# sanity-plugin-seo > The most complete free SEO plugin for Sanity CMS. Adds live SEO scoring, AI meta generation, Open Graph, Twitter Cards, Schema.org JSON-LD, hreflang, and GEO analytics directly inside Sanity Studio. Free and open source. Works with Sanity v3, v4, and v5. ## Pages - [Home](https://sanity-seo-plugin.bkpatel.com/): Overview of sanity-plugin-seo — the most complete SEO plugin for Sanity Studio. - [Features](https://sanity-seo-plugin.bkpatel.com/features): Full list of features — live SEO score, Open Graph, Twitter Cards, JSON-LD, hreflang, focus keyword scoring. - [AI Features](https://sanity-seo-plugin.bkpatel.com/ai-features): AI meta generation and GEO checklist for ChatGPT, Perplexity, and Google AI Overviews. - [Pricing](https://sanity-seo-plugin.bkpatel.com/pricing): Free and Pro plans — core features are free and open source. - [Integrations](https://sanity-seo-plugin.bkpatel.com/integrations): Code examples for Next.js, Astro, Nuxt 3, SvelteKit, and Remix. - [Docs](https://sanity-seo-plugin.bkpatel.com/docs): Full setup guide, API reference, AI configuration, bodyFields, and hreflang docs. - [Contact](https://sanity-seo-plugin.bkpatel.com/contact-us): Get in touch with the sanity-plugin-seo team. ## External Links - [npm package](https://www.npmjs.com/package/sanity-plugin-seo): Install sanity-plugin-seo from npm. - [GitHub repository](https://github.com/bhargav-bkpatel/sanity-plugin-seo): Source code, issues, and contribution guide. ## Full Reference - [llms-full.txt](https://sanity-seo-plugin.bkpatel.com/llms-full.txt): Complete reference including all features, config examples, framework code snippets, and FAQ.