Best Claude skills for SEO

Quick picks

• A safe start: Corey Haines' marketingskills. Its seo-audit, ai-seo and programmatic-seo are the three most installed SEO skills on skills.sh.
• A full audit in one command: Claude SEO. /seo audit <url> sends up to 17 specialist agents across the site and returns a prioritized plan.
• AI search (GEO): GEO-SEO Claude for agency-style audits and PDF reports, or GEO Optimizer for a 0–100 readiness score you can run in CI.
• Your own numbers: Ian Nuttall's seo, a free Search Console MCP server and CLI; SE Ranking's skills if you already pay for SE Ranking.
• Technical SEO by the book: Addy Osmani's seo skill, built on Lighthouse audits and Google's guidelines.
• Running SEO every day, not once: Marketing Team Skills (ours) covers picking keywords a new site can win, one page per keyword, index pushes and a daily report.

SEO skills for Claude Code compared

Stars and licenses from the GitHub API on November 8, 2026, rounded. For repositories with many skills, stars are for the whole repository.

The most installed SEO skills

Installs through the skills CLI, from the skills.sh registry on November 8, 2026. Plugins installed with /plugin install, such as Claude SEO, mostly don't show up here, so treat these as a floor.

• seo-audit (marketingskills): about 249,000
• ai-seo (marketingskills): about 160,000
• programmatic-seo (marketingskills): about 158,000
• site-architecture (marketingskills): about 130,000
• schema (marketingskills): about 86,000
• seo-geo (opc-skills): about 56,000
• seo (Addy Osmani's web-quality-skills): about 54,000
• seo (Ian Nuttall): about 24,000
• seo (Claude SEO's main skill): about 10,000

How to set up Claude Code for SEO

1. Install one method skill

   Pick marketingskills' SEO skills or Claude SEO, not both: they cover the same audits and will disagree. Add Addy Osmani's skill only if you want Lighthouse-style technical checks on top.

   # Corey Haines' marketingskills: just the SEO skills
   npx skills add coreyhaines31/marketingskills --skill seo-audit ai-seo programmatic-seo schema site-architecture
   
   # Claude SEO (inside Claude Code)
   /plugin marketplace add AgriciDaniel/claude-seo
   /plugin install claude-seo@agricidaniel-claude-seo
   /seo setup
   
   # Your real Search Console data (Ian Nuttall's seo, hosted MCP)
   claude mcp add --transport http seoskill https://seoskill.dev/mcp
   
   # Addy Osmani's Lighthouse-based SEO skill
   npx skills add addyosmani/web-quality-skills --skill seo
   
   # Marketing Team Skills (ours): daily SEO routines
   npx skills add ummydev/marketing-team-skills

2. Connect real data

   Without data, an agent's keyword ideas are guesses. Connect Search Console (Ian Nuttall's seo or Claude SEO's /seo google), and a keyword source such as DataForSEO, Ahrefs or SE Ranking if you need search volume.

3. Audit, then fix in order

   Run the audit on your own site, then ask the agent to fix the top items and re-run the same checks. Indexing and ranking changes show up in Search Console days or weeks later, not in the session.

4. Turn it into a routine

   SEO pays off from doing the same loop every week: pick a keyword, write the page, push it to the index, read the numbers. Write the loop down in CLAUDE.md or a skill, and run it on a schedule. See how to build an AI SEO agent.

Source: Corey Haines' marketingskills

What our SEO agent uses on crewmark.ai

Crewmark's own SEO is done by an AI employee: a Claude Code session with the SEO specialist role, working shifts on a heartbeat. Its repository has 25 of Corey Haines' skills installed, plus our Marketing Team Skills.

• On November 7, 2026 it ran marketingskills' audit skills on crewmark.ai. The audit flagged that the site had no public pricing and no privacy page; a pricing page went live the next day.
• Every day it picks keywords from Google autocomplete and Search Console (keyword-research), writes one page per keyword (seo-page), submits new URLs to IndexNow, Bing and Google (index-push) and posts a daily report (seo-daily-report).
• The site is new, so we can't show ranking results yet. We'll add Search Console numbers to this page once there are some worth showing.

Things to know before installing

• Data skills send your data somewhere: Ian Nuttall's seo, NotFair and Ryze connect through their hosted MCP servers, and SE Ranking and DataForSEO bill per credit. Large SE Ranking runs can use thousands of credits, per its README.
• GEO-SEO Claude and Agentic SEO Skill install with curl ... | bash. Download the script and read it before running it, as Claude SEO's README recommends for its own installer.
• Don't let a skill buy links. Illyism's seo-skills includes linkdr, which buys backlinks from the author's service; paid links that pass ranking credit break Google's spam policies.
• Result numbers in READMEs, such as traffic gains, are the authors' own claims. Claude SEO's report of 10.8K Search Console clicks in 12 weeks is for its own site.
• Some free skills sell something next to them: Claude SEO and GEO-SEO Claude promote paid communities, and GEO Optimizer has a Pro plan from $19 a month. The skills themselves are open source.
• Anthropic doesn't publish an SEO skill; none of these are official.

Give the skills an SEO specialist that works every day

A skill makes one session better at SEO. Crewmark turns Claude Code or Codex into an AI SEO specialist with a goal in numbers, such as 10% more Search Console clicks a month, working hours and a board of pages to write; it wakes on a heartbeat, takes the next issue and messages you when it needs an approval.

1. Hire the SEO specialist role

   Its brief, goal and daily routine come set up; see the AI SEO specialist and the AI marketing agent.

2. Install your SEO skills in the repository

   The employee uses the skills in .claude/skills like any session does. Start with Marketing Team Skills.

3. Review pages and reports, not prompts

   Approve new pages and read the daily report on the board. Read what an AI employee is.

Claude SEO skills FAQ