Automate Listmonk with Claude Cowork

Send email campaigns, manage mailing lists, configure templates and preview text, and automate newsletter delivery — all from the command line or through your AI agent.

Setup Guide

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

Send a Listmonk Campaign 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 Listmonk integration
postiz integrations:list

# Send an email campaign
postiz posts:create \
  -c "Email body content..." \
  --settings '{"subject":"Weekly Newsletter","preview":"This week in tech...","list":"list-1"}' \
  -i "listmonk-id"

Listmonk-Specific Features

📧

Email Campaigns

Create and send email campaigns to your subscriber lists with rich HTML content, subject lines, and preview text.

📋

Mailing Lists

Target specific subscriber lists by ID. Send campaigns to the right audience segment every time.

🎨

Template Support

Use pre-built email templates by specifying a template ID. Maintain consistent branding across all campaigns.

👁

Preview Text

Set preview text that appears in email clients before the recipient opens the message. Boost open rates with compelling previews.

📰

Newsletter Automation

Automate recurring newsletters with scheduled sends. Let AI agents craft and deliver content on a regular cadence.

📅

Scheduled Delivery

Schedule email campaigns for optimal delivery times. Use ISO timestamps to send at exactly the right moment.

How It Works

Find Your Listmonk Integration

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

Discovery

# List all integrations
postiz integrations:list

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

# Get Listmonk settings schema
postiz integrations:settings <listmonk-id>

Compose Your Email

Write your email body content. The content flag accepts plain text or HTML. Pair it with a subject line and preview text in the settings.

Compose

# Simple text email
postiz posts:create \
  -c "Hello subscribers! Here is your weekly update..." \
  --settings '{"subject":"Weekly Update","preview":"Big news inside","list":"list-1"}' \
  -i "listmonk-id"

# With HTML content
postiz posts:create \
  -c "<h1>Newsletter</h1><p>Content here...</p>" \
  --settings '{"subject":"March Newsletter","preview":"What happened this month","list":"list-2","template":"tmpl-1"}' \
  -i "listmonk-id"

Schedule and Send

Schedule your email campaign for a specific time or send immediately. Target a specific list and optionally apply a template for consistent formatting.

Schedule

postiz posts:create \
  -c "Don't miss our spring sale!" \
  -s "2025-03-01T09:00:00Z" \
  --settings '{
    "subject": "Spring Sale - 30% Off",
    "preview": "Limited time offer inside",
    "list": "list-1",
    "template": "sale-template"
  }' \
  -i "listmonk-id"

Listmonk Settings Reference

Every Listmonk campaign accepts these platform-specific settings via the --settings flag.

Field	Type	Required	Description
`__type`	string	Yes	Must be "listmonk" to identify the platform
`subject`	string	Yes	Email subject line (min 1 character)
`preview`	string	Yes	Preview text shown in email clients before opening
`list`	string	Yes	List ID to send the campaign to
`template`	string	No	Template ID to use for the email layout

Common Configurations

Copy-paste these settings for common Listmonk campaign scenarios.

Weekly Newsletter

settings.json

{
  "subject": "Weekly Newsletter - March Edition",
  "preview": "This week: new features, tips, and community highlights",
  "list": "list-1",
  "template": "newsletter-tmpl"
}

Product Announcement

settings.json

{
  "subject": "Introducing Our New Feature",
  "preview": "We've been working on something big...",
  "list": "list-2"
}

Promotional Campaign with Template

settings.json

{
  "subject": "Flash Sale - 48 Hours Only",
  "preview": "Up to 50% off everything in store",
  "list": "list-3",
  "template": "promo-template"
}

Plain Text Update

settings.json

{
  "subject": "A quick note from the team",
  "preview": "Important updates about your account",
  "list": "list-1"
}

What is Claude Cowork?

Claude Cowork is Anthropic's agentic AI tool for knowledge workers. It runs on your desktop, connects to local files and apps like Google Drive, Gmail, and DocuSign, and completes multi-step tasks autonomously.

💻

Desktop Native

Claude Cowork runs directly on your desktop, connecting to your local files and apps. No browser or cloud setup needed to manage your social media workflow.

🔗

App Integrations

Connects to Google Drive, Gmail, DocuSign, and more. Pull content from your existing tools and publish it to social media seamlessly.

🤖

Autonomous Tasks

Schedule recurring tasks with cron jobs. Claude Cowork can send your Listmonk campaigns on a schedule without you having to ask each time.

How Postiz Works with Claude Cowork

When you install Postiz Agent globally, Claude Cowork automatically discovers it by reading the bundled SKILL.md file. This file tells Claude Cowork what commands are available, what environment variables are needed, and how to compose Listmonk campaigns with the right settings.

✓Install Postiz Agent and set your POSTIZ_API_KEY
✓Claude Cowork discovers Postiz through MCP integration
✓All Postiz commands become available as tools
✓Claude Cowork autonomously chains commands for complex workflows
✓Works seamlessly with your existing desktop apps and files

Install Postiz

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

# Set your API key
export POSTIZ_API_KEY=your_api_key

# Claude Cowork discovers Postiz
# through MCP tool integration
# and can call all commands directly

Listmonk Campaigns with Claude Cowork

Message Claude Cowork from any platform — it reads the Postiz skill, discovers your Listmonk integration, and handles the entire email campaign workflow autonomously.

🦀

From Any Chat App

Tell Claude Cowork what to post from you...

Send a message to Claude Cowork from your favorite chat app. It runs as a persistent daemon on your machine, so it picks up your message, discovers your Listmonk integration via Postiz, composes the email, and sends the campaign — all while you go about your day.

Claude Cowork

You: Post to Listmonk about our new
  feature launch, schedule for tomorrow
  at 9am

Claude Cowork: I'll handle that for you.
  1. Found your Listmonk integration
  2. Composing your post
  3. Scheduling for tomorrow at 9:00 AM

  Done! Your post is scheduled.
  Post ID: abc-123

🦀

Scheduled & Proactive

Cron jobs for recurring newsletters

Claude Cowork supports cron-based heartbeat tasks. Set up a recurring job that generates newsletter content and sends it to your Listmonk lists automatically — no manual trigger needed.

Claude Cowork Task

Tell Claude Cowork:

"Every weekday morning, check my
~/content/drafts folder for new posts
and schedule them to Listmonk
for noon today. Move published drafts
to ~/content/published."

Claude Cowork will autonomously:
  1. Monitor your drafts folder
  2. Read and format each post
  3. Schedule via Postiz
  4. Move files when done

Why Claude Cowork + Postiz for Listmonk

Claude Cowork makes Postiz a natural fit for your Listmonk workflow. The agent discovers all available commands and autonomously chains them together.

✓Desktop-native — no terminal or CLI knowledge needed
✓Connects to your local files to pull content for Listmonk posts
✓Multi-step autonomy — handles discovery, composition, and scheduling
✓Works with Google Drive, Gmail, and other desktop apps
✓Cross-post to Listmonk + other platforms in a single request
✓Powered by Claude — Anthropic's most capable AI model

SKILL.md (auto-discovered)

---
name: postiz
description: Social media automation
  CLI for scheduling posts across
  30+ platforms including Listmonk
metadata:
  claude-cowork:
    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>

# Listmonk Settings
subject, preview, list, template

Also Works with OpenClaw

Postiz Agent works as a CLI tool with any AI agent that can execute shell commands — including OpenClaw, the open-source personal AI agent.

🦀

OpenClaw

Open-source AI agent

Claude reads the SKILL.md file to learn all available Postiz commands, then autonomously discovers your Listmonk integration, composes your email campaign with subject, preview text, and list targeting, and sends it on schedule.

OpenClaw

> Send a newsletter to list-1 about our
  new feature launch, schedule for Monday

Claude will automatically run:
  postiz integrations:list
  postiz posts:create \
    -c "<h1>New Feature Launch</h1>..." \
    -s "2025-03-03T09:00:00Z" \
    --settings '{"subject":
      "Exciting New Feature",
      "preview":"Check out what we built",
      "list":"list-1",
      "template":"newsletter-tmpl"}' \
    -i "listmonk-id"

Listmonk + Other Platforms

Send an email campaign and post to social media simultaneously. Each platform gets its own settings.

Terminal

# Send email and post to social media simultaneously
postiz posts:create \
  -c "We just launched our new feature! Check it out." \
  -s "2025-03-01T09:00:00Z" \
  --settings '{"subject":"New Feature Launch","preview":"Something big is here","list":"list-1"}' \
  -i "listmonk-id,twitter-id,linkedin-id"

# Batch schedule a month of newsletters
for week in 1 2 3 4; do
  postiz posts:create \
    -c "Week $week newsletter content..." \
    -s "2025-03-0${week}T08:00:00Z" \
    --settings '{"subject":"Weekly Digest - Week '$week'","preview":"Your weekly roundup","list":"list-1","template":"newsletter-tmpl"}' \
    -i "listmonk-id"
done

Start sending with Listmonk

Install Postiz Agent and automate your Listmonk email campaigns with AI-powered scheduling and delivery.

Get Started

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