geomatic

GEOmatic AI is a lightweight, zero-telemetry plugin that prepares your WordPress site for AI indexing. It focuses on just three optional features — nothing else:
<ol>
<li>JSON-LD Schema: Outputs minimal Organization and WebSite schema to help AI crawlers understand your site.</li>
<li>AI Sitemap: Serves a compact XML sitemap at /ai-sitemap.xml (home, pages, posts) with sensible defaults.</li>
<li>AI-Friendly HTML Attributes: Adds unobtrusive <code>data-llm</code> attributes to key headings and long paragraphs to improve machine readability.</li>
</ol>
No tracking, no external API calls, no code obfuscation.
Highlights
<ul>
<li>Small codebase, no bloat.</li>
<li>All settings stored in a single options entry.</li>
<li>Works with any theme and most caching setups.</li>
</ul>

GEOmatic AI

AI-first SEO: minimal JSON-LD, an /ai-sitemap.xml, and AI-friendly HTML attributes. No tracking.

Tim van Iersel

Adds custom field to the post & pages editor for custom JSON-ld schema markup also known as structured data. The plugin also validates if the JSON is formated correctly. <a href="http://coderisk.com/wp/plugin/websitescanner-custom-schema/RIPS-8iSfZmxGFd" rel="nofollow ugc"></a>
Add your own JSON-ld on every page, post and custom post without the <code><script></code> to show your own custom Schema markup.
Works well with the following plugins:
<ul>
<li><a href="https://wordpress.org/plugins/remove-schema/" title="Remove Schema WordPress plugin" rel="ugc">Remove Schema</a></li>
</ul>
Usecases:
With the combination of the WordPress plugin it’s easy to overwrite the schema on a specific page. 
If a plugin like Yoast SEO or other plugin or theme that generates schema you can disable the schema and add your own custom schema to the page.

Websitescanner Custom Schema

Adds custom field to the post & pages editor for custom JSON-ld schema markup also known as structured data.

GEOmatic AI vs Websitescanner Custom Schema