---
title: "Lemmy Post Scheduler for Communities"
description: "Schedule Lemmy posts with a 3 to 200 character title, a link and a cover image into one or several communities on your instance, or ask your AI agent."
canonical_url: "https://postqueen.ai/channels/lemmy"
markdown_url: "https://postqueen.ai/channels/lemmy.md"
last_updated: "2026-09-25"
llms_txt: "https://postqueen.ai/llms.txt"
---

# Schedule Lemmy posts with your AI agent.

Lemmy post scheduler

Schedule titled Lemmy posts with a link and a cover image into one or several communities on your instance. Your AI agent can prepare and schedule them for you.

[Start 7-day trial for $0](https://app.postqueen.ai/auth?utm_source=postqueen.ai&utm_medium=landing&utm_campaign=trial&utm_content=channel-hero) [Limits and settings](https://postqueen.ai/channels/lemmy#limits) $0 due today. Cancel in one click.

What you can publish

## Post types on Lemmy.

- Supported Titled post Own title and optional link per community
- Supported Several communities One submission per community, same body
- Supported Cover image The first file: PNG, JPG, JPEG, GIF or WEBP
- Supported Follow-up comments Top-level comments under each post
- Not supported Extra images, headings and links in the body The body is sent as plain text

Limits at a glance

## Lemmy limits.

|  |  |  |
| --- | --- | --- |
| Title | 3 to 200 characters, checked before scheduling; the editor keeps it to one line | [Official docs](https://github.com/LemmyNet/lemmy/blob/0.19.20/crates/utils/src/utils/validation.rs) |
| Body | 10,000 characters |  |
| Cover image | One PNG, JPG, JPEG, GIF or WEBP image; other files are left out |  |
| Post rate | About 6 posts per 10 minutes by default; instances can change it | [Official docs](https://github.com/LemmyNet/lemmy/blob/0.19.20/migrations/2022-10-06-183632_move_blocklist_to_db/up.sql) |

From each network’s documentation and PostQueen’s own checks.

## How to connect

1. Open Add Channel and pick Lemmy.
2. Enter your instance URL, your username and your password.

## Settings in PostQueen

**Communities**

Add one or more communities, each with its own title and optional link.

From your agent

## Post to Lemmy by asking.

Ask Grok Bot, Muse, Claude, ChatGPT or any AI agent, and the post lands on your calendar.

- [![Grok Bot](https://postqueen.ai/assets/agents/grok-bot.png)](https://postqueen.ai/grok-bot)
- [![Muse](https://postqueen.ai/assets/agents/muse.svg)](https://postqueen.ai/muse)
- [![OpenClaw](https://postqueen.ai/assets/agents/openclaw.png)](https://postqueen.ai/openclaw)
- [![Hermes Agent](https://postqueen.ai/assets/agents/hermes-agent.png)](https://postqueen.ai/hermes-agent)
- [![Claude](https://postqueen.ai/assets/agents/claude.svg)](https://postqueen.ai/claude)
- [![ChatGPT](https://postqueen.ai/assets/agents/chatgpt.png)](https://postqueen.ai/chatgpt)
- [![Grok](https://postqueen.ai/assets/agents/grok.svg)](https://postqueen.ai/grok)
- [![Claude Code](https://postqueen.ai/assets/agents/claude-code.svg)](https://postqueen.ai/claude-code)
- [![Codex](https://postqueen.ai/assets/agents/codex.svg)](https://postqueen.ai/codex)
- [![Cursor](https://postqueen.ai/assets/agents/cursor.png)](https://postqueen.ai/cursor)
- [![Gemini CLI](https://postqueen.ai/assets/agents/gemini-cli.png)](https://postqueen.ai/gemini-cli)

[Post from your agent](https://postqueen.ai/mcp)

## Good to know

- Accounts with two-factor authentication can’t connect. PostQueen signs in with your username and password.
- If you change your Lemmy password, reconnect the channel so publishing continues.
- Use a public instance. Private or local network addresses can’t connect.

## Lemmy questions, answered.

Anything else? Write to [support@postqueen.ai](mailto:support@postqueen.ai) and a person answers.

### Which Lemmy instances work?

Any public Lemmy instance. Enter its URL, your username and your password; lemmy.world is filled in by default. No developer app is needed, but accounts with two-factor authentication can’t connect.

### Can I post to several communities at once?

Yes. Add each community with its own title and optional link. PostQueen submits a separate post to each community, with the same body text.

### What should my Lemmy title look like?

Lemmy titles run from 3 to 200 characters on a single line, so keep line breaks out of the title.

### Can my AI agent post to Lemmy?

Yes. Through PostQueen’s MCP server or CLI, your AI agent can schedule a titled post with a link and a cover image to one or more communities.

## Similar networks

- [Reddit](https://postqueen.ai/channels/reddit)
- [Mastodon](https://postqueen.ai/channels/mastodon)
- [Discord](https://postqueen.ai/channels/discord)
- [Nostr](https://postqueen.ai/channels/nostr)

[All 30+ networks](https://postqueen.ai/channels)

### Put Lemmy on autopilot, your way.

Schedule from the calendar or ask your agent. Every post lands on the calendar first.

[Start 7-day trial for $0](https://app.postqueen.ai/auth?utm_source=postqueen.ai&utm_medium=landing&utm_campaign=trial&utm_content=band-channel) $0 due today. Cancel in one click.