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Simple email marketing with a single prompt. MailerLite offers newsletters, subscriber management, landing pages, and automation workflows. Connect it to Rocket and describe the email flow you want in chat. Rocket generates the complete logic: signup forms, subscriber list management, automation triggers, and email sending.You need a Rocket account and a MailerLite account.
MailerLite is ideal when you want a clean, straightforward email marketing tool without the complexity of enterprise platforms. Pair it with Supabase (for user data) and Stripe (for payment-triggered emails) for the best results.

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What you can use it for

Collect subscriber emails through forms and deliver regular newsletters with rich content.Try this prompt:
Add a newsletter signup form to my homepage. Store subscribers in MailerLite
and send a weekly newsletter with the latest blog posts.
Rocket creates: signup form UI, MailerLite subscriber API integration, newsletter sending flow.
Build embedded forms, popups, and landing pages that grow your email list.Try this prompt:
Add a popup email signup form that appears after a user scrolls 50% of the page.
Store the email in MailerLite and send a confirmation message.
Rocket creates: scroll-triggered popup, MailerLite subscriber creation, confirmation email trigger.
Collect email addresses for upcoming launches, waitlists, and early access campaigns.Try this prompt:
Add a MailerLite signup form for early access notifications on my product launch page.
Collect name and email, tag subscribers as "early-access" in MailerLite.
Rocket creates: signup form UI, MailerLite subscriber creation with tags, confirmation message.
Set up drip campaigns and automation workflows triggered by subscriber actions.Try this prompt:
When a new subscriber joins through the signup form, start a 5-email welcome sequence
through MailerLite, sent one email per day for five days.
Rocket creates: subscription trigger, MailerLite automation setup, sequence scheduling logic.
Organize subscribers into groups and send targeted emails based on interests or behavior.Try this prompt:
Let users pick topics they're interested in during signup. Add them to the matching
MailerLite groups and only send newsletters about their selected topics.
Rocket creates: topic picker UI, MailerLite group assignment, targeted sending logic.

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Quick start

1

Get your MailerLite API token

Log in to MailerLite, go to Integrations > API, click Generate New Token, name it, and copy the token.
2

Connect in chat

Open any Rocket project and type:
Connect MailerLite and add a newsletter signup form to my landing page.
Paste your API token when prompted. Rocket builds the signup flow instantly.
3

Test the signup

Submit the form in your app preview and check that the subscriber appears in your MailerLite dashboard under Subscribers.

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Detailed setup

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Get your MailerLite API token

Open MailerLite’s documentation to learn how to find your API token.
To generate a new token:
  1. Log in to MailerLite and go to Integrations > API.
  2. Click Generate New Token.
  3. Add a name, accept the terms and conditions, then confirm.
  4. Copy the token. You will paste it into Rocket in the next step.
Never paste your MailerLite API token directly into Rocket chat. Always use the secure integration flow or the API token input in settings. If you believe your token has been exposed, revoke it from MailerLite and generate a new one.

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Connect MailerLite to Rocket

1

Connect MailerLite to Rocket

There are two ways to connect MailerLite to Rocket:Method 1: Use Rocket Chat (fastest)
  • In any project, open the chat panel and type something like: Connect my MailerLite account to:
  • Add a newsletter signup form to my landing page.
  • Send a welcome email when someone subscribes.
  • You will see a popup appear where you can paste and save your API token instantly.
Method 2: From your project settings
  • Open any project and go to Integrations.
  • Click the MailerLite card.
When you connect MailerLite from Project Settings, Rocket will not automatically create email flows. After saving your token, describe the email flow you want in chat for Rocket to implement it.
2

Save your API token

  • Paste your API token into the field.
  • Click Save to complete setup.
3

Update or disconnect

  • Click the MailerLite integration again.
  • Replace the existing token or click Disconnect to remove it.

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Prompt cookbook

Copy-paste these prompts after connecting MailerLite to build common email marketing flows:
Use casePrompt
Newsletter signupAdd a newsletter signup form to my landing page that stores subscribers in MailerLite.
Welcome sequenceWhen a new subscriber joins, start a 5-email welcome sequence through MailerLite over 5 days.
Blog digestSend a weekly email digest through MailerLite with the latest blog posts every Monday morning.
Popup formShow a signup popup after 30 seconds on the page. Add the email to MailerLite on submit.
Waitlist signupAdd a MailerLite signup form for my product waitlist. Tag subscribers as "waitlist" and show a confirmation.
Segmented sendLet users pick topics during signup and add them to matching MailerLite groups for targeted emails.
Re-engagementSend a re-engagement email through MailerLite to subscribers who have not opened an email in 90 days.
Subscriber countShow a live subscriber count on my homepage by pulling the total from MailerLite's API.
Unsubscribe pageBuild a custom unsubscribe page that removes the user from the MailerLite list and shows a confirmation.
A/B subject lineSend two versions of the newsletter with different subject lines to a small group, then send the winner to everyone.

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Tips and limitations

  • MailerLite is built for email marketing. It excels at newsletters, subscriber management, and automation. For transactional emails like password resets, consider pairing it with Resend or SendGrid.
  • Free tier includes 500 subscribers and 12,000 emails per month. MailerLite’s free plan is a solid starting point. Upgrade as your list grows.
  • Manage subscribers in MailerLite. You can add subscribers through Rocket, but removing subscribers, managing unsubscribes, and editing groups must be done in the MailerLite dashboard.
  • API token permissions matter. Generate a token with the permissions your app needs. Read-only tokens cannot add subscribers or send emails.
  • One MailerLite account per project. Each Rocket project connects to one MailerLite API token. Use different projects for different MailerLite accounts.

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What’s next?

Supabase

Store user data and sync subscriber information with your database.

Stripe

Trigger email sequences when users subscribe to paid plans.

Resend

Add transactional email alongside MailerLite for password resets and receipts.

Google Analytics

Track newsletter signup conversions and email-driven traffic.