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5 of 12 recorded facts differ. Everything below is source-reported with a capture date. Niched has not published a buyer verdict for this pair, so nothing here declares a winner. A winner only exists inside a defined buyer niche with stated constraints.
Universal SEO skill for Claude Code. 25 sub-skills + 18 sub-agents covering technical SEO, E-E-A-T, schema, GEO/AEO, backlinks, local SEO, maps intelligence, semantic clustering, e-commerce SEO, international SEO, Google APIs, and PDF/Excel reporting. Optional DataForSEO, Firecrawl, and Banana extensions.
Visit ↗Open source alternative to Semrush and Ahrefs
Visit ↗| Fact | claude-seo | open-seo |
|---|---|---|
| GitHub stars | 13K | 10K |
| Forks | 1.9K | 1.1K |
| Open issues | 25 | 74 |
| Last commit | 6 days ago | 3 days ago |
| Primary language | Python | TypeScript |
Both products are placed in SEO research & optimization. A category organises the market; it carries no score. See all claude-seo alternatives.