# MailerLite AI integration on Definable

> MailerLite is an email marketing service that offers tools for creating and managing email campaigns, automating workflows, and building landing pages.

## What this connects

MailerLite is an email marketing service that offers tools for creating and managing email campaigns, automating workflows, and building landing pages.

Vendor: https://www.mailerlite.com/

## Tools available

**86** tools available. First 12:

- `MAILERLITE_ADD_PRODUCT_TO_CATEGORY` — Add Product to Category — Tool to add a product to a category in an e-commerce shop. Use when you need to assign or link a product to a specific category for organization and marketing purposes.
- `MAILERLITE_ADD_SUBSCRIBER_TO_GROUP` — Add Subscriber To Group — Tool to assign an existing subscriber to a group. Use when you need to add a subscriber to a specific group in your MailerLite account.
- `MAILERLITE_CREATE_AUTOMATION` — Create automation — Create automation
- `MAILERLITE_CREATE_CAMPAIGN` — Create Campaign — Tool to create a new email campaign (draft) with specified type, content, and targeting. Use when you need to create a campaign programmatically with email settings and optional audience targeting via groups or segments. HTML content support is also plan-dependent; insufficient plan capabilities result in `can_be_scheduled=false` on the created draft.
- `MAILERLITE_CREATE_ECOMMERCE_CART_ITEM` — Create E-commerce Cart Item — Tool to add an item to a shopping cart. Creates the cart if it does not exist. Use for abandoned cart automation.
- `MAILERLITE_CREATE_ECOMMERCE_CATEGORY` — Create E-commerce Category — Tool to create a new product category for a shop. Use when organizing products into categories or setting up shop taxonomy with automation preferences.
- `MAILERLITE_CREATE_ECOMMERCE_CUSTOMER` — Create/Update E-commerce Customer — Tool to create or update a customer record for a shop. Use when syncing shop customers or onboarding new purchases.
- `MAILERLITE_CREATE_ECOMMERCE_ORDER` — Create E-commerce Order — Tool to create a new order for a shop. Use when recording customer purchases or syncing order data from external systems.
- `MAILERLITE_CREATE_ECOMMERCE_PRODUCT` — Create E-commerce Product — Tool to create a new product for an e-commerce shop. Use when adding products to a shop for tracking sales, automations, and customer interactions.
- `MAILERLITE_CREATE_ECOMMERCE_SHOP` — Create E-commerce Shop — Tool to connect a new e-commerce shop. Use when you need to integrate a store for automations, product imports, and sales tracking.
- `MAILERLITE_CREATE_FIELD` — Create Field — Tool to create a new custom field. Use when distinct subscriber attributes are needed before assigning or updating subscriber data. Call once per field key.
- `MAILERLITE_CREATE_GROUP` — Create Group — Tool to create a new subscriber group. Use after deciding the group name for categorization. Store `group_id` from the response — required by MAILERLITE_UPDATE_GROUP, MAILERLITE_DELETE_GROUP, and MAILERLITE_GET_GROUP_SUBSCRIBERS.

## Auth

Auth schemes: `API_KEY`.

## How agents use MailerLite

Inside a Definable workflow, MailerLite is one of the tools the **Distributor specialist** can call. Example coordination patterns:

- **Researcher → MailerLite** — the Researcher (GPT-5.5) pulls context from MailerLite (records, threads, documents), synthesises findings, and briefs the rest of the team.
- **Writer → Distributor → MailerLite** — the Writer (Claude Opus 4.7) drafts copy in brand voice, the Verifier passes it, then the Distributor writes the result into MailerLite (create record, post message, draft email).
- **Designer / Engineer → Distributor → MailerLite** — the Designer ships an asset or the Engineer ships a code change, the Distributor delivers it via MailerLite (attach file, open PR comment, post status).

The Verifier checks every MailerLite call. On rate limit, schema drift, or auth refresh it self-heals and retries — the workflow completes without manual intervention.

## Categories

- email newsletters — https://definable.ai/apps/category/email-newsletters/
- marketing automation — https://definable.ai/apps/category/marketing-automation/

## Related

- HTML page: https://definable.ai/apps/mailerlite/
- Same category (email newsletters): https://definable.ai/apps/category/email-newsletters/
- All integrations: https://definable.ai/apps/
- Workflow (multi-agent loop): https://definable.ai/workflow/
- Apps llms.txt index: https://definable.ai/llms-apps.txt