Claude SEO Review 2026: A Free SEO Audit Plugin for Claude Code

Description

What is Claude SEO?

Claude SEO is a free, open-source plugin that adds a full SEO audit to Claude Code, the coding agent from Anthropic. You type /seo audit with a site address, and the plugin sends specialist agents to check technical SEO, content, structured data and AI search readiness, then writes a prioritised plan. It is MIT-licensed, built by an independent developer, Agrici Daniel, and is not an Anthropic product (see the Claude SEO repository on GitHub and its MIT licence).

On 26 October 2026 the repository had about 21,400 stars and 2,976 forks. It was created on 7 February 2026, and its latest release, v2.5.0, shipped on 22 October 2026 (see the v2.5.0 release notes).

Category: GEO | SEO | AI SEO
Best For: SEO consultants, in-house teams and agencies that already use Claude Code and want a fast first-pass audit

Want the full picture? Read our full Claude SEO review with scores, pricing maths and alternatives.

Key Features of Claude SEO

Full-site audit

The audit renders your homepage, works out the business type, crawls up to 500 pages and hands the work to specialist agents. Everything rolls up into one SEO Health Score from 0 to 100, plus an action plan sorted from Critical to Low (see the audit skill in the repository).

19 specialist agents

Agents cover technical SEO, content, schema, sitemaps, performance, visual checks, AI search, local SEO, backlinks and more. According to the README, up to 17 can work on a site at once, and five of them run on the Opus model while the rest run on Sonnet.

AI search (GEO) checks

The /seo geo command reviews AI crawler access, citability and brand-mention signals. It also reports whether an llms.txt file exists, but the plugin gives that file no weight in its score, because Google says its Search does not use such files (see Google’s guide to AI features in Search).

Local, e-commerce and international SEO

Separate commands handle Google Business Profile and local signals, product pages and hreflang. Optional extensions add data from SE Ranking, Profound, Bing Webmaster and Unlighthouse.

Features as described in the Claude SEO README and repository, 26 October 2026.

How Claude SEO Works

• Install the plugin: two commands inside Claude Code
• Run setup once: /seo setup builds the Python runtime and a headless browser
• Audit a site: /seo audit https://yoursite.com
• Read the plan: reports are saved as Markdown files in a folder named after the domain

The README says a full audit takes 10 to 15 minutes. That is the project’s own figure, and we have not timed it (see the installation guide for requirements).

How Much Does Claude SEO Cost?

The plugin is free, with no per-site pricing or usage limits, according to the README. The real cost is Claude Code itself: Anthropic says you can use it with a Claude Pro, Max, Team or Enterprise plan, or a Console account that bills per token (see Anthropic’s Claude Code page). A full audit also uses more of your plan than a single-page check, because five agents run on Opus.

Who Should Use Claude SEO?

• SEO consultants who want a scored first audit before a proposal
• In-house teams who want a second pair of eyes before each release
• Agencies that want repeatable audits and change monitoring across clients
• Marketers already comfortable with Claude Code and a terminal

It is less suited to anyone who does not use Claude Code, or who needs a hosted dashboard, rank tracking over time or support from a company.

Pros and Cons of Claude SEO

Pros

• Free and MIT-licensed, with the whole repository open to inspect
• Actively maintained: six releases between 10 September and 22 October 2026
• Broad coverage in one command, from technical checks to AI search
• Plugin install is the default, and the audit output stays on your machine as files

Cons

• Needs Claude Code, so it is not free in practice for everyone
• One maintainer wrote most of the code, and installer verification is not planned until v2.6.0 (see the security policy)
• Scores and AI citation checks are heuristics, not Google metrics
• Headline results and the 10 to 15 minute audit time are the project’s own claims

Claude SEO vs Alternatives

For wider shortlists, see our 25 best AI SEO tools for 2026 and best SEO audit tools.

Getting Started with Claude SEO

• Run /seo doctor first: it checks the setup without changing anything
• Audit a site you own, and read the action plan before you change anything
• Connect the free Google APIs if you want real Core Web Vitals data instead of lab estimates
• Install from a release tag you have checked, and pin it

Related on DMS

• Read our full Claude SEO review for the score, the security notes and what we could not verify.
• Learn how skills work in our guide to using Claude skills for marketing.
• Browse more AI agent tools, AI search visibility tools and MCP-connected tools in our directory.

Frequently Asked Questions About Claude SEO

What is Claude SEO?
Claude SEO is a free, open-source plugin for Claude Code. One command, /seo audit, sends specialist agents to check a site’s technical SEO, content, structured data and AI search readiness, then writes a prioritised action plan.

Is Claude SEO free?
The plugin is free under the MIT licence, with no per-site pricing or usage limits. You still need Claude Code, which runs on a Claude plan or a Console account billed per token, and optional extensions use their own accounts.

Is Claude SEO made by Anthropic?
No. It is an independent open-source project by Agrici Daniel, and it runs inside Anthropic’s Claude Code.

What do I need to run Claude SEO?
Claude Code 1.0.33 or newer and Python 3.11 to 3.14. The /seo setup command installs the Python runtime and a headless browser.

Does Claude SEO check AI search visibility?
It checks AI search readiness, such as crawler access, citability and brand-mention signals. It does not track your mentions over time, so use a tracker such as Peec AI for that.

Where does my data go?
Pages and data the plugin analyses are sent to Claude, the same as anything else you do in Claude Code. Reports are saved as files on your machine, and extensions you connect send data to their own services.

How do I install Claude SEO?
Inside Claude Code, run /plugin marketplace add AgriciDaniel/claude-seo, then /plugin install claude-seo@agricidaniel-claude-seo, then /seo setup.

Final Verdict

Claude SEO is a credible, actively maintained way to get a scored first-pass audit inside Claude Code at no licence cost. Treat its AI search scores as guidance, install from a release you have checked, and remember that you still pay for Claude Code itself.

At a Glance

Tool Category: SEO & AI Search (GEO) Audits
Pricing: Free (MIT licence); needs Claude Code, which runs on a Claude plan or API usage
Best For: SEO consultants, in-house teams and agencies that already use Claude Code
Key Benefit: A scored SEO and AI search audit with a prioritised plan from one command

Listing on Digital Marketing Supermarket: digitalmarketingsupermarket.com
Visit Claude SEO: github.com/AgriciDaniel/claude-seo
Category Tags: GEO, SEO, AI SEO, AI Agents, MCP

This review is based on publicly available information from github.com/AgriciDaniel/claude-seo and the sources linked above as of 26 October 2026. Digital Marketing Supermarket is an independent directory. This review has not been sponsored or paid for by AgriciDaniel (independent open-source maintainer), and we have not tested Claude SEO hands-on.