MailerLite

Create a new subscriber group

create_group

Create a new subscriber segment, with or without filter rules. Filter format: [[{"operator": "...", "args": [...]}]] — an array of AND groups; groups are OR'd together. Do NOT wrap it in a {"rules": [...]} object. Reference for common operators (args[0] is always the field): - in_last / not_in_last — args: [field, N, unit]; unit is one of y,M,w,d,h,m,s. field: subscribed_at, last_sent_at, last_activity_at, last_open_at, last_click_at, created_at. Example — opened in the last 90 days: ["last_open_at", 90, "d"] - less / greater — args: [field, value]. field: opens_count, clicks_count, sent, open_rate, click_rate. Example — click rate under 20%: ["click_rate", 20] - equals — args: [field, value]. field: source, opens_count, clicks_count, sent, timezone_id, open_rate, click_rate, location.country_code - doesnt_equal — args: [field, value]. field: source, timezone_id, location.country_code - in_any / not_in_any — args: [field, value | [values]]. field: groups, campaigns.sent/opened/clicked/delivered, automations.active/completed (not_in_any also allows automations.all), ecommerce.purchased_products.product_id/variant_id, location.country_code - in_all / not_in_all — args: [field, [values]]. field: groups only - is_set — args: [field] (no value). field: campaigns.sent/opened/clicked/delivered, timezone_id, location.country_code, automations.active/completed - is_not_set — args: [field] (no value). field: groups, campaigns.sent/opened/clicked/delivered, timezone_id, location.country_code, automations.active/completed/all, ecommerce.purchased_products.product_id - before / after — args: [field, date]. field: subscribed_at, created_at - matches / doesnt_match / contains / doesnt_contain — args: [field, value]. field: email only - text_field_contains/doesnt_contain/equals/doesnt_equal, numeric_field_less/less_or_equal/greater/greater_or_equal/equals/doesnt_equal, date_field_less/less_or_equal/greater/greater_or_equal/equals/doesnt_equal/in_last/after_interval, field_is_set/field_is_not_set — for CUSTOM fields only; args[0] is the field's ID from list_fields, as a STRING (e.g. "5", not 5) Example — opened in the last 90 days AND click rate under 20%: [[{"operator": "in_last", "args": ["last_open_at", 90, "d"]}, {"operator": "less", "args": ["click_rate", 20]}]] An invalid operator/field pairing is rejected locally with the valid options before the API is called. Omit filter to create a name-only segment and configure rules later in the dashboard.

create_segment

Create a new webhook. Events requiring batchable=true: campaign.open, campaign.click, subscriber.deleted

create_webhook

Delete an automation

delete_automation

Delete a step from an automation's workflow. For condition or A/B test steps, branch_to_keep says what happens to the branches below it: "yes"/"no"/"a_path"/"b_path"/"c_path" keeps that one branch and reattaches it in the step's place, or "all" removes every branch. A step that another step depends on — the target of a "go to step" action, of a condition, or of a delay's "continue from chosen step" — cannot be deleted until that reference is removed. The automation must be disabled.

delete_automation_step

Delete a campaign

delete_campaign

Delete a custom subscriber field

delete_field

Delete a form

delete_form

Delete a subscriber group

delete_group

Delete a segment.

delete_segment

Delete a subscriber from the account. If no subscriber matches the ID, this returns a normal (non-error) result with success: false rather than failing — a missing subscriber is an expected outcome, not a tool error.

delete_subscriber

Delete a webhook

delete_webhook

Browse pre-built automation workflow templates, optionally matched to a user's goal. Returns each template's id, name, trigger, and step flow. Args: - type (enum): all | welcome | promotion | reminder | event | feedback | date. - user_intent (string, optional): The user's goal (e.g. "abandoned cart") used for keyword matching against template names/descriptions. Returns: { templates: [{ id, name, trigger_label, complexity, email_count, total_duration, steps[], steps_are_sample }], matched, match_method }. When a template has no real step data from the API, "steps" is filled with an illustrative sample flow and "steps_are_sample" is set to true. Examples: - "show me welcome templates" -> type="welcome". - To create an automation from a result, pass its numeric id to install_template.

discover_automation_templates

Fetch the full record for a single MailerLite resource using an identifier returned by the search tool. Always call search first to obtain this id — never guess or fabricate one. Args: - id (string, required): A prefixed identifier from search results formatted "<kind>:<id>" where kind is campaign, group, form, automation, or segment (e.g. "campaign:123"). Alternatively, a bare id (no prefix) if "type" is also given. - type (string, optional): One of campaign, group, form, automation, segment. Required only when "id" is a bare id without a "<kind>:" prefix. Returns: { "id": string, "title": string, "text": string, "url": string, "metadata": object }. "text" is the full resource serialized as JSON; "metadata" carries kind-specific summary fields (e.g. status/type for campaigns, active_count for groups). Examples: - After search returns "automation:012" -> fetch with id="automation:012". - If you already have a bare numeric id and know its kind -> fetch with id="123", type="group". - An id without a "<kind>:" prefix and no "type" argument, an unsupported kind, or an id that matches nothing returns an actionable error telling you to call search first.

fetch

Check with MailerLite whether this connection still works, and return its account details.

get_auth_status

Get activity log for an automation. Filter by status (completed, active, canceled, failed), date range, and subscriber email.

get_automation_activity

Read one email step of an automation: subject, preheader, sender, reply-to, plain text and HTML. Works for emails designed in the visual editor and for HTML set via update_automation_email_content. The HTML is the stored source: merge tags such as {$name} and {$unsubscribe} and conditional blocks are kept as written, so edit it in place and pass it back to update_automation_email_content without re-adding them.

get_automation_email

Get performance stats for an automation: sent, opens, clicks and unsubscribes, overall and for each email. list_automations already shows a short summary per automation. Use this tool for monthly totals, per-email numbers, or one email's numbers over a date range. Args: - automation_id (string): The automation ID. - months (3 | 6 | 12, optional): How many months of monthly totals to return. Defaults to 3. - email_id (string, optional): One email in the automation (an id from this tool's emails[]). Returns that email's engagement and deliverability instead of the automation overview. - start_date, end_date (Y-m-d, optional): Limit the email_id report to a period, both days included. Pass both or neither, and only with email_id. Returns: without email_id, { automation_id, activity, monthly[], emails[] }. activity counts subscriber runs by status. Each email in emails[] has id, name, subject and stats. With email_id, { automation_id, email_report: { email_id, engagement, deliverability } }.

get_automation_stats

Get details of a specific campaign. If no campaign matches the ID, this returns a normal (non-error) result with found: false rather than failing — a missing campaign is an expected outcome, not a tool error.

get_campaign

Get subscribers who clicked a specific link in a campaign.

get_campaign_link_recipients

Get all tracked links in a sent campaign, including their IDs, URLs, and click counts.

get_campaign_links

Get subscriber activity for a sent campaign (opens, clicks, etc.). Results are page-paginated — increment the page number to fetch more results.

get_campaign_subscribers

Generate a MailerLite dashboard URL for a resource, or for an account-level settings destination. resource_type: "automation", "campaign", "form", or "segment" (each needs resource_id); "group" (with resource_id, links to that group's filtered subscriber list; without it, links to the groups list); or one of the settings_* types — "settings_domains" (domain/sender verification), "settings_account" (company profile, postal address), "settings_api" (API keys), "settings_billing" (subscription, plan, invoices), "settings_security" (two-factor authentication enforcement), "settings_profile" (password, name, photo, email, language, newsletter — on the SSO account profile), "settings_team" (team members), "settings_webhooks" (webhook management), "settings_notifications" (email notifications), "settings_integrations" (integrations overview), "settings_subscribe" (double opt-in settings), "settings_unsubscribe" (unsubscribe page), "settings_preference_center" (subscriber preference center), "settings_brand_styles" (brand styles) — none of the settings_* types need resource_id.

get_dashboard_link

Get e-commerce revenue reports: the orders and revenue attributed to campaigns and automations, and what a shop or subscriber has earned. Read-only. Reports: - campaign: a campaign's order count, revenue, average order value and conversion rate in one shop, plus its best performing email. Requires campaign_id and shop_id. - campaign_orders: the individual orders attributed to a campaign. Requires campaign_id and shop_id. - shop: a shop's attributed orders and revenue over a period of up to one year, as totals and a day-by-day series. Requires shop_id, start_date and end_date. - subscriber: a subscriber's lifetime order count, revenue and average order value in one shop. Requires subscriber_id and shop_id. - subscriber_orders: a subscriber's orders in one shop. Requires subscriber_id and shop_id. - automation: an automation's attributed orders, revenue and conversion rate, plus its best performing email. Requires automation_id. - automation_email: one automation email's attributed orders and revenue. Requires automation_id and email_id. - automation_orders: the individual orders attributed to an automation. Requires automation_id. - settings: whether e-commerce tracking is on for campaigns and automations, and the attribution window in days. The automation reports cover the automation's whole history unless start_date and end_date are given, and shop_id narrows them to one shop. Revenue is attributed in the background within the attribution window, so a very recent order may not be counted yet.

get_ecommerce_report

Get details of a specific form

get_form

Get subscribers who signed up via a specific form. Results are page-paginated — increment the page number to fetch more results.

get_form_subscribers

Get subscribers in a specific group. Results are cursor-paginated — pass the cursor from the previous response to fetch the next page. If no group matches the ID, this returns a normal (non-error) result with found: false rather than failing — a missing group is an expected outcome, not a tool error.

get_group_subscribers

Check for additional tools whenever your task might benefit from specialized capabilities - even if existing tools could work as a fallback.

get_more_tools

Get details of a specific segment

get_segment

Get subscribers belonging to a specific segment. Results are cursor-paginated — pass the cursor from the previous response to fetch the next page.

get_segment_subscribers

Get subscriber information by ID or email. Requires an ID or email — MailerLite has no way to look subscribers up by name. If you only have a name, ask the user for the subscriber's email or ID rather than calling list_subscribers to search for them. If no subscriber matches, this returns a normal (non-error) result with found: false rather than failing — a missing subscriber is an expected outcome, not a tool error.

get_subscriber

Get activity history for a subscriber (opens, clicks, etc.). If no subscriber matches the ID or email, this returns a normal (non-error) result with found: false rather than failing — a missing subscriber is an expected outcome, not a tool error.

get_subscriber_activity

Get the count of subscribers in the account. By default returns the total across all statuses; pass status to get the count for just that status (e.g. unsubscribed).

get_subscriber_count

Get a specific webhook by ID

get_webhook

Import multiple subscribers to a group at once. Existing subscribers may be updated or resubscribed, and enabling autoresponders can send automation emails.

import_subscribers_to_group

Install a pre-built automation template, creating a new (inactive) automation in the account. You MUST obtain template_id from discover_automation_templates first — template IDs are long numeric strings (e.g. "178927102220830454"); a non-numeric value is rejected. Args: - template_id (string): Numeric template ID from discover_automation_templates results. Returns: { success, automation_id, automation_name, dashboard_url, next_steps }. Examples: - After discover returns a "Welcome series" template with id "178...", call install_template with that exact id. - Emails still need to be designed in the dashboard after installing.

install_template

List resources by type: "group", "form", "shop", or "segment" (plurals like "groups" are also accepted).

list_resources

List languages available for campaign localization, with their numeric IDs, for use as `language_id` on create_campaign or update_campaign.

list_campaign_languages

List campaigns with optional status and type filters. Results are cursor-paginated — pass the cursor from the previous response to fetch the next page.

list_campaigns

List email templates (visual designs) with optional search filter.

list_email_templates