Rich text, link cards, replies, labels, and media use Bluesky's AT Protocol format.
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Bluesky
Handle and app password
Keep a Bluesky post concise while preserving links and rich text.
This page is for people deciding whether OpenPost fits their Bluesky publishing workflow.
Connect with a handle and app password, then schedule posts, links, media, and reply threads.
Implemented: Publishing is implemented
Managed certification: No managed provider-format certification claim is current.
Formats and limits
Different formats, different rules.
OpenPost checks the text and media rules for the format you choose.
Post, thread, or link
- Text
- 300 characters
- Media
- Text or a rich link card
Image post
- Text
- 300 characters
- Media
- 1-4 JPEG, PNG, or WebP images
Video
- Text
- 300 characters
- Media
- 1 MP4 video, up to 100 MB
Provider limits and scope
- 300 characters
- Up to 4 images or 1 MP4 video
- AT Protocol replies
- Video cannot be mixed with images
Connect and test
Set up Bluesky in three checks.
- 1
Create an app password in Bluesky account settings.
- 2
Connect with your handle and that app password, not your main password.
- 3
Publish a test if you plan to use video or rich links.
Known limits
What can still block a post.
- Video must be MP4 and cannot be combined with images.
- App passwords can be revoked independently from the main account password.
- Bluesky may need time to process a video after upload.
Account requirement: A Bluesky handle and a dedicated app password.
Verification: Text and image posts work in OpenPost. Test video with the account before a scheduled campaign.
Use the current callback address, permissions, and media setup.
Social network developer pages change. The OpenPost guide lists the settings and checks you need now.
Read the Bluesky guide