System Requirements and Compatibility
The free plugin and the paid store add-ons have different runtime requirements. A feature may also need a newer WordPress API than the base plugin.
Supported runtime requirements
| Component | Requirements |
|---|---|
| citelayer® Free | WordPress 6.4+, PHP 7.4+ |
| WooCommerce add-on | Active free plugin, PHP 8.1+, WooCommerce 8.0+; combined WordPress minimum 6.4 |
| EDD add-on | Active free plugin, PHP 8.1+, EDD 3.0+; combined WordPress minimum 6.4 |
| Free MCP abilities | WordPress 6.9+; MCP client transport through a separate adapter |
Verify your environment
- Open Tools → Site Health → Info and check WordPress and PHP.
- Confirm that the store platform and free plugin are active before activating an add-on.
- Check the plugin version in Plugins rather than relying only on an old product screenshot.
- Use the scanner and endpoint checks on your actual host.
SEO integration
The free plugin recognizes Yoast SEO, Rank Math, All in One SEO, The SEO Framework and Slim SEO. The integration differs by feature and provider. Read the ownership and output checks before changing enhancement/replacement modes. SEOPress no longer has a dedicated compatibility path.
Builders, caching and hosting
A builder can alter the rendered content and a cache or server rule can intercept a response before WordPress runs. Test your important page and product types directly. Do not treat a list of detected plugins as proof that every combination has been tested.
Next step
Continue with the quick start checklist, or check the common questions. For a reproducible problem, send the plugin versions, affected URL, expected result and actual response through Support. Do not include passwords, license keys or customer details.
Reviewed 6 October 2026 against citelayer® Free 1.13.5, WooCommerce add-on 1.2.19 and EDD add-on 1.2.1. Features depend on the active components and settings on your site.