Claude SEO is a free, open-source SEO tool that runs inside Claude Code. You install it as a plugin, type /seo audit <url>, and parallel AI agents audit the site and return a prioritised action plan. It is MIT licensed, needs no API key to start, and has passed 20,000 stars on GitHub.
Updated October 2026: refreshed the project figures, install steps and command list, and removed older numbers I could no longer verify.
It was created by Agrici Daniel. It is an independent community project, not an Anthropic product, so treat it like any other third-party tool and read what it installs.
What is Claude SEO?
Claude SEO replaces the browser dashboard of a traditional SEO platform with commands you run in your terminal. According to the GitHub README it bundles 26 sub-skills and 19 subagents, and a full audit can use up to 17 specialist agents in parallel. Findings are scored and sorted into a prioritised action plan, and reports are saved as files on your machine.
What can Claude SEO audit?
The README groups its commands by job. The main ones are:
- Audits and planning:
/seo auditfor a whole site,/seo pagefor one URL,/seo planfor a strategy. - Technical SEO:
/seo technical,/seo sitemap,/seo images,/seo hreflang,/seo programmaticand/seo drift. - Content and E-E-A-T:
/seo content,/seo content-brief,/seo clusterand/seo sxo. - Schema and AI search:
/seo schema,/seo geoand/seo agentic, for visibility in AI Overviews and other AI search tools. - Local, links and commerce:
/seo local,/seo maps,/seo backlinksand/seo ecommerce. - Google data:
/seo googleconnects the free PageSpeed Insights, Chrome UX Report, Search Console and GA4 APIs, with keys that stay on your machine.
How to install Claude SEO
You need Claude Code 1.0.33 or newer and Python 3.11 to 3.14. The easiest route is the plugin marketplace. Run these inside Claude Code:
/plugin marketplace add AgriciDaniel/claude-seo
/plugin install claude-seo@agricidaniel-claude-seo
/seo setup/seo setup installs the headless browser it needs. To install manually on macOS or Linux instead:
git clone --depth 1 https://github.com/AgriciDaniel/claude-seo.git
bash claude-seo/install.shWindows users run install.ps1 from the cloned folder with PowerShell. Once it is installed, run /seo doctor to check the setup, then /seo audit https://your-site.com.
Claude AI SEO tools: where Claude SEO fits
Among Claude AI SEO tools, and as an SEO tool for Claude Code, this one is aimed at developers who already work in Claude Code and want audits, schema and content checks without leaving the terminal. It is free to install, but a full audit uses more of your Claude plan than a single-page check, so the real cost is your usage.
It is not a replacement for a keyword or rank-tracking database. For that, the README lists optional extensions for AI image generation (Banana), AI share of voice (SE Ranking), AI citation tracking (Profound), Bing Webmaster data and IndexNow, and multi-page Lighthouse (Unlighthouse). Some of these connect to paid services you bring your own account for.
Privacy: what leaves your machine?
Reports are saved locally, and the README says no SEO service or other third party sees your data unless you connect an extension or API yourself. The pages being analysed are sent to Claude, as with any Claude Code task, and some checks read public sources such as Wikipedia, Reddit and Common Crawl.
Should you use Claude SEO?
If you have Claude Code open anyway, it is a quick, free way to get a prioritised list of on-page, technical and AI-search fixes. Read the install script before you run it, check the GitHub releases and README for the current version, and treat the output as a starting point to review, not gospel.