ChatGPT + Mastodon
Post to Mastodon from ChatGPT
Ask ChatGPT to write and schedule your Mastodon posts. BrokenPost connects the two, follows Mastodon's rules and posts at the time you pick.
How to connect ChatGPT to Mastodon
- 1
Connect Mastodon in BrokenPost. Sign in with your Mastodon account.
- 2
In BrokenPost, open Plugins and click Add to ChatGPT.
- 3
ChatGPT opens the BrokenPost app. Click connect.
- 4
Sign in to BrokenPost when asked and allow access.
- 5
Start a new chat and ask ChatGPT to schedule a post.
Prefer another way? See every way to connect ChatGPT.
What to ask ChatGPT
Type these in a ChatGPT chat. Change the details to fit your posts.
- “Post our release notes on Mastodon tomorrow at 10am as a short thread.”
- “Share this screenshot on Mastodon this afternoon.”
- “Schedule this post on Mastodon, Bluesky and X for Monday morning.”
- “Here are my notes from today. Write a Mastodon post from them and save it as a draft.”
- “What Mastodon posts do I have scheduled for next week?”
What happens next
- 1
You ask in a ChatGPT chat, in plain words.
- 2
ChatGPT lists the channels you connected in BrokenPost and picks your Mastodon account.
- 3
It reads Mastodon's rules and settings from BrokenPost, so the post fits Mastodon's limits before it is written.
- 4
If you shared a picture, a video or a link to one, it uploads it to your media library.
- 5
It creates the post as scheduled, as a draft, or to go out now, and gives you a preview link.
- 6
At the set time BrokenPost publishes it to Mastodon and it shows on your calendar.
Mastodon limits ChatGPT follows
ChatGPT reads these rules from BrokenPost before it writes, so the post fits the first time.
| Characters | 500 characters |
|---|---|
| Media | Pictures or video |
| Threads | Yes, as replies |
If Mastodon rejects a post
ChatGPT sees the same message and can fix the post for you.
| What you see | How to fix it |
|---|---|
| The media was still processing when the post was published, please try again | Big videos need time on Mastodon. Retry the post a few minutes later. |
| Your login is currently disabled | Your Mastodon server disabled the account. Sign in on Mastodon to sort it out, then reconnect. |
Good to know
- Each part can have up to 500 characters.
- Big videos take Mastodon a while to process, so upload them well before the post time.
- ChatGPT only posts when you ask. Ask for a draft to check the post in BrokenPost first.
Questions people ask
Can ChatGPT post to Mastodon directly?
Yes, through BrokenPost. Connect Mastodon in BrokenPost, connect BrokenPost to ChatGPT, and ChatGPT can schedule, draft or publish Mastodon posts.
Does ChatGPT know the Mastodon limits?
Yes. ChatGPT reads Mastodon's rules from BrokenPost before it writes: 500 characters and pictures or video. BrokenPost checks again before it posts.
Can ChatGPT schedule Mastodon posts for later?
Yes. Give a day and time, like "Friday at 6pm", and the post goes out then. Ask for a draft if you want to check it first.
Is it free?
ChatGPT with BrokenPost works on every plan. The Free plan includes 1 account on every app and 20 posts a month. Paid plans start at $19 a month with unlimited posts.
Can ChatGPT post a Mastodon thread or comments?
Yes. Ask for a thread or a first comment and BrokenPost posts each part as a reply, right after the first one.
More apps with ChatGPT
Post to Mastodon with other AI
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