From ChatGPT draft to Lemmy queue
The writing already happens in ChatGPT. With the public API or the CLI, the same conversation can create scheduled Lemmy posts instead of text to paste.
LemmyAutomate Lemmy with ChatGPT
Draft Lemmy posts in ChatGPT, then let postqueen schedule and publish them. One conversation in, a full Lemmy queue out.
Quick start
Point a custom GPT action at the public API, or let agent modes that run commands use the CLI for Lemmy.
Custom GPT or CLI
# Custom GPT action: call the public APIPOST https://api.postqueen.ai/public/v1/postsAuthorization: your_api_key # Or in agent modes that run commands:npm install -g postqueenpostqueen posts:create --json lemmy-week.jsonWhat ChatGPT can run on Lemmy
Windows that fit Lemmy
Tell ChatGPT when your communities are busiest and it schedules posts into that window on Lemmy, day after day, without reminders.
Community rules respected
ChatGPT targets the exact communities you choose and keeps every submission reviewable, so you can check each one against community rules first.
Drafts until you are ready
Ask ChatGPT for drafts only. They sit on the postqueen calendar unscheduled, so you can edit them and pick the time yourself, and nothing reaches your community members on Lemmy until you do.
Three steps to a full queue
Discover Lemmy
ChatGPT calls postqueen to list your connected communities and sees what Lemmy supports, so drafts start from real capabilities, not guesses.
Draft with ChatGPT
Give it the brief. The agent writes Lemmy-shaped posts and proposes publish times that match when your community members are around.
Check and publish
Look over the queue on the postqueen calendar and change anything you want. postqueen publishes each post at its time, and ChatGPT can pull the results after.
What Lemmy allows
ChatGPT reads these limits from postqueen before it composes, so a draft that would be rejected never reaches the queue.
- Post title
- 3 to 200 characters
- Post body
- Markdown, up to about 10,000 characters
- Attachments
- One link or image per post, with extra images embedded in the Markdown body
- Communities
- Every post belongs to exactly one community, so a cross-post is a separate submission
- Account
- A regular account on a Lemmy instance, with no developer app to register
- Rate limits
- Set per instance, and defaults allow only a few new posts per 10 minutes
LemmyEverything postqueen does on Lemmy
Scheduling, AI drafts, analytics and team roles, in one guide.
F.A.Q.
Frequently asked questions
How does ChatGPT connect Lemmy to postqueen?
Through the public API from a custom GPT action, or through the CLI in agent modes that execute commands. Both use the same API key and cover Lemmy posts end to end.
Can ChatGPT schedule Lemmy posts at exact times?
Yes. Give it exact slots or a rule like mornings at nine and it sets publish times on the posts it creates, keeping your communities active on a steady rhythm.
Will ChatGPT publish to Lemmy on its own?
Only if you ask it to. Tell it to save drafts and nothing is scheduled: the posts wait on the calendar until you set a time. Tell it to schedule, and they go out at the times you can see, which is the setup most people move to once they trust the output.
Can one brief cover Lemmy and other channels too?
Yes. postqueen connects 30 channels, so ChatGPT can turn the same brief into Lemmy posts plus adapted versions for every other channel you run.
Does ChatGPT access cost extra on postqueen?
No. The agent uses your regular API key and plan limits: unlimited posts on every plan, and channel counts from 5 on Creator up to uncapped on Ultimate.
Can AI write my Lemmy posts?
Yes. The built-in assistant drafts titles and Markdown bodies from a short prompt and rewrites anything you highlight, and nothing publishes until you schedule it. Keep it grounded and specific: Lemmy communities are small and read closely, so generated filler gets spotted fast. Agents like Claude Code or OpenClaw can prepare a whole queue through the MCP server.
What analytics do I get for Lemmy?
postqueen keeps a full history of what it published, in which community and when, so you can compare communities and time slots. Scores and comment threads live on Lemmy itself, since the network has no central analytics dashboard and every instance holds its own copy of the data. Reading your queue history next to the discussion is what tells you which communities actually want your posts.
Ready to get started?
Queue this week's posts in minutes, or hand the whole thing to your favorite AI. postqueen keeps publishing either way.
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