OpenSEO is a self-hostable Semrush alternative whose primary interface is MCP, at +517 stars today
GitHub Trending·medium signal
every-app/open-seo climbed GitHub trending with +517 stars today on a base of 14,882, offering keyword research, backlinks, rank tracking and site audits. The pricing model is bring-your-own DataForSEO API key and pay per call instead of a $100+/month subscription, with a $10/month hosted option at openseo.so. The interesting part for builders is that it exposes the whole toolset over MCP for Claude Code and other agents, so SEO auditing becomes an agent tool call rather than a dashboard visit.