Automate Lemmy with Perplexity Computer

Post to Lemmy communities, share links across the fediverse, and cross-post to multiple communities — all from the command line or through your AI agent.

Setup Guide

Please make sure there is always a human in the loop.

Post to Lemmy in Seconds

Terminal

# Install the skill
npx skills add gitroomhq/postiz-agent

# Set your API key
export POSTIZ_API_KEY=your_api_key

# Find your Lemmy integration
postiz integrations:list

# Post to a Lemmy community
postiz posts:create \
  -c "Check out this interesting article about open source!" \
  -s "2025-01-15T10:00:00Z" \
  --settings '{"subreddit":[{"value":{"subreddit":"technology","id":"comm-id","title":"Check this out"}}]}' \
  -i "your-lemmy-integration-id"

Lemmy-Specific Features

🏘️

Community Posting

Post directly to any Lemmy community. Target specific communities by name and ID for precise content distribution.

🔗

Link Posts

Share URLs alongside your post content. Perfect for sharing articles, resources, and external content with your communities.

🌐

Federated Network

Reach users across the entire fediverse. Your posts on one Lemmy instance are visible to federated instances automatically.

🔀

Cross-Community Posting

Post to multiple Lemmy communities in a single request. Share content across related communities to maximize reach.

📝

Custom Titles

Set unique titles for each community post. Tailor your headlines to match the culture and expectations of each community.

📅

Scheduled Posting

Schedule posts with precise timestamps. Plan your community engagement ahead of time and post at peak activity hours.

How It Works

Find Your Lemmy Integration

List your connected accounts and grab your Lemmy integration ID. You can also fetch available settings to see what options are supported.

Discovery

# List all integrations
postiz integrations:list

# Filter for Lemmy
postiz integrations:list | jq \
  '.[] | select(.identifier=="lemmy")'

# Get Lemmy settings schema
postiz integrations:settings <lemmy-id>

Choose Your Communities

Identify the Lemmy communities you want to post to. Each community requires a name, ID, and a post title. You can optionally include a URL for link posts.

Configuration

# Example community configuration
# subreddit = community name
# id = community ID from your instance
# title = post title (required, min 2 chars)
# url = optional link URL

echo '{
  "subreddit": [
    {
      "value": {
        "subreddit": "technology",
        "id": "comm-123",
        "title": "Great article on AI",
        "url": "https://example.com/article"
      }
    }
  ]
}'

Create Your Post

Schedule a Lemmy post with your content, target communities, and optional link URL. Posts can target one or multiple communities at once.

Post Creation

postiz posts:create \
  -c "Thoughts on the future of open source" \
  -s "2025-03-01T09:00:00Z" \
  --settings '{
    "subreddit": [
      {
        "value": {
          "subreddit": "technology",
          "id": "comm-123",
          "title": "The Future of Open Source",
          "url": "https://example.com/article"
        }
      }
    ]
  }' \
  -i "lemmy-id"

Lemmy Settings Reference

Every Lemmy post accepts these platform-specific settings via the --settings flag.

Field	Type	Required	Description
`__type`	string	Yes	Must be "lemmy"
`subreddit`	array	Yes	Array of community objects: [{value: {subreddit, id, title, url?}}]
`subreddit[].value.subreddit`	string	Yes	Community name (min 2 characters)
`subreddit[].value.id`	string	Yes	Community ID on the Lemmy instance
`subreddit[].value.title`	string	Yes	Post title (min 2 characters)
`subreddit[].value.url`	string	No	Optional URL for link posts

Common Configurations

Copy-paste these settings for common Lemmy posting scenarios.

Simple Text Post to One Community

settings.json

{
  "subreddit": [
    {
      "value": {
        "subreddit": "technology",
        "id": "comm-123",
        "title": "Interesting discussion on AI agents"
      }
    }
  ]
}

Link Post with URL

settings.json

{
  "subreddit": [
    {
      "value": {
        "subreddit": "opensource",
        "id": "comm-456",
        "title": "New open-source social media tool",
        "url": "https://github.com/gitroomhq/postiz-app"
      }
    }
  ]
}

Cross-Post to Multiple Communities

settings.json

{
  "subreddit": [
    {
      "value": {
        "subreddit": "technology",
        "id": "comm-123",
        "title": "AI-powered social media automation"
      }
    },
    {
      "value": {
        "subreddit": "selfhosted",
        "id": "comm-789",
        "title": "Self-host your social media scheduler"
      }
    },
    {
      "value": {
        "subreddit": "opensource",
        "id": "comm-456",
        "title": "Open-source alternative to Buffer"
      }
    }
  ]
}

What is Perplexity Computer?

Perplexity Computer is a general-purpose digital worker that decomposes high-level goals into subtasks, spawns specialized sub-agents across 19 AI models, and delivers finished results — from code to marketing campaigns.

🧩

Task Decomposition

Perplexity Computer breaks complex social media campaigns into subtasks and handles each one with specialized sub-agents for maximum quality.

🔄

Multi-Model

Spawns sub-agents across 19 different AI models, picking the best model for each subtask — content writing, image generation, scheduling, and more.

🎯

End-to-End Delivery

From content ideation to final publishing — Perplexity Computer handles the complete social media workflow and delivers finished results.

How Postiz Works with Perplexity Computer

Perplexity Computer discovers Postiz commands through its tool integration system. It can decompose a social media campaign into subtasks and use Postiz to execute each one.

✓Install Postiz Agent and set your POSTIZ_API_KEY
✓Perplexity Computer discovers Postiz through tool integration
✓Tasks are decomposed across specialized sub-agents
✓Each sub-agent picks the best model for its subtask
✓Results are delivered end-to-end with verification

Install Postiz

# Install the Postiz skill
npx skills add gitroomhq/postiz-agent

# Set your API key
export POSTIZ_API_KEY=your_api_key

# Perplexity Computer discovers Postiz
# through its tool integration system
# and decomposes tasks across sub-agents

Lemmy Posting with Perplexity Computer

Give Perplexity Computer a high-level goal and it decomposes it into subtasks, discovers your integrations via Postiz, and delivers a complete posting workflow.

🌐

From Any Chat App

Give Perplexity Computer a high-level go...

Send a message to Perplexity Computer from your favorite chat app. It runs as a persistent daemon on your machine, so it picks up your message, discovers your Lemmy account via Postiz, composes the post, and publishes it to your chosen communities.

Perplexity Computer

You: Create a week-long Lemmy
  campaign for our product launch

Perplexity Computer:
  Breaking this into subtasks:
  1. Research trending topics
  2. Draft 5 posts with varied angles
  3. Find your Lemmy integration
  4. Schedule posts across the week

  All 5 posts scheduled!
  Mon-Fri at 10:00 AM.

🌐

Scheduled & Proactive

Perplexity Computer can execute rec...

Perplexity Computer supports cron-based heartbeat tasks. Set up a recurring job that checks for new content and cross-posts it to your Lemmy communities automatically — no manual trigger needed.

Perplexity Computer Task

Tell Perplexity Computer:

"Every Monday morning, create a
week's worth of Lemmy content
based on trending topics in our
industry. Schedule one post per day
at 10 AM. Use engaging hooks and
relevant hashtags."

Perplexity Computer will:
  1. Research current trends
  2. Generate 5 unique posts
  3. Schedule via Postiz
  4. Report results back

Why Perplexity Computer + Postiz for Lemmy

Perplexity Computer makes Postiz a natural fit for your Lemmy workflow. The agent discovers all available commands and autonomously chains them together.

✓Decomposes complex Lemmy campaigns into optimized subtasks
✓19 AI models — picks the best one for each part of the workflow
✓End-to-end delivery from ideation to scheduled publishing
✓Research-powered content based on real-time trending topics
✓Cross-post to Lemmy + other platforms in a single request
✓Available to Perplexity Max subscribers

SKILL.md (auto-discovered)

---
name: postiz
description: Social media automation
  CLI for scheduling posts across
  30+ platforms including Lemmy
metadata:
  perplexity-computer:
    requirements:
      env:
        - POSTIZ_API_KEY
      binaries:
        - postiz
---

# Available Commands
- postiz integrations:list
- postiz integrations:settings <id>
- postiz posts:create
- postiz upload <file>
- postiz analytics:platform <id>

# Lemmy Settings
subreddit (array of communities),
each with: subreddit, id, title, url

Also Works with Claude Code

Postiz Agent works as a CLI tool with any AI agent that can execute shell commands — including Anthropic's Claude Code.

Claude Code

by Anthropic

Claude reads the SKILL.md file to learn all available Postiz commands, then autonomously discovers your Lemmy integration, composes your post with the right community settings, and schedules it.

Claude Code

> Post an article about our new release
  to the technology and opensource
  communities on Lemmy

Claude will automatically run:
  postiz integrations:list
  postiz posts:create \
    -c "We just launched v2.0!" \
    -s "2025-03-02T09:00:00Z" \
    --settings '{"subreddit":[
      {"value":{"subreddit":"technology",
        "id":"comm-123",
        "title":"New Release v2.0",
        "url":"https://blog.example.com"}},
      {"value":{"subreddit":"opensource",
        "id":"comm-456",
        "title":"Open Source Release v2.0",
        "url":"https://blog.example.com"}}
    ]}' \
    -i "lemmy-id"

Lemmy + Other Platforms

Schedule the same content to Lemmy and other platforms in a single command. Each platform gets its own settings.

Terminal

# Post to Lemmy and Reddit simultaneously
postiz posts:create \
  -c "Check out our new open-source project! #opensource" \
  -s "2025-03-01T09:00:00Z" \
  --settings '{
    "subreddit": [
      {
        "value": {
          "subreddit": "technology",
          "id": "comm-123",
          "title": "New open-source social media tool"
        }
      }
    ]
  }' \
  -i "lemmy-id,reddit-id"

# Batch schedule a week of Lemmy content
for day in 1 2 3 4 5; do
  postiz posts:create \
    -c "Day $day community highlight! #fediverse" \
    -s "2025-03-0${day}T10:00:00Z" \
    --settings '{"subreddit":[{"value":{"subreddit":"technology","id":"comm-123","title":"Day '"$day"' Highlight"}}]}' \
    -i "lemmy-id"
done

Start posting to Lemmy

Install Postiz Agent and automate your Lemmy community engagement with AI-powered scheduling and publishing.

Get Started

Ready to get started?

Grow your social media presence with Postiz.
Schedule, analyze, and engage with your audience.

Start for $0

Open-source social media scheduling tool

Proudly open-source ❤️