Open source alternative to Semrush and Ahrefs
Global
Free SEO MCP server + open-source SEO and GEO skills for Claude: keyword research, rank tracking, audits, backlinks, AI visibility on your real GSC/GA4/ads data. claude mcp add ryze --transport http
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.
This GitHub repo is a powerhouse collection of scraping APIs for developers that you can start using immediately to build everything from simple automations to full-scale applications.
md files. Install one and your agent can run daily SEO checks, fix title tags, refresh posts that slipped, buy backlinks, map search intent, and write the copy that ranks.
jev-seo is a live SEO audit for any website, from one homepage URL. It crawls the site, checks it against 52 rules tied to Google Search Central, measures Core Web Vitals, and asks Jev, TypeSafe's System One model, typed questions about every page.
Open-source SEO platform. Track Google rankings. Research keywords.
SEOMonster: a local, user-credential-driven MCP server for SEO workflows over Google Search Console, GA4, PageSpeed Insights, and Cloudflare. Read-first, open source.
Awesome skills for submitting url to free websites. Get more backlinks for your website to get more traffic.
Can AI engines cite your site, and do they? Free 0–100 readiness score on an open GEO rubric, plus ask and weekly citation tracking via OpenAI, Perplexity, Gemini, Anthropic and OpenRouter with your own keys. Zero dependencies; CLI, GitHub Action and MCP server.
SEO Landing: Give your AI coding agent the capabilities of a senior Technical SEO engineer. An agent skill for building high-performance, technically optimized SEO landing pages. Turn an AI coding agent into a technical SEO specialist.
NOTE] > Check out the new Open-source Backup management app, Pluton by the same author.
The self-hosted SEO platform. Plain-language audits for search and AI answers.