The Best Claude Code Agents for SEO in 2026
SEO is a pile of different jobs: technical fixes, structured data, keyword research, content, internal links, performance. That makes it a perfect fit for Claude Code subagents — one specialist per job, each with its own instructions and tools.
Here are the ten SEO agents we'd set up first, and how to combine them.
1. Technical SEO auditor
Checks every page's title, description, h1, canonical and robots meta, plus sitemap and robots.txt. Read-only, so it reports without editing. This one catches the expensive mistakes, like a canonical domain that doesn't match your sitemap.
2. Structured data (schema) writer
Adds and validates JSON-LD: Article or BlogPosting for posts, BreadcrumbList, FAQPage where the FAQ is visible, Organization on the homepage. Make sure it never puts page-specific schema in a shared layout.
3. Metadata optimizer
Rewrites titles under ~60 characters and descriptions under ~155, keeps the keyword near the front, and sets per-page Open Graph and Twitter tags so shares don't inherit the homepage.
4. Keyword researcher
Groups keywords by search intent and suggests which page should target which phrase. Give it web search, and feed it your Search Console queries once you have data.
5. Content brief writer
Turns a keyword into an outline: intent, headings, questions to answer, examples to include and pages to link to. Briefs keep content focused and avoid thin pages.
6. Internal linker
Finds related pages that don't link to each other and suggests natural anchor text. Strong internal links help Google understand which pages matter.
7. Image and performance optimizer
Finds oversized images, missing alt text, missing width/height and heavy scripts. On our own site it found a 969 KB logo displayed at 36 pixels.
8. Sitemap and indexing manager
Keeps the sitemap complete with real last-modified dates, adds noindex to pages that shouldn't rank, and checks every sitemap URL returns 200 without redirecting.
9. Comparison and alternatives page writer
Writes fair "X vs Y" and "alternatives" pages from verified facts, with dates on every price. These pages target high-intent searches but go stale fast, so this agent should also flag pages due for re-checking.
10. Content refresher
Finds outdated years, prices and facts across your content and proposes updates. Fresh, accurate pages hold rankings longer.
Wire them together
Give each agent a clear description and the right tools, then create one /seo-audit skill that runs the auditor, collects findings, and hands fixes to the right specialist. Add a browser MCP server so auditors can check live pages, not just source.
---
name: seo-audit
description: Run a full SEO audit and fix the issues found
disable-model-invocation: true
---
1. Build the site.
2. Use the technical-seo-auditor subagent to audit every page.
3. Send metadata issues to metadata-optimizer and schema issues to
schema-writer. Send image issues to the image optimizer.
4. Rebuild and re-run the audit to confirm every fix.
5. Summarise what changed and what still needs a human decision.Get all of them ready-made
Building and tuning ten SEO agents takes time. claudeagents' SEO kit includes 50 SEO specialists — these ten and many more — plus slash commands like /seo-audit, /keyword-research and /content-brief, all reading from your CLAUDE.md.
Frequently asked questions
What is the best Claude Code agent for SEO?
Start with a read-only technical SEO auditor. It finds the costly site-wide problems first. Then add metadata, schema and internal-linking agents.
Can Claude Code agents do keyword research?
They can group keywords by intent and plan which page targets which phrase, especially with web search and your Search Console data. They don't have search-volume data unless you provide it.
Should SEO agents edit my site automatically?
Let auditors report only, and give edit access to specific fixer agents. Review the diff before you deploy.
Do I need MCP servers for SEO agents?
Not to start. Agents can audit your code and build output. A browser MCP server helps them check live pages too.
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