OpenSEO

OpenSEO is an open source all-in-one SEO tool that serves as a pay-as-you-go alternative to Semrush and Ahrefs. It is designed for both humans and AI agents — users can connect it with agents like Claude Code, OpenClaw, or Hermes via pre-built skills, or build their own custom skills to tailor the tool to their workflow. Key features include keyword research, site auditing, backlink analysis, rank tracking, and competitor analysis. Users maintain full control of their data with a self-hostable option. Built by the every-app team.