Claude SEO: The Free 24,866-Star Plugin That Runs a Full SEO Audit Inside Claude Code

A free, open-source plugin for Claude Code has passed 24,866 stars on GitHub. It is called claude-seo, and its promise is simple: give it any website and it runs a full SEO audit in 10 to 15 minutes, then hands over a prioritised action plan. The project describes itself as "free, open-source SEO audits inside Claude Code" with the aim to "rank higher in Google and get cited by AI search". The star count was checked live on 31 October 2026 — 24,866 stars and 3,303 forks — so if you have seen an older figure of around 17,700 stars, that number is stale. The repository was created on 7 February 2026, carries an MIT licence, and is not a launch-today story: it is a high-star open-source project that has kept growing. This article is about the repository itself — what it contains, how to install it, and who it is built for — not about any one site's SEO work. (INORYVA's own blogging uses skills from this family; the story here is the public repo.)

Illustration generated for INORYVA — not a real product screen or workplace.

What it does: a full audit, then a plan

Most SEO tools hand you a dashboard. Claude-seo works differently because it lives inside Claude Code, Anthropic's command-line coding tool: you point it at a website and it audits the site the way an SEO consultant would, then produces the fixes as a prioritised list rather than a pile of charts. The audit covers technical SEO, content quality and E-E-A-T, schema markup, GEO and AEO (optimising for AI answers and citations), agent readiness, backlinks, local SEO, e-commerce and international SEO, plus Google APIs and PDF or Excel reporting. The 10-to-15-minute figure is the project's own claim for a full audit, and it depends on the size of the site — a ten-page brochure site and a ten-thousand-page store are not the same job.

The practical difference is what happens after the audit. Because the plugin runs inside a coding tool, its output is meant to be acted on in the same session: fixes to pages, schema and metadata can be drafted and applied rather than exported to a spreadsheet for later. That is the core idea — audit and action in one place — and it is why the project is built as a plugin rather than a standalone web app.

What is inside: 26 skills, 19 agents, 30 commands

The repository contains 26 sub-skills and 19 sub-agents, with 30 core and extension commands organised in six groups. The command names tell you the coverage: /seo audit, /seo technical, /seo content, /seo schema, /seo geo, /seo local, /seo backlinks and /seo ecommerce among them. Each skill is a focused playbook — one for technical checks, one for content, one for schema, and so on — and the agents are the workers that run them, with up to 17 agents working in parallel according to the README. Nine optional extensions add live SEO data from external sources.

Two parts of the contents deserve attention because they show where SEO is heading. The first is GEO/AEO: skills for getting cited by AI search engines, not just ranked in Google's ten blue links. The second is agent readiness — Lighthouse Agentic Browsing, WebMCP and llms.txt — which is about making a site understandable to AI agents that browse and act on behalf of users. Whether or not you believe AI search will replace traditional search, a plugin that treats both as first-class work is aimed at the argument as it stands in late 2026, not at SEO as it was five years ago.

The project's own results — stated as its claims

The README's "Real results" section reports that the project's own site, claude-seo.md, got 10.8K Search Console clicks in its first 12 weeks and a 99 mobile PageSpeed score. Those are the project's own claims about its own site, not independent measurements, and they should be read that way: a single site, run by the people who built the tool, is the best possible showcase and the weakest possible proof at the same time. What they do establish is that the author uses the tool on a real site and publishes the numbers.

The README also carries a pricing comparison against agency and tool costs, labelled "typical market prices, for illustration". The large agency figure in that comparison is an illustration, not a measured fact, and this article does not repeat it as one. The honest comparison is simpler: the plugin itself is free and open source, and its cost is the time to run it plus a Claude Code subscription or usage, which the repo does not price.

Illustration generated for INORYVA — not a real product screen or workplace.

How to install it

Installation needs Claude Code version 1.0.33 or newer. From the README, the commands are: /plugin marketplace add AgriciDaniel/claude-seo, then /plugin install claude-seo@agricidaniel-claude-seo, then /seo setup. That is the whole setup as documented — no separate app to download, no account to create with the project itself. The plugin runs where Claude Code runs, so it inherits Claude Code's own requirements and limits, including whatever model access the user already has.

One practical note: this is a developer-shaped tool. It assumes comfort with a terminal and with Claude Code, and its output assumes someone will review and apply the changes it proposes. A site owner who has never opened a command line will find a hosted SEO tool friendlier. A developer, an agency technical lead, or an in-house SEO who already works in code will find this one fits the workflow they already have.

Who it is built for — and its limits

The project is built for agencies, in-house SEO teams and freelance consultants — people who audit sites repeatedly and want the audit repeatable. For them, the value is consistency: the same 26 skills run the same checks on every site, and the action plan format stays the same from client to client. For a single small site, the same machinery may be more than needed; a one-off audit from a hosted tool could be faster to start.

The limits are the usual ones for an open-source project. There is no support desk and no service guarantee; the repo's issue tracker and its 412 commits are the evidence of maintenance, not a promise of it. No latest release or commit date is stated in this article because none was verified at checking time — the framing rests on the live star count and contents, not on a claim of freshness. And like every SEO tool, its recommendations are only as good as the judgement applied to them: an audit that says "add schema" still needs a human to decide which schema is true for the page.

Illustration generated for INORYVA — not a real product screen or workplace.

Key Takeaways

• Claude-seo is a free, MIT-licensed SEO plugin for Claude Code: 24,866 stars and 3,303 forks as checked live on 31 October 2026 (the ~17,700 figure is stale). Created 7 February 2026; not a launch-today story.
• It runs a full SEO audit in a claimed 10 to 15 minutes and returns a prioritised action plan, covering technical SEO, E-E-A-T, schema, GEO/AEO, agent readiness, backlinks, local, e-commerce and international SEO.
• Inside: 26 sub-skills, 19 sub-agents, 30 commands in six groups, nine optional extensions for live data, and up to 17 agents working in parallel.
• The project's own results (10.8K Search Console clicks in 12 weeks, 99 mobile PageSpeed) are its own claims about its own site — read them as a showcase, not independent proof.
• Install needs Claude Code 1.0.33+ via the plugin marketplace commands in the README. Built for agencies, in-house teams and consultants who already work in code; no support desk, no freshness claim made here.

Conclusion

Twenty-four thousand stars do not make a tool good; they make it worth a look. Claude-seo earns the look because it matches how SEO work is actually changing: audits that end in fixes, not reports, and optimisation for AI answers alongside Google rankings. If you already live in Claude Code, it costs nothing to try. If you do not, the repo is still a useful map of what a complete SEO audit covers in 2026 — and that map is free.

Sources

• AgriciDaniel/claude-seo, GitHub repository (24,866 stars, 3,303 forks, 170 watchers, 412 commits, 30 releases, MIT, created 7 Feb 2026; 26 sub-skills, 19 sub-agents, 30 commands; 10–15 minute audit claim; install commands; "Real results" claims): https://github.com/AgriciDaniel/claude-seo
• Claude Code, Anthropic (the command-line tool the plugin runs inside; version 1.0.33+ required per the repo README): https://claude.com/product/claude-code