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

AhaSend

by AhaSendversion 0.1.1i★ –iRuns in the cloud
Registry namecom.ahasend/mcp

Install

Overview

Description from the maker (original English)

Send email, check deliverability, set up domains, and run templates, contacts and campaigns.

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

Install

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

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://mcp.ahasend.com/mcp

Run this in your terminal

claude mcp add --transport http ahasend https://mcp.ahasend.com/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "ahasend": {
      "url": "https://mcp.ahasend.com/mcp"
    }
  }
}

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": {
    "ahasend": {
      "type": "http",
      "url": "https://mcp.ahasend.com/mcp"
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://mcp.ahasend.com/mcp

Menu names can differ slightly by plan and over time.

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

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 ahasend.com (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 1778 servers in this category
  • Published to the registry more recently than 54% of the other 1778 servers in this category
  • Basic checks equal to or better than 100% of the other 1778 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 AhaSend 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?

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 –, and the latest version (0.1.1) reached the registry 23 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.

ahasend-mcp

A Go module with MCP tools for AhaSend. With these tools, an AI agent can send email, find out why an email failed, and manage domains, templates, contacts, lists, campaigns, webhooks, routes, suppressions, SMTP credentials and sub-accounts.

Each tool calls the AhaSend v2 API through ahasend-go. The API key's scopes decide what the agent can do.

The module builds a server with the official Go MCP SDK. Your program chooses how to serve it: stdio, HTTP, or any other SDK transport.

go get github.com/AhaSend/ahasend-mcp

Example

server, err := ahasendmcp.NewServer(

&mcp.Implementation{Name: "my-app", Version: "1.0.0"}, ahasendmcp.Options{ Client: api.NewAPIClient(api.WithAPIKey(apiKey)), AccountID: accountID, DashboardBaseURL: "https://dash.ahasend.com", ConfirmationKey: key, // at least 32 random bytes }, ) if err != nil { return err } return server.Run(ctx, &mcp.StdioTransport{})

Options

FieldWhat it does
ClientThe ahasend-go client, with the API key. Required.
AccountIDThe account the tools work on. Required.
DashboardBaseURLThe AhaSend dashboard URL, used in campaign links. Required.
ConfirmationKeyA secret of at least 32 bytes that signs campaign send questions. Required.
ScopesThe API key's scopes. Only tools the key can use are shown. nil shows every tool.
ToolsetsShow only these toolsets. nil shows all.
ReadOnlyShow only tools that change nothing.
StatelessSet to true if you serve over stateless HTTP.
MaxRecipientsPerSendThe most recipients for one send. Default 50.
ReadInboundLet the message tools return email the account received. Off by default.
BlockedIf set, every tool call returns this text as an error and does nothing.
RecorderGets one record per tool call: tool name, success, error kind and time taken. Never the inputs or results.

If you serve many users, build a new server for each request with that user's key and scopes. This is cheap. Use the same ConfirmationKey on every instance.

Catalogue() lists every tool with the scopes it needs. OfferedScopes() lists every scope the tools use, for a page where a user picks scopes.

Tools

ToolsetTools
sendingsend_email, send_conversation_email, send_template_email, cancel_scheduled_email
diagnosticslist_messages, get_message, diagnose_message, get_deliverability_stats, get_bounce_stats, get_delivery_time_stats
domainslist_domains, get_domain, add_domain, check_domain_dns, update_domain, delete_domain
templateslist_templates, get_template, get_published_template, create_template, update_template, delete_template, discard_template_draft, publish_template, list_template_versions, get_template_version, restore_template_version, list_campaign_templates, get_campaign_template, create_campaign_template, update_campaign_template, delete_campaign_template
audiencelist_contacts, get_contact, create_contact, upsert_contacts, update_contact, delete_contact, list_contact_lists, list_lists, get_list, create_list, update_list, delete_list, list_list_contacts, add_contacts_to_list, upsert_list_contact, remove_contact_from_list, list_segments, get_segment, create_segment, update_segment, delete_segment, preview_segment, list_segment_contacts, list_contact_segments
campaignslist_campaigns, get_campaign, create_campaign, update_campaign, delete_campaign, duplicate_campaign, send_campaign_test, send_campaign, schedule_campaign, unschedule_campaign, get_campaign_stats, list_campaign_recipients
managementget_account, list_webhooks, get_webhook, create_webhook, update_webhook, delete_webhook, list_routes, get_route, create_route, update_route, delete_route, list_suppressions, add_suppression, remove_suppression, list_smtp_credentials, get_smtp_credential, delete_smtp_credential, list_sub_accounts, get_sub_account, create_sub_account, update_sub_account, get_sub_account_usage

Each tool needs the scopes its API endpoint needs. send_campaign and schedule_campaign also need campaigns:read and lists:read, and segments:read to send a campaign that uses segments. The campaign template tools also need campaigns:read. preview_segment, list_segment_contacts and list_contact_segments need contacts:read as well as segments:read.

List tools return 20 items by default and at most 100. Pass the returned cursor to get the next page.

There are no tools to create API keys or SMTP credentials, change account settings, billing or team members, remove all suppressions, or delete or suspend sub-accounts.

Simple Editor designs and AhaML

The template, campaign template and campaign tools read and write a design of the dashboard's Simple Editor as AhaSend Markup (AhaML), an XML form of the design, in the content's markup field. get_template returns a template's working copy, the draft while one exists, so an agent edits what it read; get_published_template returns the copy a send uses.

The server has one resource, ahasend://docs/ahaml: the AhaML reference, with every tag, attribute, limit and error code. It is also at https://ahasend.com/docs/send-api/ahaml. The resource is listed on every connection, so an agent without web access can read it.

Safety rules

Campaign sends need a person's yes. send_campaign and schedule_campaign show the user a form with the send time, the number of contacts, the campaign name, subject, sender, lists and segments, and the excluded lists and segments. They send only if the user answers yes. If the campaign changes after the question, the tool asks again. If the client cannot show a form, the tool sends nothing and returns a link to the campaign in the dashboard.

One-off sends have a recipient limit. A single send to more than MaxRecipientsPerSend recipients (default 50) is refused. Use a campaign for bulk email.

Received email is hidden by default. Anyone can send email to an account's inbound addresses, and that email can contain text that tries to trick the agent. Unless ReadInbound is on, the message tools do not return received email. When it is on, received messages are marked untrusted: true.

Errors

When the API refuses a call, the tool returns an error with the API's message and what to do next. When it refuses AhaML, the error lists the problems, up to the first 100, each with its code, line, column, path and hint; the API's message gives how many there are.

Trying it locally

cmd/ahasend-mcp-dev serves every tool over stdio with your own API key. It is for testing only.

go build -o ahasend-mcp-dev ./cmd/ahasend-mcp-dev

claude mcp add ahasend \ -e AHASEND_API_KEY=... -e AHASEND_ACCOUNT_ID=... \ -- ./ahasend-mcp-dev

Set AHASEND_BASE_URL to use an API other than the default.

License

MIT

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