Email Inbox API + Sending by Sendmux

latest · 1.6.1

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

GitHub: Sendmux/sendmux-sdk
Homepage: sendmux.ai
MCP registry: io.github.sendmux/sendmux-mcp

Install

Needs env vars: SENDMUX_MCP_SURFACES, SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY — replace the <placeholders> with your values.

claude mcp add io-github-sendmux-sendmux-mcp --env SENDMUX_MCP_SURFACES=<SENDMUX_MCP_SURFACES> --env SENDMUX_MAILBOX_API_KEY=<SENDMUX_MAILBOX_API_KEY> --env SENDMUX_MANAGEMENT_API_KEY=<SENDMUX_MANAGEMENT_API_KEY> -- uvx sendmux-mcp

/mcp confirms it's connected.

Install

Or add it manually in ~/.cursor/mcp.json:

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

In claude_desktop_config.json (Settings → Developer → Edit Config), then restart:

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

Config entry, any MCP client:

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

Community score

Community53/ 100

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Web signals (ecosystem baseline)53/100 · 100% of the weight

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What the web says

Ecosystem baseline53/ 100

Objective public usage & activity (formula v3) — the community score's web-signals input, and its own sort.

GitHubsource ↗

GitHub stars · 4 days ago: ★ 65
Last commit · 4 days ago: 1 day ago
Issue close rate · 4 days ago: 90%
Release cadence · 4 days ago: multiple releases a day
Latest release · 4 days ago: python-mcp-v2.2.0
License · 4 days ago: MIT

Packages

No package-registry data collected yet.

Listed on

Glama · 10 hours ago: Listed · Glama quality score 3.8 ↗

Mentions

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Docs & livenesssource ↗

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Version history1

1.6.1release date unknown

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Details

Transport: stdio
Status: listed
Source: Imported from the MCP registry
Repository: source ↗
Homepage: site ↗