MailerLite - Atako

Let your agents manage subscribers and groups, read custom fields, forms and automations, and prepare campaign drafts in MailerLite.

Connection

Authentication: API key (API token).

Sign in to MailerLite → Integrations → MailerLite API → Generate new token. Name it (e.g. “Atako”), then copy the token right away: MailerLite never shows it again. The token acts with the rights of the user who created it and stops working if that user is removed from the account.See MailerLite’s documentation.

Read actions (9)

Action	Description
`get_campaign`	Fetch one campaign (content settings, recipients, status and stats) by id from list_campaigns.
`get_subscriber`	Fetch one subscriber by MailerLite id or by email address (subscriber: string, id or email).
`list_automations`	List automations with their stats. filter[enabled]: true for active, false for inactive; filter[name] matches by name; filter[group]: a group id from list_groups, returns automations triggered by that group.
`list_campaigns`	List campaigns. filter[status]: sent, draft or ready (MailerLite defaults to ready); filter[type]: regular, ab, resend or rss. Page pagination (page starts at 1).
`list_fields`	List subscriber fields (default and custom) with their key and type. filter[keyword] matches partially; filter[type]: text, number or date; sort: name or type, prefix with - for descending.
`list_forms`	List signup forms of one type (type required: popup, embedded or promotion) with their stats. filter[name] matches partially; sort: created_at, name, conversions_count, opens_count, visitors, conversion_rate or last_registration_at, prefix with - for descending.
`list_group_subscribers`	List the subscribers of a group (group_id from list_groups). filter[status] defaults to active on MailerLite’s side. Cursor pagination: pass meta.next_cursor as cursor.
`list_groups`	List groups (with subscriber counts and rates). filter[name] matches partially; sort: name, total, open_rate, click_rate or created_at, prefix with - for descending. Page pagination (page starts at 1).
`list_subscribers`	List subscribers, optionally filtered by status. Cursor pagination: pass meta.next_cursor from the previous page as cursor. include: “groups” adds each subscriber’s groups.

Write actions (5)

Action	Description
`add_subscriber_to_group`	Add an existing subscriber to a group. Arguments: subscriber_id (string, the numeric MailerLite subscriber id from get_subscriber or list_subscribers — not an email); group_id (string, numeric group id from list_groups).
`create_campaign_draft`	Create a regular campaign as a DRAFT (never sent nor scheduled by this action; send it from MailerLite). Arguments: name (string, required); emails (array of exactly ONE object, required: subject string, from_name string, from string — a sender address already verified in MailerLite, optional reply_to string — also verified, optional content string of full HTML — only on MailerLite plans that allow custom HTML, see their pricing page; without content, design the email in MailerLite); groups (optional array of group ids as strings, from list_groups; omit to choose recipients later in MailerLite).
`remove_subscriber_from_group`	Remove a subscriber from a group (the subscriber stays in the account). Arguments: subscriber_id (string, numeric subscriber id — not an email); group_id (string, numeric group id from list_groups).
`unsubscribe_subscriber`	Unsubscribe an email address without deleting it (sets status to unsubscribed; groups and fields are kept). Argument: email (string, required). If the address is not yet in the account, it is added directly as unsubscribed.
`upsert_subscriber`	Create a subscriber, or update it if the email already exists (non-destructive: omitted fields and groups are kept). Arguments: email (string, required); fields (object: field key → string, number or null, keys from list_fields, e.g. {“name”: “Ada”, “last_name”: “Lovelace”}); groups (array of group ids as strings, from list_groups — adds only, never removes); status (one of active, unsubscribed, unconfirmed, bounced, junk); resubscribe (boolean, true to reactivate a previously unsubscribed address); subscribed_at, opted_in_at, unsubscribed_at (strings “yyyy-MM-dd HH:mm:ss”); ip_address, optin_ip (strings, IP addresses).

Permissions

Every action above must be explicitly granted to an agent before it can be used. See Permissions for the grant model and Security for how credentials are protected.

Last reviewed against the provider API: September 2026.