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PopNx MCPMCP servers for people who use AI · explained in plain words

Mailzzy

by softsagesversion 1.0.1i★ 0iRuns in the cloud
Registry namecom.mailzzy/mcp

How to install

What it does

Email marketing: campaigns, audiences, contacts, segments, templates and reports.

  • Connects Runs in the cloud
  • Account or key Sign in to the service when you connect (OAuth)
  • Category Marketing & social media

Install

Pick the AI app you use, then copy the settings.

Passed 4/5 checks · What you ask goes through the maker’s server (api.mailzzy.com)

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

  1. Open Claude’s Connectors page

    CustomizeConnectors

    CustomizeConnectors1+ Add2https://…3Add4
  2. Click “+ Add” → “Add custom connector” and fill in these 2 fields

    Copy each value into the field with the same name in Claude, then click Continue

    Name · NameMailzzy
    Remote MCP server URL · Addresshttps://api.mailzzy.com/crm/mcp/

    Leave Authentication as Claude detected it, then click Add

  3. Turn it on in a chat

    +ConnectorsMailzzy

  4. Try it

    Use Mailzzy and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Mailzzy or shows a Mailzzy tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT on business plans only

ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet

  1. Open ChatGPT’s add-MCP page on the web

    Plugins+Add custom MCP server

    ChatGPTPlugins1+2https://…3Create4
  2. Fill in the name and address

    Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin

    Name · NameMailzzy
    Connection · Addresshttps://api.mailzzy.com/crm/mcp/
  3. Pick Mailzzy in a chat

    Start a new chat and pick Mailzzy from your plugins before typing

  4. Try it

    Use Mailzzy and tell me what you can do for me, then show me one thing

    ✓ If ChatGPT says it is using Mailzzy or shows a Mailzzy tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

  1. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  2. Paste this command and press Enter

    claude mcp add --transport http --scope user mailzzy https://api.mailzzy.com/crm/mcp/
  3. Type /mcp in Claude Code

    You should see Mailzzy listed as connected

  4. Try it

    Use Mailzzy and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Mailzzy or shows a Mailzzy tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

  1. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  2. Open the AI chat in Cursor in Agent mode

  3. Try it

    Use Mailzzy and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Mailzzy or shows a Mailzzy tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

  1. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  2. Open the AI chat in VS Code in Agent mode

  3. Try it

    Use Mailzzy and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Mailzzy or shows a Mailzzy tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://api.mailzzy.com/crm/mcp/

JSON settings are under “For developers” below

Stuck? Ask people who use Mailzzy💬 Discussion →
For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user mailzzy https://api.mailzzy.com/crm/mcp/

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "mailzzy": {
      "url": "https://api.mailzzy.com/crm/mcp/"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "mailzzy": {
      "type": "http",
      "url": "https://api.mailzzy.com/crm/mcp/"
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

Downloads per weeki
Not on npm/PyPI
Verified domain
✓ mailzzy.com
Licencei
No licence stated
Connection
Runs in the cloud
Transport
streamable-http
Latest versioni
1.0.1
Published to registryi
Oct 8, 2026
Code last changedi
Nov 4, 2026
Maker
softsages
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

What it can do

The server asks you to sign in before it lists its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 12, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain mailzzy.com (the registry checks domain ownership)

  • ✓ Pass

    Still maintained

    Code last changed 8 days ago

  • ! Caution

    Has a licence

    GitHub could not identify the licence type; open the file to check

  • ✓ Pass

    Endpoint responds

    Responded in 824 ms (HTTP 401)

  • ✓ Pass

    Sign-in with OAuth

    Declares OAuth sign-in, so your AI app can take you to log in

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

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User reviews

No reviews yet

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Compared with others in Marketing & social mediai

  • More stars than 0% of the other 3811 servers in this category
  • Published to the registry more recently than 45% of the other 3811 servers in this category
  • Basic checks equal to or better than 61% of the other 3811 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Mailzzy safe?

It passed 4 of 5 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed 8 days ago, and the latest version (1.0.1) reached the registry 35 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT Business and above.

What can I use instead?

In the same category: PostHog MCP Server, Openshorts, Google Ads + Meta Ads + SEO/GEO MCP

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

PostHog MCP Server

Official PostHog MCP Server for product analytics, feature flags, experiments, and more.

by PostHogWidely used★ 40.7K Stars for the whole repoUpdated 10 months ago

Runs in the cloud

Openshorts

Turn long videos into viral vertical shorts and publish them to TikTok, Instagram and YouTube.

by mutonbyWidely used★ 7.7KUpdated 3 months ago

Runs in the cloud

Google Ads + Meta Ads + SEO/GEO MCP

Google Ads, Meta Ads, Google Analytics (GA4) & Search Console MCP server by Ryze AI

by irinabuht12-ossWidely used★ 7.4KUpdated 31 days ago

Runs in the cloud

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Mailzzy MCP Server

Connect Claude, ChatGPT, Cursor, VS Code and other MCP clients to your Mailzzy account. Ask your assistant to build an audience, draft a campaign, check it against your sending limits, send a test, and schedule it, then pull the performance report when it goes out.

This is a hosted MCP server. There is nothing to install or run: point your client at the URL below and sign in with your Mailzzy account.

https://api.mailzzy.com/crm/mcp/
Documentationhttps://mailzzy.com/docs/#mcp-overview
TransportStreamable HTTP
AuthenticationOAuth 2.1 with PKCE and dynamic client registration (sign in with Mailzzy)
Tools49 (full list)
Account neededYes, a Mailzzy account (sign up)
Registry namecom.mailzzy/mcp

This repository holds documentation and the registry manifest only. The server itself is

operated by SoftSages and is not open source.

What you can do

  • Campaigns: draft, update, send a test to yourself, send now or schedule, and cancel a scheduled campaign.
  • Audiences: pick groups, segments or tags, see the de-duplicated recipient count, and check it against your daily and monthly sending limits before you send.
  • Contacts: create, update, tag, group, archive, bulk-import from CSV, and export a segment or group as CSV.
  • Segments: build saved filters, preview how many contacts match, then save them.
  • Templates and automations: create and edit email templates and automation workflows.
  • Transactional email: send a one-to-one email and read delivery logs.
  • Reports: campaign metrics, performance over a date range, and per-domain deliverability.
Example prompts
  • "Show me my last five campaigns and their open rates."
  • "Create a segment of contacts tagged webinar-sept who opened anything in the last 30 days, and tell me how many that is."
  • "Draft a campaign announcing our October sale to that segment, send me a test, and schedule it for Tuesday 10am my time."
  • "Which recipient domains are bouncing most this month?"

Listings

Connect your client

Claude (claude.ai, desktop and mobile)

Settings > Connectors > Add custom connector, paste https://api.mailzzy.com/crm/mcp/, then Connect and sign in.

Claude Code
claude mcp add --transport http mailzzy https://api.mailzzy.com/crm/mcp/

Then run /mcp inside Claude Code and choose Authenticate.

ChatGPT

Settings > Apps and Connectors > Advanced > turn on Developer mode, then Create a connector with the URL https://api.mailzzy.com/crm/mcp/ and authentication OAuth.

Cursor

~/.cursor/mcp.json:

{

"mcpServers": { "mailzzy": { "url": "https://api.mailzzy.com/crm/mcp/" } } }

VS Code (GitHub Copilot agent mode)

.vscode/mcp.json:

{

"servers": { "mailzzy": { "type": "http", "url": "https://api.mailzzy.com/crm/mcp/" } } }

Cline

In the Cline panel open MCP Servers > Configure > Remote Servers, then add:

  • Server Name: mailzzy
  • Server URL: https://api.mailzzy.com/crm/mcp/
  • Transport Type: Streamable HTTP

Or edit cline_mcp_settings.json directly (Configure > Configure MCP Servers):

{

"mcpServers": { "mailzzy": { "type": "streamableHttp", "url": "https://api.mailzzy.com/crm/mcp/", "disabled": false, "autoApprove": [] } } }

Sign in with your Mailzzy account when Cline opens the browser. If the server shows an authentication error, remove it and add it again to restart the sign-in. Setup notes written for Cline itself are in llms-install.md.

Any other MCP client

Use the URL with Streamable HTTP transport. The server answers unauthenticated requests with 401 and a WWW-Authenticate header pointing at its protected resource metadata, so any client that follows the MCP authorization spec can discover the authorization server and register itself.

Authentication and permissions

  • You sign in on Mailzzy's own login page. Your password is never shared with the AI client.
  • The client receives a short-lived access token scoped to your account. Every tool call acts as you and can only see your own account's data.
  • Scopes advertised: mcp:read, mcp:write, mcp:send.
  • Every tool carries MCP annotations. Read tools are marked read-only. Sending a campaign or transactional email, deleting a contact, and cancelling a campaign are marked destructive, so well-behaved clients ask you to confirm before running them.
  • To disconnect, remove the connector in your client.

Privacy and security

  • Privacy policy: https://www.mailzzy.com/privacy-policy/
  • Terms of use: https://www.mailzzy.com/terms-of-use/
  • Report a vulnerability: see SECURITY.md

Support

  • Email: support@mailzzy.com
  • Contact page: https://www.mailzzy.com/contact-us/
  • Documentation issues with this repository: open a GitHub issue.

Mailzzy is a product of SoftSages.