Integration
Connect MailerLite and Polar
When Subscriber Added to Group fires in MailerLite, your agent runs Create Customer in Polar, or Benefit Created in Polar to Change Subscriber Email in MailerLite. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want MailerLite and Polar to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What MailerLite and Polar can do together
From MailerLite to Polar
When Subscriber Added to Group in MailerLite
then Create Customer in Polar
From Polar to MailerLite
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with MailerLite and Polar
Triggers and actions 31 triggers · 35 actions
- Campaign Sent
Triggers when a campaign has been sent out.
- Spam Complaint
Triggers when a subscriber issues a spam complaint about an email.
- Subscriber Added to Group
Triggers when a subscriber is added to a group.
- Subscriber Bounced
Triggers when an email to a subscriber bounces.
- Subscriber Completed Automation
Triggers when a subscriber completed a selected workflow.
- Subscriber Created
Triggers when a subscriber was created on your mailing list.
- Subscriber Fields Updated
Triggers when the subscriber fields have been updated.
- Subscriber Removed From Group
Triggers when a subscriber has been removed from a group.
- Subscriber Triggered Automation
Triggers when a subscriber triggers a selected workflow.
- Subscriber Unsubscribed
Triggers when a subscriber has unsubscribed from your mailing list.
- Add Subscriber to a Group
Add existing subscriber to a specific group by email address.
- Change Subscriber Email
Change subscriber email to another.
- Create a Draft Campaign
Create a Draft Campaign
- Create or Update Subscriber
Create a new subscriber or Update an existing subscriber based on their email.
- Create Subscribers Group
Create a new subscribers group.
- Find a Group
Search for a group by name
- Find a Subscriber
Search for a subscriber by email or name
- Remove Subscriber From a Group
Remove subscriber from a specific group by email address.
- Unsubscribe Subscriber
Sets the contact's status to "Unsubscribed".
- Benefit Created
Triggered when a new benefit is created in Polar.
- Benefit Updated
Triggered when a benefit is changed in Polar.
- Checkout Created
Triggered when a new checkout session is created in Polar.
- Checkout Expired
Triggered when a checkout session expires in Polar without being paid.
- Checkout Updated
Triggered when a checkout session changes in Polar, for example when it is confirmed or paid.
- Customer Created
Triggered when a new customer is created in Polar.
- Customer Deleted
Triggered when a customer is deleted in Polar.
- Customer State Changed
Triggered when a customer's state changes in Polar - their active subscriptions, granted benefits or meters.
- Customer Updated
Triggered when a customer's details change in Polar.
- Order Created
Triggers when a new order is placed in your Polar organization.
- Order Paid
Triggers when an order in your Polar organization is paid.
- Order Updated
Triggers when an order in your Polar organization changes.
- Product Created
Triggers when a new product is created in your Polar organization.
- Product Updated
Triggers when a product in your Polar organization changes.
- Subscription Active
Triggers when a subscription in your Polar organization becomes active.
- Subscription Canceled
Triggers when a customer cancels a subscription in your Polar organization.
- Subscription Created
Triggers when a new subscription is created in your Polar organization.
- Subscription Past Due
Triggers when a subscription in your Polar organization falls past due because a payment failed.
- Subscription Revoked
Triggers when a subscription in your Polar organization is revoked and the customer loses access.
- Subscription Uncanceled
Triggers when a customer reverses a pending cancellation and keeps a subscription in your Polar organization.
- Subscription Updated
Triggers when a subscription in your Polar organization changes.
- Add Subscription
Subscribes a customer to a free recurring product.
- Confirm Checkout Session
Completes an open checkout session so Polar creates the order. Works without payment only when the checkout needs none, for example a free product.
- Create Benefit
Creates a benefit in Polar that you can attach to products.
- Create Checkout Session
Creates a Polar checkout session for a product and returns the link the customer pays through.
- Create Customer
Creates a customer in Polar.
- Create Discount
Creates a discount in Polar, either a percentage off or a fixed amount off.
- Create Product
Creates a product in Polar with its price or prices.
- Delete Customer
Deletes a customer in Polar. Their subscriptions are cancelled and their benefits revoked.
- Get Checkout Session
Returns one Polar checkout session by its id, including its status and payment link.
- Get Customer
Returns one customer from Polar by their id, including any metadata you stored on them.
- Get Product
Returns one product from Polar by its id, with its prices and attached benefits.
- Get Subscription
Returns one subscription from Polar by its id, with its status, amount and current period.
- List Benefits
Returns a page of benefits from Polar.
- List Checkout Sessions
Returns a page of checkout sessions from Polar.
- List Customers
Returns a page of customers from Polar.
- List Discounts
Returns the discount codes set up in your Polar organization, newest first. You can narrow the list by organization or by name text, and page through the results.
- List Orders
Returns the orders placed in your Polar organization. You can narrow the list by product, customer, subscription, checkout, discount or status, and page through the results.
- List Products
Returns the products in your Polar organization, with their prices and benefits. You can narrow the list by name text, archived state, one-time versus subscription, or a benefit, and page through the results.
- List Subscriptions
Returns the subscriptions in your Polar organization. You can narrow the list by product, customer, discount, active state or status, and page through the results.
- Revoke Subscription
Cancels a Polar subscription immediately, ending the customer's access right away rather than at the end of the billing period.
- Update Benefit
Changes a benefit's description, visibility, settings or metadata.
- Update Checkout Session
Changes an open checkout session: buyer details, product, amount, metadata or redirect links.
- Update Customer
Updates an existing Polar customer. Only the fields you fill in are changed; anything left blank keeps its current value.
- Update Order
Changes the billing name or billing address shown on an order's invoice.
- Update Product
Updates an existing Polar product. Only the fields you fill in are changed; anything left blank keeps its current value.
- Update Subscription
Changes an existing Polar subscription — switch its product, apply a discount, adjust seats, move the trial end, or schedule or reverse a cancellation. Only the fields you fill in are changed.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
What our customers say
More from MailerLite
MailerLite to FrontrowFrontRow software allows small businesses to easily generate reviews online by requesting reviews from...
MailerLite to Hyperstack CertificatesHyperstack helps you easily create and manage digital certificates & badges for your events or courses.
MailerLite to SalesforceSalesforce is a leading enterprise customer relationship management (CRM) platform.
MailerLite to SlackSlack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...
MailerLite to Google DriveGoogle Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...
MailerLite to MailchimpMailchimp marketing automation and email platform.
More into Polar
Outlook to PolarOutlook is Microsoft's email and calendaring platform integrating contacts and scheduling, enabling users to...
Fillout Forms to PolarCreate powerful forms, surveys and quizzes your audience will answer with Fillout Forms.
Gallabox to PolarGallabox is no-code conversation workspace for business to grow sales
OutageDeck to PolarOutageDeck aggregates the official status feeds of more than 170 cloud and SaaS providers into one place.
HubSpot to PolarHubSpot is your all-in-one stop for all of your marketing software needs.
Google Sheets to PolarGoogle Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.
Questions
MailerLite and Polar, answered
What can start an automation from MailerLite?
Any of MailerLite's 10 triggers in the catalog, including Subscriber Added to Group, Subscriber Completed Automation, Subscriber Created and Subscriber Fields Updated. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Polar when something happens in MailerLite?
Any of Polar's 26 actions, including Create Benefit, Create Checkout Session, Create Customer and Create Discount. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Polar to MailerLite?
Yes. When something happens in Polar, your agent can act in MailerLite too. This page covers both directions: Polar's triggers and MailerLite's actions are listed here as well.
Do I have to build a connector for MailerLite or Polar?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use MailerLite and Polar without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.