Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

Aerosend

by Aerosend-Publicversion 1.0.0i★ –iRuns in the cloud
Registry nameio.aerosend/mcp

Install

Overview

Description from the maker (original English)

Manage Aerosend cold email domains, mailboxes, tags, warmup, inbox placement and domain burn.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Chat & email
  • You need to fill in: X-API-Key

Install

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

Before you install

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http aerosend https://mcp.aerosend.io/mcp --header 'X-API-Key: your-value'

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "aerosend": {
      "url": "https://mcp.aerosend.io/mcp",
      "headers": {
        "X-API-Key": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "aerosend": {
      "type": "http",
      "url": "https://mcp.aerosend.io/mcp",
      "headers": {
        "X-API-Key": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • X-API-Key secret HTTP header
    Aerosend API key (starts with aero_), from app.aerosend.io > Developer. Not needed if your client signs in with OAuth.

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

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

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 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain aerosend.io (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • … Not checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

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

Compared with others in Chat & emaili

  • More stars than 0% of the other 1782 servers in this category
  • Published to the registry more recently than 48% of the other 1782 servers in this category
  • Basic checks equal to or better than 100% of the other 1782 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 Aerosend safe?

It passed 1 of 1 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?

You need to fill in: X-API-Key

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 –, and the latest version (1.0.0) reached the registry 28 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 in developer mode.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

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

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

Vexa

by Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago
Install

emailmd

by anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 31 days ago
Install

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago
Install

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.

Aerosend MCP Server

Manage your Aerosend cold email infrastructure from Claude, ChatGPT, Cursor, VS Code or any MCP client. You can add domains and mailboxes, get SMTP/IMAP credentials, organize inventory with tags, and check warmup, inbox placement and domain burn.

The server is hosted, so there's nothing to install:

https://mcp.aerosend.io/mcp

Transport: Streamable HTTP. When you add that URL, sign-in opens by itself. New users can create an account on that page (Google or email). Or send the header X-API-Key: aero_....

Things to ask it

  • "Which of my domains are burnt or at risk, and what should I do about each one?"
  • "How many free domain and mailbox slots do I have?"
  • "Add these 10 domains and redirect them all to acme.com."
  • "Create 3 mailboxes on every active domain that has none yet, using Sarah Lee and Tom Park."
  • "Tag every domain for client Acme with acme, including their mailboxes."
  • "Give me the SMTP and IMAP settings for sarah@acme-mail.com."
  • "What was my inbox rate on Outlook in the last placement test?"

Connect

Claude (claude.ai, desktop, mobile)

Settings > Connectors > Add custom connector, then paste https://mcp.aerosend.io/mcp and sign in to Aerosend.

Claude Code
claude mcp add --transport http aerosend https://mcp.aerosend.io/mcp

Then run /mcp inside Claude Code to sign in. To use an API key instead:

claude mcp add --transport http aerosend https://mcp.aerosend.io/mcp --header "X-API-Key: aero_your_key"
ChatGPT

Settings > Apps & Connectors > Advanced, turn on developer mode, then create a connector with the URL https://mcp.aerosend.io/mcp and sign in.

Cursor

~/.cursor/mcp.json:

{

"mcpServers": { "aerosend": { "url": "https://mcp.aerosend.io/mcp" } } }

Cursor will prompt you to sign in. To use a key instead, add "headers": { "X-API-Key": "aero_your_key" }.

VS Code

.vscode/mcp.json:

{

"servers": { "aerosend": { "type": "http", "url": "https://mcp.aerosend.io/mcp", "headers": { "X-API-Key": "${input:aerosend-key}" } } }, "inputs": [ { "type": "promptString", "id": "aerosend-key", "description": "Aerosend API key", "password": true } ] }

Any other MCP client

Use URL https://mcp.aerosend.io/mcp, transport streamable-http, header X-API-Key: aero_your_key.

Get an API key at app.aerosend.io > Developer. Each account has one key, and regenerating it revokes the old one.

Agent rules

  • Aerosend is sending infrastructure (domains, mailboxes, warmup, placement, domain burn). It is not a sequencer and does not send campaigns.
  • Call get_me first. Respect slot limits. Max 3 mailboxes per domain.
  • Brand-new account with no plan: do not add domains or mailboxes. Tell the user to pick a plan at https://app.aerosend.io.
  • Deletes of pending items cannot be undone. Ask the user before deleting. Active domains: request_domain_deletion (notifies the team; does not delete immediately).
  • Never ask for Smartlead or Instantly API keys. Send them to https://app.aerosend.io/connect-sequencer

Tools

ToolWhat it doesChanges data?
get_meAccount status and free domain/mailbox slotsNo
list_domains, get_domainDomains, status, warmup, DNS, tags, mailboxesNo
list_mailboxes, get_mailboxMailboxes, optionally with SMTP/IMAP credentialsNo
list_tags, get_tagTags and how many domains/mailboxes use themNo
list_warmup_scoresWarmup score per mailboxNo
get_inbox_placement_analyticsLatest inbox placement test, per ESP and per domainNo
get_domain_burn_report, get_domain_burn_detail, get_domain_burn_scan_statusDomain burn status, issues and recommended actionNo
get_domain_burn_sequencers, list_domain_burn_keys, get_domain_burn_connect_urlWhich Smartlead/Instantly accounts are connectedNo
add_domainsAdd domains (they start as pending, with warmup on)Adds
add_mailboxesAdd mailboxes to active domains (max 3 per domain)Adds
create_tags, map_tags_to_domains, map_tags_to_mailboxesCreate and attach tagsAdds
update_domain_redirect_urls, update_tagChange redirect URLs, rename or recolor tagsChanges
remove_tag_from_domains, remove_tag_from_mailboxes, delete_tagsDetach or delete tagsRemoves
delete_domains, delete_mailboxesDelete pending domains/mailboxes onlyRemoves
request_domain_deletionAsk the Aerosend team to delete active domainsSends a request

Your MCP client asks you to confirm before running tools that change or remove data.

Good to know

  • Domains go from pending to in_progress to active. Mailboxes can only be added once a domain is active.
  • Only pending domains and mailboxes can be deleted directly. For active domains, the assistant files a deletion request with the Aerosend team.
  • The assistant never asks for your Smartlead or Instantly API keys. You connect those at app.aerosend.io/connect-sequencer.
  • The API behind the server allows 60 requests per minute per account.

Links

This repository holds the server's public metadata (server.json), docs and changelog. Report problems in Issues.

Ask PopNx