EricGrill MailerLite Automation
Automate email marketing operations -- manage subscribers, analyze campaign performance, organize groups and segments, and monitor account health -- all orchestrated through the Composio MCP integration.
Toolkit docs: composio.dev/toolkits/mailerlite
Setup
- Connect your MailerLite account through the Composio MCP server at
https://rube.app/mcp - The agent will prompt you with an authentication link if no active connection exists
- Once connected, all
MAILERLITE_*tools become available for execution
Core Workflows
1. Verify Account & Fetch Metadata
Retrieve account details including plan limits and timezone to ensure consistent reporting.
Tool: MAILERLITE_GET_ACCOUNT_INFO
No parameters required -- returns account metadata, plan details, and timezone configuration.
Always run this first to establish plan constraints and timezone for consistent time-windowed queries.
2. Get Account-Wide Performance Stats
Retrieve aggregate subscriber counts, sent email totals, and engagement metrics for a health snapshot.
Tool: MAILERLITE_GET_ACCOUNT_STATS
No parameters required -- returns overall subscriber counts, sent emails, and performance metrics.
3. List & Paginate Subscribers
Retrieve subscribers with optional status filtering and cursor-based pagination.
Tool: MAILERLITE_GET_SUBSCRIBERS
| Parameter | Type | Required | Description |
|---|---|---|---|
filter[status] |
string | No | Filter by: active, unsubscribed, unconfirmed, bounced, junk |
limit |
integer | No | Subscribers per page (default: 25) |
cursor |
string | No | Pagination cursor from previous response meta.cursor |
include |
string | No | Set to groups to include group memberships |
Important: Loop with meta.next_cursor until null to build a complete subscriber list.
4. List & Analyze Campaigns
Retrieve campaigns with optional status/type filters and page-based pagination.
Tool: MAILERLITE_GET_CAMPAIGNS
| Parameter | Type | Required | Description |
|---|---|---|---|
filter[status] |
string | No | Filter by: sent, draft, ready |
filter[type] |
string | No | Filter by: regular, ab, resend, rss |
limit |
integer | No | Items per page (default: 25) |
page |
integer | No | Page number (default: 1) |
Important: Paginate using meta.last_page to avoid omitting campaigns from historical analysis.
5. Manage Subscriber Groups
List, filter, and sort subscriber groups for audience organization.
Tool: MAILERLITE_GET_GROUPS
| Parameter | Type | Required | Description |
|---|---|---|---|
filter[name] |
string | No | Partial name match filter |
limit |
integer | No | Max groups to return |
page |
integer | No | Page number (starting from 1) |
sort |
string | No | Sort by: name, total, open_rate, click_rate, created_at (prefix - for descending) |
6. Retrieve Audience Segments & Custom Fields
Fetch segments and custom field definitions for advanced audience analysis.
Tools: MAILERLITE_GET_SEGMENTS and MAILERLITE_GET_FIELDS
Segments:
| Parameter | Type | Required | Description |
|---|---|---|---|
limit |
integer | No | Max segments to return (max 250) |
page |
integer | No | Page number (starting from 1) |
Fields: No parameters required -- returns all custom field definitions.
Known Pitfalls
| Pitfall | Details |
|---|---|
| Subscriber pagination is cursor-based | MAILERLITE_GET_SUBSCRIBERS uses meta.next_cursor -- you must loop until null or counts will be incomplete |
| Campaign pagination is page-based | MAILERLITE_GET_CAMPAIGNS uses page/limit with meta.last_page -- stopping early omits campaigns and distorts trends |
| Sampling bias | Computing engagement metrics from only the first page introduces bias; always aggregate across all pages |
| Nested response shape | MailerLite payloads are nested under results[i].response.data with data and meta subkeys, not a flat data key -- parse accordingly |
| API quotas | Subscriber listing is limited by MailerLite Connect API quotas -- plan batch operations accordingly |
Quick Reference
| Tool Slug | Purpose |
|---|---|
MAILERLITE_GET_ACCOUNT_INFO |
Verify auth and review account metadata |
MAILERLITE_GET_ACCOUNT_STATS |
Get aggregate performance metrics |
MAILERLITE_GET_SUBSCRIBERS |
List subscribers with filtering and pagination |
MAILERLITE_GET_CAMPAIGNS |
List campaigns with status/type filters |
MAILERLITE_GET_GROUPS |
List and sort subscriber groups |
MAILERLITE_GET_SEGMENTS |
List audience segments |
MAILERLITE_GET_FIELDS |
Retrieve custom field definitions |
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