Devin SEO: Hand Off the Fixes, Keep the Data Real

Devin is at its best with a well-scoped task and room to finish it. SEOmatic turns vague SEO asks into those tasks: a list of concrete issues, each with the page, the evidence and the fix, that Devin can work through.

An example on the Acme Plumbing demo site. You ask Devin:

“Audit the live site with SEOmatic and turn what you find into a fix plan, one commit per issue.”

Devin calls SEOmatic:

• site_audit: crawl of 30 pages on the live site
• gsc_performance: clicks by page, Sep 12 to Oct 9 (28 days)

Devin answers:

The crawl of 30 pages found 4 issues worth a commit, ordered by the clicks at stake (Sep 12 to Oct 9, 28 days):

1. Duplicate titles on 6 service pages, including /water-heater-repair (148 clicks). The ServicePage template hardcodes the site name as the whole title.
2. /emergency-plumber links to a 404 (/24-hour-service) from the footer, on every page.
3. Missing description on /drain-cleaning-cost (61 clicks). The CMS field exists, the template never reads it.
4. 3 old blog URLs redirect twice before landing.

I will open one commit per issue on a branch and re-run the audit on the preview URL before you merge.

Also try:

• “Rewrite our five lowest-CTR titles from real queries”
• “Why are these URLs excluded from Google?”
• “Fix the broken internal links in the templates”
• “Re-audit the pages we changed last week”

Give Devin tasks like these:

• “Audit our live site with SEOmatic and fix every issue our code causes, one commit per issue.”
• “Rewrite the titles of our five pages with the lowest CTR, using their top queries from Search Console.”
• “Find out why these URLs are excluded from Google's index and fix the cause.”
• “Fix the broken internal links SEOmatic finds on the live site.”
• “We moved /es/ to /es-mx/. Which old URLs are still indexed, and which return a 404?”
• “Add missing meta descriptions to the pages we created this month.”

1. You add SEOmatic to Devin's MCP config, or run devin mcp add.
2. The first time Devin uses SEOmatic, it runs the sign-in and you approve it.
3. Devin calls SEOmatic for the audit, Search Console data or index status the task needs, with the exact date range behind every number.
4. It works the fixes in your codebase, and you review them as usual.
5. It re-checks the live pages to confirm the result.

One config entry in Devin Desktop or the CLI, or a form in Devin on the web.

1. Add SEOmatic to Devin's MCP config. Add a seomatic server with the url https://app.seomatic.ai/api/mcp under mcpServers in ~/.config/devin/mcp_config.json (every project) or .devin/mcp_config.json (one repo), as in the snippet below. Or run devin mcp add -s user seomatic https://app.seomatic.ai/api/mcp; without -s user it is saved for the current repo only. In Devin on the web, open Customize > MCPs > Add MCP > Add custom MCP, choose HTTP, paste the URL, pick OAuth and save.
2. Trigger the first use. Ask Devin something that uses SEOmatic, for example “Audit my site with SEOmatic.” On the web, click Connect on the SEOmatic entry instead, then Test tools.
3. Sign in. Approve the SEOmatic sign-in when it appears, creating a free account if you need one, and pick your site. If a server shows Needs auth, click Authenticate; devin mcp login seomatic does the same from the CLI.
4. Connect Search Console. If your workspace has no Search Console yet, SEOmatic returns a one-click connect link. No Google Cloud project is needed.

Pick the Desktop and CLI config. It is one entry, it signs in with OAuth so no key sits in a file, and Devin asks you before each SEOmatic tool call. Working in Devin on the web? Use Customize > MCPs; it is the same server and the same sign-in.

This page is about Devin Desktop and Devin CLI, the coding agent from Cognition.

• Windsurf users: Windsurf became Devin Desktop in June 2026 and its old Cascade agent was removed in September 2026, so the setup on this page is the one to follow. The old serverUrl key belonged to Cascade.
• Cursor is a separate AI code editor with its own mcp.json: Cursor SEO.
• Claude Code and Codex are terminal-first agents: Claude Code SEO and Codex SEO.

All of them connect to the same SEOmatic server, so your workspace, your free questions and your approvals carry across.

Connecting is free, and so is the SEOmatic account behind it: no card. Free covers the diagnosis with no limit: Search Console reports and insights, site audits of up to 30 pages, live page analysis, and your AI visibility results.

Live market data, like keyword volumes, backlink profiles and competitor domains, uses free questions: 5 a month, plus a one-time 10 bonus questions when you connect Google Search Console. One question covers up to 5 lookups.

Paid plans remove the question limit and add the treatment: agents stage fixes on your site (titles, descriptions, content updates, technical fixes, internal links) and run campaigns and fresh AI visibility scans. Every paid plan starts with a 14-Day Trial for $1, credited to your first payment. See pricing.

Search Console reads and audits are free with no limit, however many tools a Devin task calls. Free questions only cover live market data, and one question covers up to 5 lookups. Start a trial when you want SEOmatic's agents to stage fixes for a bigger backlog.

Devin's code changes go through your review. Anything SEOmatic would change on a live site through a connected CMS is staged, never pushed. A staged change is a proposal: it says what will change and why, and in Approval mode nothing touches your site until you approve it. The assistant records your decision, and it is told never to approve anything on its own judgment. Approved fixes start within seconds, the page's previous state is stored, and any applied change can be rolled back. Changes that could take a page out of Google, like a noindex, need an extra explicit confirmation.

Other coding agents: Claude Code, Codex, Cursor and Gemini CLI. Explore the site audit, technical SEO fixes and page indexing. Headless runs: the SEOmatic CLI. All assistants: AI assistants. Full reference: MCP docs.

Using another agent? See Claude Code, Codex, Cursor, or every AI agent.