OpenSEO

OpenSEO is an open-source alternative to Ahrefs and SEMrush. MIT licensed, self-hostable with one Docker command, and no subscription, you pay per lookup instead of per month, and your data stays on your own infrastructure. 17 tools ship in the box: 6 keyword tools (overview, ideas, difficulty, SERP checker), 8 website and backlink tools (domain overview, page analyser, backlink profiles, competitor analysis), and 3 AI and local tools. Site audits run 117 technical checks across up to 500 pages. Local rank grids go from 3x3 to 7x7. Rank tracking starts at $0.02 per check. AI visibility is the part the incumbents do not have. OpenSEO tracks whether ChatGPT, Gemini, Claude and Perplexity actually cite your site, measured across 120+ AI models. And because it ships a 76-tool MCP server, your coding agent can run every one of those tools itself, audit a site, pull keyword data, check rankings, without anyone opening a dashboard. Free to use: Search Console data, full site audits, and a local rank grid for any business. Clone the repo, run one Docker command, and it is yours. AI Visibility Checker Rank tracking Local Rank Tracker SERP Checker Technical Site Audit AI Overview Checker Keyword Research Tool Backlink Checker Domain Analysis Keyword Difficulty Finder Projects Page Analyzer