LABSCO SUMMARY

Campaigns drafted, never sent by accident.

Campaigns are created as drafts, so an assistant can assemble the broadcast, the sequence or the flow and leave the decision to send with a person.

What it is

A Mailtani client that exposes a marketing account as tools: contacts and lists, segments built from conditions, campaigns as broadcasts, sequences and flows, transactional sends, tags, custom fields and event tracking.

What you get

Contacts listed, created or upserted, updated and deleted
Lists created and listed, with contacts added to and removed from them
Segments built from conditions, and the contacts currently matching one
Campaigns created as drafts — broadcast, sequence or flow — and listed back
Sent emails listed, and a one-off transactional email sent
Tags and custom fields created, listed and deleted
A custom event tracked against a contact, which is what triggers a flow

Requirements

A Mailtani API key and your project id, sent as two headers on every call. The server is hosted at mailtani.com — nothing to install, and clients connect over HTTP.

Setup effort

One command plus a key — claude mcp add --transport http mailtani https://mailtani.com/mcp --header "Authorization: Bearer mk_YOUR_API_KEY" --header "X-Project-Id: YOUR_PROJECT_ID"

See installation options

USE CASES

01

Getting a new signup into the right list

Create or upsert the contact, then put them on the list that drives the welcome flow.

create-contactadd-contact-to-list

02

Building the audience for a send

Create the list, work through the contacts, and add the ones that belong on it.

create-listlist-contactsadd-contact-to-list

03

Cleaning up a list before a campaign

Correct the records that are wrong and take off the ones that should not receive it.

list-contactsupdate-contactremove-contact-from-list

04

Honouring a deletion request

Remove the contact outright rather than only unsubscribing them.

delete-contact

05

Finding out what a project already has

The lists that exist and who is on them, before creating another one by mistake.

list-listslist-contacts

23 tools

Listed in project docs. Your client may show a different list.

list-contacts

create-contact

update-contact

delete-contact

list-lists

create-list

add-contact-to-list

remove-contact-from-list

list-segments

create-segment

get-segment-contacts

list-campaigns

create-broadcast

create-sequence

create-flow

BEFORE YOU INSTALL

What to know first

Tools you get

23 tools named in the project's documentation.

Requires

A client that can reach a remote MCP server over HTTP
A Mailtani API key (Settings → API Keys), sent as Authorization: Bearer mk_…
Your project ID (Settings → API), sent as the X-Project-Id header

INSTALLATION

Connect your client

Server setup

claude mcp add

Claude Code

TERMINAL

claude mcp add --transport http mailtani https://mailtani.com/mcp \
  --header "Authorization: Bearer <YOUR_API_KEY>" \
  --header "X-Project-Id: <YOUR_PROJECT_ID>"

Hosted endpoint

ENDPOINT URL

https://mailtani.com/mcp

Add this hosted endpoint to your MCP client using the credentials listed under Requirements.

MCP Clients

Cursor

CURSOR · JSON

{
  "mcpServers": {
    "mailtani": {
      "type": "http",
      "url": "https://mailtani.com/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>",
        "X-Project-Id": "<YOUR_PROJECT_ID>"
      }
    }
  }
}

mailtani