Title: 42flows SEO Meta Author: 42flows Published: April 14, 2026 Last modified: May 6, 2026 --- Search plugins ![](https://s.w.org/plugins/geopattern-icon/42flows-seo-meta.svg) # 42flows SEO Meta By [42flows](https://profiles.wordpress.org/42flows/) [Download](https://downloads.wordpress.org/plugin/42flows-seo-meta.1.2.1.zip) * [Details](https://vec.wordpress.org/plugins/42flows-seo-meta/#description) * [Reviews](https://vec.wordpress.org/plugins/42flows-seo-meta/#reviews) * [Installation](https://vec.wordpress.org/plugins/42flows-seo-meta/#installation) * [Development](https://vec.wordpress.org/plugins/42flows-seo-meta/#developers) [Support](https://wordpress.org/support/plugin/42flows-seo-meta/) ## Description 42flows SEO Meta enables REST API write access to SEO meta fields for posts and pages. It auto-detects your active SEO plugin (Yoast SEO, Rank Math, or All in One SEO) and registers only the relevant meta fields with `show_in_rest`. This plugin is required if you use [42flows](https://42flows.com) to publish SEO- optimized content to your WordPress site. Without it, SEO titles, meta descriptions, and focus keyphrases cannot be set via the REST API. #### Supported SEO plugins * **Yoast SEO** — `_yoast_wpseo_title`, `_yoast_wpseo_metadesc`, `_yoast_wpseo_focuskw` * **Rank Math** — `rank_math_title`, `rank_math_description`, `rank_math_focus_keyword` * **All in One SEO** — `_aioseo_title`, `_aioseo_description`, `_aioseo_keywords` #### What it does * Detects which SEO plugin is active on your site * Registers that plugin’s meta fields with `show_in_rest => true` for posts and pages * Adds `sanitize_callback` (sanitize_text_field) and `auth_callback` (requires edit_posts capability) * Does nothing if no supported SEO plugin is detected #### What it does NOT do * Does not modify your existing SEO data * Does not add any admin pages, settings, or UI * Does not load any JavaScript or CSS * Does not store any data #### Companion plugin installation and upgrades When your site is connected to [42flows](https://42flows.com), 42flows may request that this plugin install, activate, or upgrade a companion plugin (`42flows-content`) that enables render-time features for posts delivered by the 42flows pipeline (schema markup, attribution footer, page-optimizer REST surface). The companion plugin is downloaded from `https://42flows.com/plugins/42flows-content-latest.zip` via the`/ wp-json/42flows/v1/install-companion` REST route. The route requires the requesting user to hold: * `install_plugins` and `activate_plugins` for fresh installs (typically Administrator role) * `delete_plugins` additionally when a `min_version` parameter is supplied that exceeds the currently-installed companion version, because the upgrade path deletes the existing companion folder before reinstalling The companion zip URL is hard-coded in the plugin source — it is never user-supplied— so the route presents no SSRF surface. No installation, upgrade, or deletion occurs unless your site is connected to 42flows and the request is authenticated by an administrator-capability user. ## Installation 1. Install the plugin from the WordPress plugin directory, or upload the ZIP file via Plugins > Add New > Upload Plugin. 2. Activate the plugin. 3. No configuration needed — the plugin auto-detects your SEO plugin. ## FAQ ### Do I need this plugin? Only if you use 42flows to publish content to your WordPress site and want SEO meta fields (title, description, focus keyphrase) set automatically via the REST API. ### What if I don’t have an SEO plugin? The plugin does nothing if no supported SEO plugin (Yoast, Rank Math, or AIOSEO) is detected. It is safe to keep installed. ### Is it safe? Yes. It only registers existing meta fields for REST API access with proper sanitization and authentication. Only users with the `edit_posts` capability can write to these fields. All input is sanitized with `sanitize_text_field`. The companion-install REST route requires `install_plugins` + `activate_plugins` capabilities, and additionally `delete_plugins` for in-place upgrades. The companion plugin source URL is hard-coded — never accepted from request input — so there is no SSRF surface. The optional `min_version` parameter is validated against a strict` X.Y.Z` regex before being passed to PHP’s `version_compare`. ### Does it work with custom post types? Currently it registers meta fields for posts and pages. Support for custom post types can be added in a future version. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “42flows SEO Meta” is open source software. The following people have contributed to this plugin. Contributors * [ 42flows ](https://profiles.wordpress.org/42flows/) “42flows SEO Meta” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/42flows-seo-meta/contributors) for their contributions. [Translate “42flows SEO Meta” into your language.](https://translate.wordpress.org/projects/wp-plugins/42flows-seo-meta) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/42flows-seo-meta/), check out the [SVN repository](https://plugins.svn.wordpress.org/42flows-seo-meta/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/42flows-seo-meta/) by [RSS](https://plugins.trac.wordpress.org/log/42flows-seo-meta/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.2.1 * **Auto-enable WordPress plugin auto-updates for 42flows plugins.** On every successful`/ install-companion` call, both `42flows-seo-meta` and `42flows-content` are added to WordPress’s `auto_update_plugins` site option so future feature/security/fix releases reach the customer site without a manual click. Idempotent — safe to call repeatedly. Customers retain control: the WP admin Plugins page still shows a “Disable auto-updates” link. * Why: customers connect their site to 42flows specifically so 42flows manages the meta + render layer; asking them to also manually toggle plugin auto-updates per plugin is onboarding friction with no upside (every WP-side plugin update of these two plugins comes from us anyway). #### 1.2.0 * Add optional `min_version` parameter to `/wp-json/42flows/v1/install-companion`. When supplied (semver `X.Y.Z`), the route compares the installed companion version against `min_version` and performs an in-place upgrade (deactivate delete reinstall activate) if the installed version is older. Required because WordPress’s `Plugin_Upgrader:: install` refuses to overwrite an existing plugin folder. Without this parameter, behavior is unchanged: idempotent ensure-installed-and-active. * Upgrade path additionally requires the authenticated user to hold the `delete_plugins` capability, in line with the principle of least privilege. * `min_version` is validated as `^\d+\.\d+\.\d+$` before reaching `version_compare()` to reject arbitrary input. * Code refactored: install logic deduplicated into a shared helper used by both fresh-install and upgrade paths. #### 1.1.0 * Add REST route `/wp-json/42flows/v1/install-companion` for authenticated companion- plugin installation (requires `install_plugins` capability). Used only when the site is connected to 42flows. #### 1.0.0 * Initial release. * Support for Yoast SEO, Rank Math, and All in One SEO. * Meta fields registered for posts and pages. ## Meta * Version **1.2.1** * Last updated **4 weeks ago** * Active installations **Fewer than 10** * WordPress version ** 5.6 or higher ** * Tested up to **6.9.4** * PHP version ** 7.4 or higher ** * Languages * [English (US)](https://wordpress.org/plugins/42flows-seo-meta/) and [Russian](https://ru.wordpress.org/plugins/42flows-seo-meta/). * [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/42flows-seo-meta) * Tags * [aioseo](https://vec.wordpress.org/plugins/tags/aioseo/)[rank math](https://vec.wordpress.org/plugins/tags/rank-math/) [rest-api](https://vec.wordpress.org/plugins/tags/rest-api/)[seo](https://vec.wordpress.org/plugins/tags/seo/) [Yoast](https://vec.wordpress.org/plugins/tags/yoast/) * [Advanced View](https://vec.wordpress.org/plugins/42flows-seo-meta/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/42flows-seo-meta/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/42flows-seo-meta/reviews/) ## Contributors * [ 42flows ](https://profiles.wordpress.org/42flows/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/42flows-seo-meta/)