Sendsoon MCP

Name: Sendsoon MCP
Author: sendsoon

by sendsoonversion 0.3.8i★ –iRuns on your computer

Registry nameio.github.sendsoon/mcp

Install

Overview

Description from the maker (original English)

Send email, look up public IP information, and convert files to Markdown through SendSoon.

PopNx MCP’s three pillars

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

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

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 on your computer
Transport: stdio
Category: Chat & email
You need to fill in: SENDSOON_API_KEY

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: SENDSOON_API_KEY

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

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "sendsoon": {
      "command": "npx",
      "args": [
        "-y",
        "@sendsoon/mcp"
      ],
      "env": {
        "SENDSOON_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add sendsoon --env SENDSOON_API_KEY=your-value -- npx -y @sendsoon/mcp

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": {
    "sendsoon": {
      "command": "npx",
      "args": [
        "-y",
        "@sendsoon/mcp"
      ],
      "env": {
        "SENDSOON_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": {
    "sendsoon": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@sendsoon/mcp"
      ],
      "env": {
        "SENDSOON_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 one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

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

Values you fill in

SENDSOON_API_KEY secret env
SendSoon API Key (ssk_live_...). Leave empty for the anonymous trial of three sends per public IP per day.

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account sendsoon, which owns the repo
… 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Chat & emaili

More stars than 0% of the other 1766 servers in this category
Published to the registry more recently than 27% of the other 1766 servers in this category
Basic checks equal to or better than 100% of the other 1766 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 Sendsoon MCP 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: SENDSOON_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.3.8) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js, Python (uv) on your computer.

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 WhatsApp Cloud

by codespar

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.

SendSoon AI MCP

English | 简体中文 | 日本語

SendSoon MCP is a Model Context Protocol (MCP) server that lets Codex, Claude, and WorkBuddy use SendSoon capabilities: send email, look up public IPs, and convert local documents to Markdown.

Configure it once, then describe tasks in natural language. You usually do not need to mention SendSoon in every prompt.

What you can do

Tool	Purpose	Example
`send_email`	Send a single email	“Send me a test email”
`ip_lookup`	Look up public IP information	“Look up the location of 8.8.8.8”
`markitdown_convert`	Convert a local document to Markdown	“Convert this PDF to Markdown”

Everyday examples

Send an email to user@example.com with the subject “Meeting reminder” and the body “The meeting starts at 3 PM today.”

Look up the location and ISP for 8.8.8.8.

Convert /path/to/report.pdf to Markdown and summarize the key points.

If the agent does not select a tool automatically, say:

Use the sendsoon MCP to complete this task.

Install in your AI client

The instructions below cover Codex, Claude Desktop, and WorkBuddy.

Codex

Config file: user-level ~/.codex/config.toml (macOS / Linux) or %USERPROFILE%\.codex\config.toml (Windows).

[mcp_servers.sendsoon]

command = "npx" args = ["-y", "@sendsoon/mcp"]

[mcp_servers.sendsoon.env] SENDSOON_API_KEY = ""

Verify: Save the file, restart Codex, and run /mcp in a chat. You should see sendsoon connected. In the desktop app, also check Settings > MCP servers.

First use: Start a new conversation and ask for a simple task (e.g. “Look up 8.8.8.8”). Approve the tool if Codex asks for permission.

Claude Desktop

Config file:

OS	Path
macOS	`~/Library/Application Support/Claude/claude_desktop_config.json`
Windows	`%APPDATA%\Claude\claude_desktop_config.json`

You can also open Settings > Developer > Edit Config inside Claude Desktop.

"mcpServers": { "sendsoon": { "command": "npx", "args": ["-y", "@sendsoon/mcp"], "env": { "SENDSOON_API_KEY": "" } } } }

Verify: Save the file, fully quit Claude Desktop (including the system tray), then relaunch. Start a new chat and confirm sendsoon tools appear in the tools menu or settings.

First use: Claude may ask to approve tool access on the first invocation; allow it to continue.

WorkBuddy

WorkBuddy can add SendSoon by pasting the connector JSON directly in MCP Server Management.

Config file: %USERPROFILE%\.workbuddy-ai\mcp.json (Windows) or ~/.workbuddy-ai/mcp.json (macOS / Linux).

Open WorkBuddy and go to MCP Server Management.
Click Add MCP.
Paste the JSON below into the editor. Fill in SENDSOON_API_KEY if you have a Key; leave it empty for the anonymous trial.
Click Save.

"mcpServers": { "sendsoon": { "command": "npx", "args": [ "-y", "@sendsoon/mcp" ], "env": { "SENDSOON_API_KEY": "" } } } }

The screenshot shows the WorkBuddy connector editor: the configuration file path is at the top, and the sendsoon JSON is pasted into the editor. After saving, return to the MCP list and confirm sendsoon is connected.

Verify: Start a new conversation and ask for a simple task (e.g. “Look up 8.8.8.8”). Approve the tool if WorkBuddy asks for permission.

Prepare the configuration

Optional environment variable:

Setting	Required	What to enter
`SENDSOON_API_KEY`	No	Leave empty for an unregistered trial. One public IP can send up to three free test emails per day. Enter your generated Key for continued use

Never commit a real Key to Git or share it with anyone.

Get an API Key

Sign up or sign in on the SendSoon registration page.
Open Profile and generate a Key in the API Key section.
Copy the one-time ssk_live_... Key immediately and enter it as SENDSOON_API_KEY in your MCP configuration.
Save the configuration and restart your MCP client. Requests with a valid Key do not use the anonymous IP daily quota.

If the anonymous quota is exhausted, send_email will tell you to register and configure a Key. An invalid or revoked Key is rejected and does not fall back to the anonymous quota.

Try it in Google Colab

Skip local setup and try ip_lookup, markitdown_convert, and send_email in the browser.

The notebook calls the same SendSoon HTTP APIs used by these MCP tools.

Visual local testing (MCP Inspector)

To see all three tools in a browser and click through them manually before installing into an AI client, use the MCP Inspector.

Requires Node.js 20+. Run the command below in a terminal; Inspector opens a web UI automatically:

npx @modelcontextprotocol/inspector npx -y @sendsoon/mcp

How to test

Wait for MCP Inspector Web is up and running in the terminal. If the browser does not open, paste the http://127.0.0.1:6274?... URL from the terminal.
Confirm the page header shows Connected.
Open the Tools tab in the top-right area of the page.
Select a tool from the list on the left, fill in the parameters, and click Execute Tool.
Read the response in the Results panel on the right. On failure, inspect error.code and error.message.

License

See LICENSE.

Sendsoon MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

SendSoon AI MCP

What you can do

Everyday examples

Install in your AI client

Codex

Claude Desktop

WorkBuddy

Prepare the configuration

Get an API Key

Try it in Google Colab

Visual local testing (MCP Inspector)

How to test

License