Who maintains Email Inbox API + Sending by Sendmux?

Email Inbox API + Sending by Sendmux is maintained by Sendmux, which publishes 1 MCP server (3 total versions) tracked on MCP Toplist.

Is Email Inbox API + Sending by Sendmux listed on the Official MCP Registry?

Yes — Email Inbox API + Sending by Sendmux is listed on the Official MCP Registry, alongside Glama and mcp.so.

How many versions does Email Inbox API + Sending by Sendmux have?

MCP Toplist tracks 3 versions of Email Inbox API + Sending by Sendmux, most recently published on Aug 19, 2026.

Where can I find the source code for Email Inbox API + Sending by Sendmux?

The source code for Email Inbox API + Sending by Sendmux is hosted at github.com/Sendmux/sendmux-sdk.

SERVER

Email Inbox API + Sending by Sendmux

Rank #1,826

io.github.Sendmux/sendmux-mcp

AI email inbox and sending tools with attachments, search, live events, and webhooks.

3 versions

73 GitHub stars

by Sendmux (1 servers)View repository ↗

First listed

Jun 19, 2026

Last publish date

Aug 19, 2026

OVERVIEW

Email Inbox API + Sending by Sendmux is a Model Context Protocol (MCP) server published by Sendmux. It ranks #1,826 of 115,591 servers tracked on MCP Toplist, and its repository has 73 GitHub stars. Email Inbox API + Sending by Sendmux is listed across 3 registries — Official MCP, Glama and mcp.so, with 3 tracked versions. It was first listed on Jun 19, 2026 and most recently updated on Aug 19, 2026.

STANDING

#1,826of 115,591 tracked serversTop 5%

Ranks ahead of 113,765 of 115,591 servers on MCP Toplist.

CONNECT

Use Email Inbox API + Sending by Sendmux

No setupRuns out of the box

No credentials or required configuration declared — add it to your MCP client and go.

Remote · HTTP

claude mcp add --transport http sendmux-mcp https://mcp.sendmux.ai/mcp

Python package (PyPI)

claude mcp add sendmux-mcp -e "SENDMUX_MCP_SURFACES=<your SENDMUX_MCP_SURFACES>" -e "SENDMUX_MAILBOX_API_KEY=<your SENDMUX_MAILBOX_API_KEY>" -e "SENDMUX_MANAGEMENT_API_KEY=<your SENDMUX_MANAGEMENT_API_KEY>" -e "SENDMUX_SENDING_API_KEY=<your SENDMUX_SENDING_API_KEY>" -- uvx sendmux-mcp

Replace each placeholder with your own value before saving.

Remote · HTTP

[mcp_servers.sendmux-mcp]
url = "https://mcp.sendmux.ai/mcp"

Add to ~/.codex/config.toml.

Python package (PyPI)

[mcp_servers.sendmux-mcp]
command = "uvx"
args = ["sendmux-mcp"]

[mcp_servers.sendmux-mcp.env]
SENDMUX_MCP_SURFACES = "<your SENDMUX_MCP_SURFACES>"
SENDMUX_MAILBOX_API_KEY = "<your SENDMUX_MAILBOX_API_KEY>"
SENDMUX_MANAGEMENT_API_KEY = "<your SENDMUX_MANAGEMENT_API_KEY>"
SENDMUX_SENDING_API_KEY = "<your SENDMUX_SENDING_API_KEY>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

Remote · HTTP

https://mcp.sendmux.ai/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

Python package (PyPI)

{
  "mcpServers": {
    "sendmux-mcp": {
      "command": "uvx",
      "args": [
        "sendmux-mcp"
      ],
      "env": {
        "SENDMUX_MCP_SURFACES": "<your SENDMUX_MCP_SURFACES>",
        "SENDMUX_MAILBOX_API_KEY": "<your SENDMUX_MAILBOX_API_KEY>",
        "SENDMUX_MANAGEMENT_API_KEY": "<your SENDMUX_MANAGEMENT_API_KEY>",
        "SENDMUX_SENDING_API_KEY": "<your SENDMUX_SENDING_API_KEY>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "mcpServers": {
    "sendmux-mcp": {
      "url": "https://mcp.sendmux.ai/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

Python package (PyPI)

{
  "mcpServers": {
    "sendmux-mcp": {
      "command": "uvx",
      "args": [
        "sendmux-mcp"
      ],
      "env": {
        "SENDMUX_MCP_SURFACES": "<your SENDMUX_MCP_SURFACES>",
        "SENDMUX_MAILBOX_API_KEY": "<your SENDMUX_MAILBOX_API_KEY>",
        "SENDMUX_MANAGEMENT_API_KEY": "<your SENDMUX_MANAGEMENT_API_KEY>",
        "SENDMUX_SENDING_API_KEY": "<your SENDMUX_SENDING_API_KEY>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "servers": {
    "sendmux-mcp": {
      "type": "http",
      "url": "https://mcp.sendmux.ai/mcp"
    }
  }
}

Save as .vscode/mcp.json in your workspace.

Python package (PyPI)

{
  "servers": {
    "sendmux-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "sendmux-mcp"
      ],
      "env": {
        "SENDMUX_MCP_SURFACES": "<your SENDMUX_MCP_SURFACES>",
        "SENDMUX_MAILBOX_API_KEY": "<your SENDMUX_MAILBOX_API_KEY>",
        "SENDMUX_MANAGEMENT_API_KEY": "<your SENDMUX_MANAGEMENT_API_KEY>",
        "SENDMUX_SENDING_API_KEY": "<your SENDMUX_SENDING_API_KEY>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "mcpServers": {
    "sendmux-mcp": {
      "serverUrl": "https://mcp.sendmux.ai/mcp"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Python package (PyPI)

{
  "mcpServers": {
    "sendmux-mcp": {
      "command": "uvx",
      "args": [
        "sendmux-mcp"
      ],
      "env": {
        "SENDMUX_MCP_SURFACES": "<your SENDMUX_MCP_SURFACES>",
        "SENDMUX_MAILBOX_API_KEY": "<your SENDMUX_MAILBOX_API_KEY>",
        "SENDMUX_MANAGEMENT_API_KEY": "<your SENDMUX_MANAGEMENT_API_KEY>",
        "SENDMUX_SENDING_API_KEY": "<your SENDMUX_SENDING_API_KEY>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "mcpServers": {
    "sendmux-mcp": {
      "url": "https://mcp.sendmux.ai/mcp"
    }
  }
}

Python package (PyPI)

{
  "mcpServers": {
    "sendmux-mcp": {
      "command": "uvx",
      "args": [
        "sendmux-mcp"
      ],
      "env": {
        "SENDMUX_MCP_SURFACES": "<your SENDMUX_MCP_SURFACES>",
        "SENDMUX_MAILBOX_API_KEY": "<your SENDMUX_MAILBOX_API_KEY>",
        "SENDMUX_MANAGEMENT_API_KEY": "<your SENDMUX_MANAGEMENT_API_KEY>",
        "SENDMUX_SENDING_API_KEY": "<your SENDMUX_SENDING_API_KEY>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.Sendmux%2Fsendmux-mcp.svg)](https://mcptoplist.com/server/io.github.Sendmux%2Fsendmux-mcp)

HTML

<a href="https://mcptoplist.com/server/io.github.Sendmux%2Fsendmux-mcp"><img src="https://mcptoplist.com/badge/io.github.Sendmux%2Fsendmux-mcp.svg" alt="MCP Toplist: Top 5% of 115,591" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

REGISTRIES

Listed on 3 registries

Glama

Official MCP

mcp.so

ORGANIZATION

Sendmux

Organization

Sendmux

Servers in org

Versions across org

VERSIONS

Available versions (3)

Version	Published
1.6.1	Aug 19, 2026
1.6.0	Aug 18, 2026
1.2.0	Jul 1, 2026

FAQ

Frequently asked questions

Who maintains Email Inbox API + Sending by Sendmux?: Email Inbox API + Sending by Sendmux is maintained by Sendmux, which publishes 1 MCP server (3 total versions) tracked on MCP Toplist.
Is Email Inbox API + Sending by Sendmux listed on the Official MCP Registry?: Yes — Email Inbox API + Sending by Sendmux is listed on the Official MCP Registry, alongside Glama and mcp.so.
How many versions does Email Inbox API + Sending by Sendmux have?: MCP Toplist tracks 3 versions of Email Inbox API + Sending by Sendmux, most recently published on Aug 19, 2026.
Where can I find the source code for Email Inbox API + Sending by Sendmux?: The source code for Email Inbox API + Sending by Sendmux is hosted at github.com/Sendmux/sendmux-sdk.

EXPLORE

All MCP Servers Official MCP Servers GitHub MCP Servers Best MCP Servers Most Active MCP Servers New MCP Servers Best New MCP Servers