Mark Biek

This plugin will automatically post content to Bluesky when a post is published. Users can select which categories to post to Bluesky.
If the post is less than 300 characters, the entire post will be posted. If the post is longer than 300 characters, the post excerpt will be posted along with a link to the full post.
The post title is always ignored.

Antelope Bluesky Poster

This plugin will automatically post content to Bluesky.

JRMora

Recordar for Bluesky & Mastodon is a plugin designed to automate the publication of archive content (ephemeris/on this day) to Bluesky and Mastodon. 
It integrates with the WordPress CRON system to:
<ul>
<li>Dual Publishing: Connect both Bluesky and Mastodon simultaneously.</li>
<li>Smart Scheduling: Automatically publish old posts (“On a day like today, N years/months ago”) at user-defined times.</li>
<li>Full Multilanguage Support: Detects and allows filtering posts by language (e.g., ‘es’, ‘en’, ‘de’) if using plugins like Polylang or WPML.</li>
<li>Immediate Publication of New Posts: Optionally, send a post to your networks immediately upon publication in WordPress.</li>
<li>Editorial Control: Exclude specific posts (by ID) to prevent automatic publication.</li>
<li>Link Handling (Embeds): Generates the link embed with image, title, and excerpt. Supports native image uploading for both networks.</li>
<li>Diagnostic Tools: Includes connection tests, Archive query tests, and CRON status/reset tools.</li>
<li>Granular Control: Pause the entire system globally, or enable/disable each social network individually.</li>
<li>Lists Laboratory: Create and save draft schedules offline before applying them.</li>
</ul>
Requirements: 
* A Bluesky account (Handle + App Password). 
* A Mastodon account (Instance URL + Access Token).

Recordar for Bluesky & Mastodon

Automate archive (Ephemeris) & new posts to Bluesky & Mastodon. Includes scheduling, lists, editorial control and multi-language support.

Antelope Bluesky Poster vs Recordar for Bluesky & Mastodon