OpenSEO: Open-source SEO tool — can it replace Ahrefs / Semrush?
Self-hosted. Keywords, rankings, backlinks, and site audits run through DataForSEO on a pay-as-you-go model — no need to subscribe to Ahrefs or Semrush first.
MCP and Agent Skills can plug the same data into Claude Code and Cursor.
A good fit when query volume isn’t huge and you want to control deployment and cost yourself. More flexible than a fixed subscription.
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