Automate Listmonk with Hermes Agent

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 GitHub

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 Hermes Agent?

Hermes Agent is an open-source AI agent framework by Nous Research — “the agent that grows with you.” It's a flexible platform for building and running AI agents that can execute real-world tasks.

🌱

Grows With You

Hermes Agent learns and adapts to your workflows over time. The more you use it, the better it understands your social media strategy and content style.

🔧

Open-Source Framework

Built by Nous Research, Hermes Agent is fully open-source. Customize and extend it to fit your exact social media automation needs.

⚡

Tool Execution

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

How Postiz Works with Hermes Agent

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

✓Install Postiz Agent globally with npx skills add
✓Hermes Agent discovers Postiz through tool execution framework
✓POSTIZ_API_KEY must be set in environment
✓All Postiz commands become available as agent tools
✓Works with any compatible LLM backend

Install Postiz

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

# Set your API key
export POSTIZ_API_KEY=your_api_key

# Hermes Agent discovers Postiz
# through its tool execution framework
hermes tools list

Listmonk Campaigns with Hermes Agent

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

🧠

From Any Chat App

Hermes Agent reads Postiz commands throu...

Send a message to Hermes Agent 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.

Hermes Agent

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

Hermes: I'll handle that! Let me:
  1. Find your Listmonk integration
  2. Compose your post content
  3. Schedule for tomorrow 9:00 AM

  Done! Post scheduled successfully.
  Post ID: abc-123

🧠

Scheduled & Proactive

Cron jobs for recurring newsletters

Hermes Agent 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.

hermes-config.yaml

scheduled_tasks:
  - name: daily_social_posts
    schedule: "0 9 * * 1-5"
    prompt: |
      Check ~/content/posts for new
      .txt files. For each one, read
      the content and schedule a post
      to Listmonk for today at noon.
      Move posted files to
      ~/content/published.

Why Hermes Agent + Postiz for Listmonk

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

✓Open-source and fully customizable for your Listmonk workflow
✓Grows and adapts to your content strategy over time
✓Tool execution framework discovers Postiz commands automatically
✓Scheduled tasks for hands-free daily posting
✓Cross-post to Listmonk + other platforms in a single conversation
✓Works with any LLM backend — not locked to a single provider

SKILL.md (auto-discovered)

---
name: postiz
description: Social media automation
  CLI for scheduling posts across
  30+ platforms including Listmonk
metadata:
  hermes-agent:
    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 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 Listmonk integration, composes your email campaign with subject, preview text, and list targeting, and sends it on schedule.

Claude Code

> 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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