Free, open-source SEO audits inside Claude Code.
Rank higher in Google and get cited by AI search.
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Claude SEO is a free SEO plugin for Claude Code. Give it any website and it runs a full SEO audit in 10 to 15 minutes, then hands you a clear action plan, sorted by what matters most.
It checks everything a good SEO consultant would:
- Technical SEO. Crawlability, indexing, sitemaps, robots.txt, redirects, page speed and Core Web Vitals.
- Content quality. E-E-A-T (experience, expertise, authority and trust), thin pages and topic coverage.
- Structured data. Finds, validates and writes Schema.org markup for rich results.
- AI search (GEO). How likely Google AI Overviews, AI Mode, ChatGPT, Perplexity and Gemini are to cite your pages.
- Local and e-commerce SEO. Google Business Profile, reviews, map pack, product pages and international sites.
Claude SEO is built from 26 sub-skills and 19 specialist agents, and up to 17 agents work on your site at the same time. Every recommendation explains why it matters and how you will know it worked.
Type /seo in Claude Code to see every command:
Run a full audit and watch the agents fan out across the site:
Watch the full demo on YouTube
The project's own site, claude-seo.md, audited with Claude SEO from day one: 10.8K Search Console clicks in its first 12 weeks and a 99 mobile PageSpeed score.
All 19 agents
| Agent | Role | Model | Command |
|---|---|---|---|
seo-technical |
Technical SEO Lead | Sonnet | /seo technical |
seo-content |
Content Editor | Opus | /seo content |
seo-schema |
Structured Data Engineer | Sonnet | /seo schema |
seo-sitemap |
Sitemap Architect | Sonnet | /seo sitemap |
seo-performance |
Performance Engineer | Sonnet | /seo audit |
seo-visual |
Visual QA | Sonnet | /seo audit |
seo-geo |
AI Search Analyst | Opus | /seo geo |
seo-agentic |
Agent Readiness Analyst | Sonnet | /seo agentic |
seo-local |
Local SEO Specialist | Sonnet | /seo local |
seo-maps |
Maps Analyst | Sonnet | /seo maps |
seo-google |
Google Data Analyst | Sonnet | /seo google |
seo-backlinks |
Link Analyst | Sonnet | /seo backlinks |
| Live data (extension) | Live Data Analyst | Sonnet | /seo audit |
seo-image-gen |
Image Producer (extension) | Sonnet | /seo image-gen |
seo-cluster |
Topic Strategist | Opus | /seo cluster |
seo-sxo |
Search Experience Designer | Opus | /seo sxo |
seo-drift |
Change Monitor | Opus | /seo drift |
seo-ecommerce |
E-commerce Specialist | Sonnet | /seo ecommerce |
seo-flow |
FLOW Strategist | Sonnet | /seo flow |
Built for:
- SEO agencies that want weekly audits for every client instead of quarterly ones, with change monitoring to catch problems in between.
- In-house SEO teams at SaaS, publishing and e-commerce companies that want a second pair of eyes before every review, AI search included.
- Freelance SEO consultants who want to run an audit on the first call and show a real score and the top fixes before writing a proposal.
30 core and extension commands in six groups. Open one to see what is inside; a few more extension commands are in the full command reference.
Audits and Planning (5 commands)
/seo setup: Create or refresh the isolated Python runtime and Chromium/seo doctor: Check runtime readiness without changing the system/seo audit <url>: Full website audit with parallel agents/seo page <url>: Deep single-page analysis/seo plan <type>: Strategic SEO planning (saas, local, ecommerce, publisher, agency)
Technical SEO (7 commands)
/seo technical <url>: Technical SEO audit across 9 categories/seo sitemap <url | generate>: Analyze or generate XML sitemaps/seo images <url>: Image optimization analysis/seo hreflang <url>: Hreflang and i18n SEO audit and generation/seo programmatic <url>: Programmatic SEO analysis and planning/seo google [command]: Google SEO APIs: GSC, PageSpeed, CrUX, Indexing, GA4, PDF reports/seo drift baseline | compare | history <url>: SEO drift monitoring with SQLite snapshots
Content and E-E-A-T (6 commands)
/seo content <url>: E-E-A-T and content quality analysis/seo content-brief <topic>: Content brief: target keywords, outline, internal links/seo cluster <keyword>: SERP-based semantic clustering/seo sxo <url>: Search Experience Optimization: page type, user stories, personas/seo flow [stage]: FLOW framework prompts (CC BY 4.0, evidence-led)/seo competitor-pages <url>: Competitor comparison page generation
Schema and AI Search (3 commands)
/seo schema <url>: Detect, validate and generate Schema.org markup/seo geo <url>: AI Overviews and Generative Engine Optimization/seo agentic <url>: Agent readiness: Lighthouse Agentic Browsing X/N, AI agent access, llms.txt, Markdown, WebMCP
Local, Links, Commerce (4 commands)
/seo local <url>: Local SEO: GBP, citations, reviews, map pack/seo maps [command]: Maps intelligence: geo-grid, GBP audit, reviews, competitors/seo backlinks <url>: Backlink profile analysis (Moz, Bing, Common Crawl)/seo ecommerce <url>: E-commerce SEO and marketplace intelligence
Extensions (5 commands)
/seo image-gen [use-case]: AI image generation for SEO assets/seo seranking [command]: AI Share-of-Voice across ChatGPT, Gemini, Perplexity, AI Overviews, AI Mode/seo profound [command]: LLM citation tracking with time-series data/seo bing [command] <url>: Bing Webmaster Tools + IndexNow URL submission/seo unlighthouse <url>: Multi-page Lighthouse runner, runs locally
The full comparison
| Doing it by hand | Hiring an agency | SEO audit software | Claude SEO | |
|---|---|---|---|---|
| Time per audit | 4 to 8 hours | 1 to 3 weeks | 10 to 45 minutes | 10 to 15 minutes |
| Cost | Billable hours | $2k to $15k+ per project | $99 to $999 a month | Free, with your Claude Code plan |
| Consistent checks | Depends on who does it | Depends on the team | Yes | Same checklist every time |
| What you get | A spreadsheet or PDF | A slide deck | A dashboard and CSV exports | Markdown, PDF and JSON files you keep |
| Your data stays with you | Yes | No | No | Yes, it runs on your machine |
| Covers AI search | Depends | Depends | Often months behind | Yes, follows Google's latest guidance |
| Each fix comes with a way to check it worked | Sometimes | Sometimes | Rarely | Yes |
Typical market prices, for illustration. Your numbers may differ.
- It learns your site. Claude SEO detects the type of business (SaaS, local, e-commerce, publisher or agency) and adjusts its checks.
- The team fans out. Up to 17 specialist agents audit the site in parallel: technical, content, schema, speed, AI search and more.
- You get a plan, not a pile of warnings. Findings are scored and sorted into a prioritized action plan. Each recommendation says what it is based on, what it depends on and how you will know it worked.
Reports are saved as Markdown, and /seo google report turns them into a polished PDF.
See a real report: the start of a schema audit
# Schema Markup Report: rankenstein.pro/about
| Metric | Value |
|---------------------|---------------------------------------------|
| JSON-LD Blocks | 3 |
| Schema Types | Organization, WebSite, SoftwareApplication |
| Critical Issues | 2 |
| Warnings | 5 |
| Passed Checks | 18 |
| Overall Grade | B+ (solid foundation, actionable gaps) |
**Critical Issue:** The `founder` property only includes Daniel Agrici.
Benjamin Samar (Co-Founder and Technical Director) is displayed on the page
but absent from the schema. This content-schema mismatch can confuse search engines.Want the details? Read the methodology and the architecture.
You need Claude Code 1.0.33 or newer. Run these three commands inside it:
/plugin marketplace add AgriciDaniel/claude-seo
/plugin install claude-seo@agricidaniel-claude-seo
/seo setup/seo setup prepares everything Claude SEO needs (its own Python environment and a headless browser) without touching the rest of your system. Run /seo doctor any time to check it.
Manual install: macOS and Linux
git clone --depth 1 https://github.com/AgriciDaniel/claude-seo.git
bash claude-seo/install.shOne-liner (curl, review then run):
curl -fsSL https://raw.githubusercontent.com/AgriciDaniel/claude-seo/main/install.sh > install.sh
cat install.sh # review before running
bash install.sh
rm install.shManual install: Windows (PowerShell)
git clone --depth 1 https://github.com/AgriciDaniel/claude-seo.git
powershell -ExecutionPolicy Bypass -File claude-seo\install.ps1Why
git cloneinstead ofirm | iex? Claude Code's own security guardrails flagirm ... | iexas a supply chain risk: downloading and executing remote code without verification. Thegit cloneapproach lets you inspectclaude-seo\install.ps1before running it.
Two versions. This public version is MIT licensed and free for everyone. AI Marketing Hub Pro members also get a private version with early access to new features. Members install it with:
/plugin marketplace add AI-Marketing-Hub/claude-seo /plugin install claude-seo@ai-marketing-hub-claude-seo /seo setup
Your first audit:
claude # start Claude Code
/seo audit https://example.com # full site audit with a prioritized plan
/seo page https://example.com/pricing # one page, in depth
/seo geo https://example.com # how ready you are for AI search
/seo schema https://example.com # check and generate structured data
/seo local https://example.com # local SEO and Google Business ProfileWhat is Claude SEO?
A free, open-source SEO audit tool that runs inside Claude Code. It checks technical SEO, Core Web Vitals, content quality, Schema.org structured data, AI search readiness, local SEO, e-commerce and international SEO, then gives you a prioritized action plan. It follows Google's own documentation, including the AI Optimization Guide.
Is it really free?
Yes. It is MIT licensed, with no per-site pricing, no usage limits and no tracking. You only need Claude Code. A few optional extensions connect to paid services where you bring your own account, but everything works without them.
Do I need API keys?
No. Claude SEO works out of the box. If you want real field data, you can connect free Google APIs (PageSpeed Insights, Chrome UX Report, Search Console and Google Analytics 4) with /seo google setup. Your keys stay on your machine.
How does it help with AI search like Google AI Overviews and ChatGPT?
Google says optimizing for AI search is still SEO, so Claude SEO starts with the basics that AI answers rely on: being indexed, fast and clear. Then /seo geo scores how easy your pages are to quote, checks that AI crawlers can reach them and looks at your brand's presence on Wikipedia, Reddit, YouTube and LinkedIn. /seo agentic checks how well AI agents can use your site.
Does it work on JavaScript sites like Next.js, React or Vue?
Yes. When a page needs JavaScript to show its content, Claude SEO opens it in a headless browser automatically, so single-page apps are audited as visitors see them.
How is it different from Screaming Frog or other SEO tools?
Crawlers like Screaming Frog crawl faster and deeper, and big SEO suites have their own backlink databases. Claude SEO does something else: it explains what it finds, sorts it by impact, covers AI search in depth and lets you ask follow-up questions in plain English. Many people use both.
Does my data leave my computer?
Claude SEO runs inside Claude Code, so the pages and data it analyzes are sent to Claude, Anthropic's model, the same as anything else you work on in Claude Code. Reports are saved as files on your machine. No SEO service or other third party sees your data unless you connect an extension or API yourself. Besides the site you audit, some checks read public sources such as Wikipedia, Reddit and Common Crawl. See PRIVACY.md for the full list.
Good to know: requirements, limits and uninstall
Requirements. Claude Code 1.0.33 or newer and Python 3.11 to 3.14. /seo setup installs the headless browser for you.
Cost of a full audit. Five agents that need more judgment run on Opus and the rest on Sonnet, so a full /seo audit uses more of your Claude plan than a single-page check. You can change any agent's model in its file under agents/.
Limits. Without Google API keys, Core Web Vitals are lab estimates and indexing is inferred from the page. Pages that load key content only after scrolling or clicking can give noisy results.
Uninstall. Installed as a plugin: /plugin uninstall claude-seo@agricidaniel-claude-seo. Installed manually:
git clone --depth 1 https://github.com/AgriciDaniel/claude-seo.git
bash claude-seo/uninstall.shOptional add-ons that bring in more data. Claude SEO works fully without them.
- Banana: AI images for SEO, from social previews to blog heroes (Claude Banana)
- SE Ranking: your share of voice in ChatGPT, Gemini, Perplexity and Google AI answers
- Profound: tracks when AI models cite your site
- Bing Webmaster: Bing data plus instant IndexNow submission
- Unlighthouse: Lighthouse scores for every page of your site
Setup guides live in extensions/.
| Project | What it does |
|---|---|
| Claude Blog | Writes and optimizes blog posts from your SEO findings |
| Claude Banana | AI image generation for SEO assets and posts |
| ChatGPT SEO | Turns a page, draft or SEO export into a sourced fix plan inside ChatGPT |
| FLOW | An evidence-led SEO framework with 42 AI prompts |
| AI Marketing Claude | Community suite for copy, email, ads and funnels |
Docs: Installation · Commands · Architecture · Troubleshooting · Extensions setup · Security · Privacy · Contributors
MIT License, see LICENSE. Contributions are welcome: read CONTRIBUTING.md first and mention the checks you ran in your pull request.
Built by Agrici Daniel, AI Workflow Architect, with help from the AI Marketing Hub Pro community.
