Step 1 - Install the plugin
Log in to your WordPress admin dashboard and follow these steps to install the Similar AI internal linking plugin.
- a.Click Plugins in the left navigation, then click Add New.
- b.Click Upload Plugin and select the Similar AI plugin file provided by your account manager.
- c.Once the upload completes, click Activate to enable the plugin.
Step 2 - Add an internal linking block to a page
When creating or editing a post or page, add a Similar AI internal linking block through the Gutenberg editor. The block connects to the Similar AI service and automates intent-driven internal linking between related pages based on topical and geographic proximity.
Fill in the block settings with these fields:
API Key
Go to the Internal Linking view in the Similar AI dashboard. Enter a test page URL and look for the X-API-KEY value in the JSON request.
API URL
Use the default endpoint unless your Customer Success manager has provided a different one:
https://isentropic-snow-282609.ew.r.appspot.com/api/seo-related-searches/
Test URL
Enter any page from your site to verify the block is working correctly.
Position
Leave this as the default. If you have multiple internal linking modules on a single page, set the position number to choose which module to display.
Step 3 - Deploy to multiple pages with reusable patterns
To add the internal linking block across your entire site without editing each page individually, create a reusable block (called a Pattern in current WordPress versions) and embed it in your theme template.
- a.Create a reusable block containing the Similar AI internal linking block you configured in Step 2.
- b.Note the post ID of the reusable block. You can find this in the URL when editing the block, or by querying
wp_postsfor blocks of typewp_block. - c.Add the following snippet to your theme template (e.g.
footer.php), replacing1102with your reusable block post ID:
<div class="grid-container">
<h5 class="similarai-linking-header px-2 py-4">Similar AI's Related Links</h5>
<div id="similarai-block">
<?php $reusable_block = get_post( 1102 ); echo do_blocks( $reusable_block->post_content ); ?>
</div>
</div>Replace the post ID 1102 with the actual ID of your reusable block. Using the wrong ID will render an empty container.
Related guides
Depending on your WordPress setup, these guides may also be helpful:
Frequently asked questions
How does the Linking Agent decide which internal links to add to my pages?
The Linking Agent coordinates five specialized sub-agents that use Google Search Console data, SERP similarity analysis, crawl data, and revenue signals to identify high-value linking opportunities that improve traffic and product discoverability. It prioritizes links based on ranking potential, topical relevance, search demand, and revenue signals, and all suggestions can be reviewed before publishing.
Can I deploy internal linking patterns across thousands of product pages at once?
The Linking Agent coordinates multiple sub-agents to deploy consistent, data-driven linking strategies across your entire catalog without requiring page-by-page manual edits, with the Cluster Linking sub-agent specifically supporting URL-pattern-based rules for scalable deployment. This approach is especially useful for omnichannel retailers with 3,000 to 100,000 products.
What API configuration is needed to connect WordPress to Similar AI?
After installing the plugin, you’ll enter your Similar AI API key in the plugin’s settings panel to authenticate your site. The setup guide walks through endpoint configuration, and the Linking Agent determines relevance by coordinating sub-agents that analyze Google Search Console data, SERP similarity, crawl data, and revenue signals to focus on the most impactful sections of your store.
Ready to automate internal linking on WordPress?
Get the Similar AI plugin installed and start connecting your pages with relevant internal links. Our team can walk you through the setup.