Slim SEO WordPress SEO Publishing with Postly
Publish WordPress articles with Slim SEO: configure SEO titles, descriptions, canonical URLs and images through Postly. Learn API requirements and recovery steps.
How the workflow works
- Step 1
Install and configure Slim SEO on the destination WordPress site, then connect the site to Postly.
- Step 2
Choose Slim SEO in WordPress settings. For API or MCP requests, use seo_plugin: slim_seo; CSV and Sheets use wordpress_seo_plugin.
- Step 3
Add the article, SEO title, description, canonical URL, and featured image. Configure social previews separately when the plugin supports them.
- Step 4
Publish a test article or draft, review the delivery result, and inspect the public page after publishing.
How the Slim SEO integration writes SEO
Postly reads and merges the writable slim_seo metadata object before saving SEO values. The object must be exposed to authenticated WordPress REST requests so unrelated existing settings remain intact.
Featured images and social preview images
A featured image is a WordPress media attachment used by your theme. An Open Graph or X image controls a social preview and can be different. Add meaningful featured-image alt text, use an accessible image source, and check the final public page. An existing attachment ID must belong to the connected site.
Use the dashboard, CSV, Google Sheets, API or MCP
The same plugin choice follows each publishing workflow. Choose Slim SEO in the dashboard or set wordpress_seo_plugin to slim_seo in a fresh WordPress-specific CSV template. Google Sheets carries the same column. API and MCP use seo_plugin inside the WordPress settings object. Download a fresh template before each batch so new fields are available.
Troubleshooting and plugin limits
Slim SEO shares the search title and description with social previews in this integration. Separate social titles and descriptions cannot be applied. Existing noindex and other unrelated properties are preserved during the merge.
Verify the published result
Check the article URL, featured image, HTML meta description, canonical link and social image tags. Themes, another active SEO plugin, caching, and site permissions can affect the final output. If the article exists but SEO delivery is unconfirmed, repair its settings in WordPress. Search engines may choose a different search snippet even when the description is correctly saved.
Frequently asked questions
Can Postly bulk publish Slim SEO SEO settings?
Yes, use a WordPress-specific CSV template or Google Sheets with wordpress_seo_plugin set to slim_seo. Delivery still requires the plugin API setup and permissions described above.
Does Slim SEO need additional WordPress setup?
Postly reads and merges the writable slim_seo metadata object before saving SEO values. The object must be exposed to authenticated WordPress REST requests so unrelated existing settings remain intact.
Does a successful article mean every SEO field was applied?
No. Review the publishing receipt and any SEO warnings, then inspect the public page. WordPress can accept the article while the plugin rejects a metadata update.