Productivity · Local MCP server

sendsoon MCP

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

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What the MCP Registry states

The entry as published to the official MCP Registry (read 2026-10-04), latest version.

Registry name
io.github.sendsoon/mcp
Version
0.3.8
Status
Active
Category
productivity
Transport
stdio (local process)
Package
npm, PyPI
Published
2026-08-27
Updated
2026-08-27
Publisher
sendsoon (GitHub) · 2 servers with pages here
Listed under
Email MCP servers
Website
www.sendsoonai.com
Repository
github.com/sendsoon/mcp
Source
Registry API entry

Packages

RegistryPackageVersionTransportEnvironment variables
npm@sendsoon/mcp0.3.8stdioSENDSOON_API_KEY (secret)
PyPIsendsoon-mcp0.3.8stdioSENDSOON_API_KEY (secret)

How to connect sendsoon MCP

sendsoon MCP runs locally from a Node.js package published to the npm registry: @sendsoon/mcp version 0.3.8. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Node.js; clients usually start it with npx — the usual command is npx -y @sendsoon/mcp@0.3.8. It reads the environment variable SENDSOON_API_KEY (secret); set it in the client's configuration for this server.

sendsoon MCP runs locally from a Python package published to PyPI: sendsoon-mcp version 0.3.8. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Python; clients usually start it with uvx (from uv) or after pip install — the usual command is uvx sendsoon-mcp. It reads the environment variable SENDSOON_API_KEY (secret); set it in the client's configuration for this server.

In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@sendsoon/mcp@0.3.8"
      ],
      "env": {
        "SENDSOON_API_KEY": "<secret>"
      }
    }
  }
}

Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect

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