usefulapi

MailerLite MCP server. Read subscribers, groups, campaigns, fields, segments, automations, webhooks; safe additive writes.

Claude

Open Settings → Connectors → Add custom connector
Paste this URL:
https://mailerlite.usefulapi.io/mcp
Authenticate with MailerLite when prompted

Cursor · VS Code · Windsurf · Cline

Add to your MCP config, then reload & authorize:

{
  "mcpServers": {
    "mailerlite": {
      "url": "https://mailerlite.usefulapi.io/mcp"
    }
  }
}

live15 toolsFree 100 tool calls / monthPro $9/mo · $90/yr

Tools 15

Tool	Type	What it does
`mailerlite_list_subscribers`	read	List subscribers List subscribers, optionally filtered by status. Cursor-paginated. MailerLite API: GET /subscribers.
`mailerlite_get_subscriber`	read	Get subscriber Fetch a single subscriber by id or email address. MailerLite API: GET /subscribers/{id}.
`mailerlite_list_groups`	read	List groups List subscriber groups/lists, optionally filtered by name. Page-paginated. MailerLite API: GET /groups.
`mailerlite_list_group_subscribers`	read	List group subscribers List the subscribers belonging to a group, optionally filtered by status. Cursor-paginated. MailerLite API: GET /groups/{group_id}/subscribers.
`mailerlite_list_campaigns`	read	List campaigns List campaigns, optionally filtered by status. Page-paginated. Read-only — this server does NOT send campaigns. MailerLite API: GET /campaigns.
`mailerlite_get_campaign`	read	Get campaign Fetch a single campaign by id. Read-only. MailerLite API: GET /campaigns/{campaign_id}.
`mailerlite_list_fields`	read	List fields List custom/default subscriber fields, optionally filtered by type or keyword. Page-paginated. MailerLite API: GET /fields.
`mailerlite_list_segments`	read	List segments List segments. Page-paginated. MailerLite API: GET /segments.
`mailerlite_list_automations`	read	List automations List automations (workflows), optionally filtered by enabled state. Page-paginated. MailerLite API: GET /automations.
`mailerlite_list_webhooks`	read	List webhooks List configured webhooks. Page-paginated. MailerLite API: GET /webhooks.
`mailerlite_upsert_subscriber`	write	Upsert subscriber Creates or updates a subscriber (upsert by email). Additive — does NOT send any email. MailerLite API: POST /subscribers.
`mailerlite_create_group`	write	Create group Creates a subscriber group/list (additive). MailerLite API: POST /groups.
`mailerlite_assign_subscriber_to_group`	write	Assign subscriber to group Adds a subscriber to a group (additive membership). MailerLite API: POST /subscribers/{subscriber_id}/groups/{group_id}.
`mailerlite_usage_status`	meta	Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter.
`mailerlite_upgrade`	meta	Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED MailerLite tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Read-only; does not count against the meter.

Pricing

Plan	Price	Limit
Free	$0	100 tool calls / month
Pro	$9/mo · $90/yr	Unlimited

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.