Mailerlite MCP Server

by usefulapi Your server? Claim it

answering

Mailerlite is answering right now. Last checked 15 min ago. It exposes 13 tools. Last commit 1 Sep 2026.

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

Uptime history 47 days of history · worst day 21%

47 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

166 ms

Response time

average over 24h

Stars

last commit 1 Sep 2026

Nothing serious here today

Today is the operative word: we check Mailerlite every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mailerlite --transport http https://mailerlite.usefulapi.io/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

[mcp_servers.mailerlite]
url = "https://mailerlite.usefulapi.io/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 13

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

mailerlite

mailerlite_assign_subscriber_to_group

Adds a subscriber to a group (additive membership). MailerLite API: POST /subscribers/{subscriber_id}/groups/{group_id}.

mailerlite_create_group

Creates a subscriber group/list (additive). MailerLite API: POST /groups.

mailerlite_get_campaign

Fetch a single campaign by id. Read-only. MailerLite API: GET /campaigns/{campaign_id}.

mailerlite_get_subscriber

Fetch a single subscriber by id or email address. MailerLite API: GET /subscribers/{id}.

mailerlite_list_automations

List automations (workflows), optionally filtered by enabled state. Page-paginated. MailerLite API: GET /automations.

mailerlite_list_campaigns

List campaigns, optionally filtered by status. Page-paginated. Read-only — this server does NOT send campaigns. MailerLite API: GET /campaigns.

mailerlite_list_fields

List custom/default subscriber fields, optionally filtered by type or keyword. Page-paginated. MailerLite API: GET /fields.

mailerlite_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_groups

List subscriber groups/lists, optionally filtered by name. Page-paginated. MailerLite API: GET /groups.

mailerlite_list_segments

List segments. Page-paginated. MailerLite API: GET /segments.

mailerlite_list_subscribers

List subscribers, optionally filtered by status. Cursor-paginated. MailerLite API: GET /subscribers.

mailerlite_list_webhooks

List configured webhooks. Page-paginated. MailerLite API: GET /webhooks.

mailerlite_upsert_subscriber

Creates or updates a subscriber (upsert by email). Additive — does NOT send any email. MailerLite API: POST /subscribers.

Endpoints

URL	Transport	State	Latency	Checked
https://mailerlite.usefulapi.io/mcp	streamable-http	answering	180 ms	15 min ago

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Mailerlite — questions

Answers built from our own checks of this server.

What can Mailerlite do?

It exposes 13 tools, read directly from the server on our last check. Among them: mailerlite_assign_subscriber_to_group, mailerlite_create_group, mailerlite_get_campaign, mailerlite_get_subscriber, mailerlite_list_automations, mailerlite_list_campaigns and 7 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Mailerlite working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 166 ms. The bar chart above shows every period we have measured.

How do I connect Mailerlite?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Mailerlite need an API key?

No. Mailerlite completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 13 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Mailerlite?

It answers our handshake in 166 ms on average, which is faster than 73% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Mailerlite open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.