--- title: "Connect MailerLite Classic to Customer Fields - APIANT.ai" description: "When \"New Group\" fires in MailerLite Classic, your agent runs \"Create Customer\" in Customer Fields." canonical: "https://apiant.ai/connect/mailerlite-classic-to-customer-fields" --- # Connect MailerLite Classic to Customer Fields When **New Group** fires in [MailerLite Classic](https://apiant.ai/connections/mailerlite-classic), your agent runs **Create Customer** in [Customer Fields](https://apiant.ai/connections/customer-fields). Describe the whole flow and it is built, tested on every scenario and kept running. MailerLite Classic **1** trigger MailerLite Classic **18** actions Customer Fields **7** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want MailerLite Classic and Customer Fields to do together? Give your AI client this address. `https://mcp.apiant.ai` One 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.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) Example flows ## What MailerLite Classic can start in Customer Fields - When **New Group** in MailerLite Classic then **Create Customer** in Customer Fields - When **New Group** in MailerLite Classic then **Update Customer** in Customer Fields 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 Classic and Customer Fields ## Triggers and actions 1 trigger · 25 actions - Trigger **New Group** Triggered when a new subscriber group is created in MailerLite. - Action **Add Subscriber to Group** Adds a subscriber to a MailerLite group, creating the subscriber if they do not exist yet. - Action **Create Campaign** Creates a new regular or A/B email campaign addressed to the chosen groups or segments. Its HTML content is added afterwards. - Action **Create Group** Creates a new subscriber group in the MailerLite account and returns the created group. - Action **Delete Campaign** Deletes a campaign from the MailerLite account. A scheduled campaign cannot be deleted until it has been cancelled. - Action **Delete Group** Deletes a subscriber group from the MailerLite account. - Action **Find Group by Name** Returns the subscriber groups that match the specified group name. - Action **Get Group** Returns one subscriber group by its id, including its name, subscriber counts, email activity totals and dates. - Action **List Campaigns** Returns the campaigns in your MailerLite account with the chosen status, with a basic summary and open and click stats for each campaign. - Action **List Groups** Returns the subscriber groups in the MailerLite account, with each group's subscriber counts, email stats and created and updated dates. - Action **List Segments** Returns the segments stored in your MailerLite account, with each segment's title, rules, subscriber count and email engagement totals. - Action **List Subscriber Groups** Returns the groups a subscriber belongs to, with each group's subscriber counts and sent, opened and clicked totals. - Action **List Subscribers** Returns the subscribers in the MailerLite account, optionally limited to one status such as active or unsubscribed. - Action **Remove Subscriber From a Group** Removes a subscriber from a group, identified by the subscriber's id or email address. The subscriber stays in the account and in any other groups. - Action **Search Subscribers** Returns the subscribers in your MailerLite account that match a search term, such as an email address or name. - Action **Send Campaign** Sends a draft campaign immediately or schedules it for a later time, and returns the campaign with its status and emails. - Action **Set Campaign Content** Sets the HTML and plain-text content of a draft campaign, replacing what the campaign's email contains. - Action **Unsubscribe Subscriber** Marks a subscriber as unsubscribed across the MailerLite account and returns the updated subscriber. Their name and fields can be updated in the same step. - Action **Update Group** Renames an existing subscriber group and returns the updated group with its subscriber and email counts. - Action **Create Customer** Creates a new customer in Customer Fields and Shopify, including any custom data columns defined on the account. - Action **Find a Customer** Returns the customers whose email address matches the one you specify, including their custom data column values. - Action **List data columns** Returns every data column defined in the Customer Fields account, including built-in customer fields and the merchant's custom columns. - Action **List forms** Returns the account's non-archived Customer Fields forms, with each form's id and name. - Action **List segments** Returns the customer segments in the Customer Fields account, including whether each one can be subscribed to by a webhook. - Action **Send Account Invite** Sends an account invite email to a customer so they can activate their store account. The customer must have a Shopify id and must not already have an enabled account. - Action **Update Customer** Updates an existing customer in Customer Fields and Shopify, including custom data column values, and returns the updated customer. ## Each app on its own - [ **MailerLite Classic** Use MailerLite Classic to stay connected with your customers through email marketing.](https://apiant.ai/connections/mailerlite-classic) - [ **Customer Fields** Customer Fields provides a way to collect and store custom data for Shopify customers](https://apiant.ai/connections/customer-fields) Reviews ## What our customers say ## More from MailerLite Classic - [ **MailerLite Classic to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/mailerlite-classic-to-salesforce) - [ **MailerLite Classic to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailerlite-classic-to-slack) - [ **MailerLite Classic to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailerlite-classic-to-stripe) - [ **MailerLite Classic to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailerlite-classic-to-shopify) - [ **MailerLite Classic to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/mailerlite-classic-to-quickbooks-online) - [ **MailerLite Classic to Pipedrive** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/mailerlite-classic-to-pipedrive) ## More into Customer Fields - [ **HubSpot to Customer Fields** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-customer-fields) - [ **Salesforce to Customer Fields** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-customer-fields) - [ **Slack to Customer Fields** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-customer-fields) - [ **Google Sheets to Customer Fields** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-customer-fields) - [ **Gmail to Customer Fields** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-customer-fields) - [ **Google Calendar to Customer Fields** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-customer-fields) Questions ## MailerLite Classic and Customer Fields, answered ### ### What can start an automation from MailerLite Classic? Any of MailerLite Classic's 1 trigger in the catalog, including New Group. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Customer Fields when something happens in MailerLite Classic? Any of Customer Fields's 7 actions, including Create Customer, Send Account Invite, Update Customer and Find a Customer. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Customer Fields to MailerLite Classic? Customer Fields has no triggers in the catalog today, so automations start in MailerLite Classic. If you need the other direction, ask: your agent reads Customer Fields's API documentation and adds it. ### ### Do I have to build a connector for MailerLite Classic or Customer Fields? 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 Classic and Customer Fields 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.