What you can post
Text
Up to 500 characters, even on a server that allows more.
Media
Images and MP4 video, with alt text. Up to 4 files in a post, and a video goes alone.
Post types
Post and thread. Every post is public.
Analytics
No analytics for Mastodon.
Connect Mastodon
PostQueen connects accounts on one Mastodon server: accounts on other servers cannot be connected.1
Open Add Channel
Open Channels and choose Add Channel, then Mastodon.
2
Sign in to Mastodon
Sign in to your Mastodon account on the login page that opens, and approve access.
3
Check that it connected
The channel appears in the Channels list with its avatar and name.
Post settings
Mastodon posts have no settings of their own in the composer: the text, the media and each file’s alt text are all a post carries. The API fields are on Mastodon posting settings.Good to know
- Continue thread adds parts to the post. Each part is posted as a reply to the part before, can carry its own media and has its own delay.
- PostQueen waits until your server has processed a video before it creates the post. Media in later thread parts is posted without that wait, so a part with a large video can fail.
- Before a post is scheduled, PostQueen checks that each part has at most 4 files, with “Mastodon allows up to 4 files per post.”, and that a video is its only file, with “Mastodon allows one video per post, without other media.”
- The first post carries a key that stops Mastodon from publishing it twice when the request is retried.
Next steps
Create a post
Write once for several channels, then schedule it, save a draft or post now.
All channels
What each network posts, its text limit and how to connect it.
Post from an AI agent
Ask Grok Bot, Muse, ChatGPT, Claude or another agent to schedule the post for you.
A post did not go out
Why a post fails and what to do about it.