX/PPTX/XLSX) and a standardized Agent Skills specification
Best for: Claude users wanting to extend capabilities with domain expertise; Teams building repeatable workflows in Claude; Developers creating Claude Code plugins
2. Khazix Skills
数字生命卡兹克开源的 AI Skills 合集 | Agent Skills: leader（帮你定义目标）, neat-freak 洁癖, hv-analysis, khazix-writer & more — Claude Code, Codex & 40+ agents
What sets it apart: A collection of practical, tested agent skills following an open interoperability standard.
Best for: Developers looking to extend agent capabilities with pre-built modules; Users of Claude Code, Codex, or other compatible agents; Those wanting structured, reusable agent instructions
3. Claude Code Skills & Plugins
380 Claude Code skills & agent skills & plugins (30+ Agents, 70+ custom commands, 380+ skills, customizable references, scripts)for Claude Code, Codex, Gemini C
What sets it apart: The most comprehensive open-source library of Claude Code skills and agent plugins covering 13 different coding agent platforms.
Best for: Extending AI coding agents with specialized skills; Adding enterprise domain expertise to coding workflows; Creating reusable agent personas for different business functions
4. Garden Skills
ConardLi's open-source Skills collection, featuring web design, knowledge retrieval, image generation, and more.
What sets it apart: A curated, open-source collection of production-ready, modular skills specifically formatted for integration into AI coding agents.
Best for: developers building AI coding agents; adding modular functionality to coding assistants; prototyping agent capabilities quickly
5. gin-vue-admin
🚀Vite+Vue3+Gin拥有AI辅助的基础开发平台，企业级业务AI+开发解决方案，内置mcp辅助服务，内置skills管理，支持TS和JS混用。它集成了JWT鉴权、权限管理、动态路由、显隐可控组件、分页封装、多点登录拦截、资源权限、上传下载、代码生成器、表单生成器和可配置的导入导出等开发必备功能。
What sets it apart: Combines full-stack development framework with built-in MCP services and AI-assisted coding specifically for agent building.
Best for: Developers building AI agent applications; Teams needing enterprise-grade AI development solutions; Projects requiring MCP integration
6. JeecgBoot
【低代码v2.0，一句话即可生成整个系统】企业级AI低代码平台，一键生成前后端代码甚至整个系统。 AI Skills 一句话画流程、设计表单、生成报表、大屏。内置 AI应用平台涵盖：AI聊天、知识库、流程编排、MCP插件等，兼容主流大模型。引领AI低代码「Skills 生成 → 在线配置 → 代码生成 → 手工合并->
What sets it apart: Combines AI-powered natural language programming with enterprise low-code platform specifically for Java system generation and AI agent development.
Best for: Java developers automating repetitive coding tasks; Building enterprise AI applications with low-code; Creating AI agents with workflow orchestration
7. Activepieces
AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agent
What sets it apart: Largest open source MCP toolkit with 280+ pieces automatically available as MCP servers for LLM integration.
Best for: Building AI agents with MCP integration; Creating extensible AI workflows; Technical users wanting TypeScript customization
8. MaxKB
🔥 MaxKB is an open-source platform for building enterprise-grade agents. 强大易用的开源企业级智能体平台。
What sets it apart: Combines enterprise-grade agent building with comprehensive RAG pipelines and MCP tool-use capabilities in an open-source package.
Best for: Enterprise agent development; Intelligent customer service systems; Corporate internal knowledge bases
FAQ
- What are the best alternatives to OpenSEO?
- The closest open-source alternatives to OpenSEO are Skills, Khazix Skills and Claude Code Skills & Plugins, followed by Garden Skills, gin-vue-admin and JeecgBoot. They are ranked by how closely they match what OpenSEO does.
- Which OpenSEO alternative is the most popular?
- Skills has the most GitHub stars among OpenSEO alternatives, with 179,159 stars.
- Which OpenSEO alternative is the most actively maintained?
- By recent activity, Activepieces (1,026 commits in the last 90 days) is the most actively developed alternative.