by Sheesh Labs AI 0 (0 reviews)

Hydrogen SEO – AI SEO Plugin for Schema, Sitemaps, llms.txt & AEO

Name: Hydrogen SEO – AI SEO Plugin for Schema, Sitemaps, llms.txt & AEO
Author: Sheesh Labs AI

AI SEO plugin for WordPress: meta titles, descriptions, schema, XML sitemaps, image alt text and llms.txt for Google and AI search (AEO).

Hydrogen SEO ranks #57,174 among WordPress.org plugins with 0+ active installations, is #1,670 of 2,168 in the Analytics category, and was last updated Oct 15, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1.4

v0.0.29 Current Version v0.0.29

Updated 2 weeks ago Last Update on 15 Oct, 2026

Refreshed 2 days ago Last Refreshed on

#1,670 of 2,168 in Analytics Downloads -37.3% this week Actively maintained

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Rank

#57,174

— No change

Active Installs

-100%

KW Avg Position

129

1 worse

Downloads

1.1K

+3 today

Support Resolved

— No change

Rating

Review 0 out of 5

0 (0 reviews)

Next Milestone 10

Total Progress 30%

0+ 10+

29,606

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Current #57,174

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

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Plugin Details

Version: 0.0.29
Last Updated: Oct 15, 2026
Requires WP: 6.7+
Tested Up To: 7.1.4
PHP Version: 7.4 or higher
Author: Sheesh Labs AI

Support & Rating

Rating: ☆ ☆ ☆ ☆ ☆ 0
Reviews: 0
Support Threads: 0
Resolved: 0%

Keywords

aeo ai seo schema seo xml sitemap

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Frequently Asked Questions

Common questions about Hydrogen SEO – AI SEO Plugin for Schema, Sitemaps, llms.txt & AEO

No. SEO titles and meta descriptions, schema markup, XML sitemaps, robots.txt, redirections, social previews and the site health checks all work out of the box. Only the AI features — AI meta descriptions, alt text, content, images and Hydrogen AI — need a free API key from hydrogenseo.com.

The plugin is free and GPL licensed. The AI features run on the Hydrogen SEO API, which gives you free credits on signup; heavier use needs a paid plan. Nothing in the plugin stops working when you run out of credits — only the AI generation pauses.

Open the Hydrogen SEO panel while editing a post or page. Six fields have a small AI button beside them: the SEO title and meta description, the Open Graph title and description, and the X (Twitter) title and description. Click it and you get several suggestions with character counts. Choose one and it fills the field — you can still edit it afterwards, and nothing is published until you save.

Hydrogen AI is a chat agent that reads and edits your site's SEO through the plugin's own registered tools: page metadata, structured data, sitemaps, robots rules, redirects, alt text and featured images. It runs under a policy you choose. By default it asks for confirmation before anything destructive, and you can set it to ask before every write or to run read-only checks. It cannot act at all until you switch on AI Abilities and connect it.

Hydrogen AI runs on the Hydrogen SEO service, so the service needs a way to call back into your site to read and change SEO data. WordPress's built-in application passwords are that mechanism — a revocable credential, separate from your login password, that never gives anyone access to your admin screens. When you connect the agent, the plugin creates one application password named Hydrogen SEO Agent for the WordPress user doing the connecting, and sends it to the service over HTTPS so it can authenticate its calls back to your site. Any earlier credential with the same name is deleted first, so only one ever exists. The service verifies the credential by calling your site before it stores anything, and it stores it encrypted. See the "Privacy" and "External services" sections for the specifics.

Two ways, and either is enough: In the plugin, open Hydrogen SEO → Hydrogen AI and disconnect. The plugin deletes the Hydrogen SEO Agent application password from your site and clears the stored connection. In WordPress, go to Users → Profile → Application Passwords and revoke Hydrogen SEO Agent directly. You can also switch AI Abilities off, which blocks every agent call at the gate regardless of any credential.

llms.txt is a file at the root of your site that states how your content may be crawled and used by AI systems, in the way robots.txt does for search engines. It is a proposed convention, not a ratified standard, and honouring it is up to each crawler. Hydrogen SEO gives you an editor for it so the file exists and says what you want it to say.

Pick a schema type in the Schema screen or in the post's SEO panel and fill in the fields; the plugin outputs valid JSON-LD for you. Article, Product, FAQ, HowTo, Recipe, Course, Event, Local Business and Breadcrumbs are all supported, and the AI can draft your business details for you.

Yes. Go to Hydrogen SEO → Tools → Import SEO Data, pick the plugin, click Preview to see exactly what would change, then Start import. Global settings, per-post and per-term SEO data and redirects are imported, including data from Rank Math PRO, Yoast SEO Premium, SureRank Business, All in One SEO Pro, Slim SEO Pro and SEOPress PRO. Every import can be undone from the same screen.

It works alongside other plugins, but running two SEO plugins that both output titles, meta tags or schema can produce duplicate output. Import your data with Tools → Import SEO Data and let it deactivate the old plugin once the import completes, so Hydrogen SEO is your only SEO plugin.