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MCP Registry/Email Inbox API + Sending by Sendmux
E

Email Inbox API + Sending by Sendmux

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

Import into drioUse with clientMarkdown

Install and compare this MCP server

Use this profile to copy client config, check auth requirements, review tools and resources, and compare related MCP servers before adding it to an AI client.

Install
uvx sendmux-mcp
Clients
Claude, Cursor, VS Code, Codex
Transport
STDIO, HTTP
Auth
Auth required by registry metadata
Capabilities
0 tools, 0 resources, 0 prompts
Related
onsense, Bowmark, nable

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InstallAuthTools & ResourcesOverview

Install

Connection

Transport
STDIO, HTTP
Endpoint
https://mcp.sendmux.ai/mcp
Command
uvx sendmux-mcp
Environment
{ "SENDMUX_MCP_SURFACES": "YOUR_VALUE_HERE", "SENDMUX_MAILBOX_API_KEY": "YOUR_SECRET_VALUE", "SENDMUX_MANAGEMENT_API_KEY": "YOUR_SECRET_VALUE", "SENDMUX_SENDING_API_KEY": "YOUR_SECRET_VALUE" }

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

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

Config location

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

Auth

Package transport

No remote HTTP endpoint is advertised. Use the package or stdio setup shown in Install.

Tools & Resources

Tools
0
Resources
0
Prompts
0
No public tools, resources, or prompts captured yet. Use Auth when this server requires credentials.

Tools

No tools captured yet.

Resources

No resources captured yet.

Prompts

No prompts captured yet.

Questions

What is Email Inbox API + Sending by Sendmux?+

Email Inbox API + Sending by Sendmux is an MCP server for AI email inbox and sending tools with attachments, search, live events, and webhooks.. It supports STDIO, HTTP transport.

How do I install Email Inbox API + Sending by Sendmux?+

Use the generated config in Install. This server runs with uvx sendmux-mcp; add any required environment variables before starting your client.

How do I add Email Inbox API + Sending by Sendmux to Claude Desktop?+

Choose the Claude Desktop tab in Install, copy the config, and add it to Claude Desktop's MCP server settings. Endpoint: https://mcp.sendmux.ai/mcp.

How do I add Email Inbox API + Sending by Sendmux to Claude Code?+

Choose the Claude Code tab in Install, copy the config, and add it to Claude Code's MCP server settings. Endpoint: https://mcp.sendmux.ai/mcp.

How do I use Email Inbox API + Sending by Sendmux with Codex?+

Choose the Codex tab in Install, copy the config, and add it to Codex's MCP server settings. Endpoint: https://mcp.sendmux.ai/mcp.

How do I add Email Inbox API + Sending by Sendmux to Cursor or VS Code?+

Choose the Cursor or VS Code tab in Install, copy the config, and add it to Cursor or VS Code's MCP server settings. Endpoint: https://mcp.sendmux.ai/mcp.

What endpoint and transport does Email Inbox API + Sending by Sendmux use?+

Email Inbox API + Sending by Sendmux uses STDIO, HTTP transport. Endpoint: https://mcp.sendmux.ai/mcp.

What tools and resources does Email Inbox API + Sending by Sendmux expose?+

Email Inbox API + Sending by Sendmux inventory is listed when the MCP endpoint exposes tools, resources, or prompts. Some servers require auth first.

Does Email Inbox API + Sending by Sendmux require authentication?+

Email Inbox API + Sending by Sendmux is marked with Auth required by registry metadata auth. You may need provider login, an API key, a bearer token, or a session header.

Related MCPs

onsenseAndroid phone camera, sensors & files for any MCP client — local, no cloud, no ADB.BowmarkDo things on live websites: prices, availability, quotes, bookings, anything behind a form or login.nableSee where your cloud and AI bills go, and spend less. Local-first, in your terminal or editor.HPSILab Quant FinanceQuant finance tools: stock analysis, options IV, Monte Carlo, AI prediction, risk scan, backtests.DataCharterLocal-first, contract-governed data explorer with read-only, PII-masked query tools for AI agents.InferraAuditable rule-based decisions with RAG explanations: a Rete engine decides, an LLM explains why.

Profile notes

  • Package: Pypi sendmux-mcp v1.5.0
  • Environment variable: SENDMUX_MCP_SURFACES (required)
  • Environment variable: SENDMUX_MAILBOX_API_KEY (required; secret)
  • Environment variable: SENDMUX_MANAGEMENT_API_KEY (required; secret)
  • Environment variable: SENDMUX_SENDING_API_KEY (secret)
  • The upstream registry signals required auth or secrets.

Packages

PackageRegistryVersionInputs
sendmux-mcp

stdio

pypi1.5.0

Env: SENDMUX_MCP_SURFACES required

Env: SENDMUX_MAILBOX_API_KEY required secret

Env: SENDMUX_MANAGEMENT_API_KEY required secret

Env: SENDMUX_SENDING_API_KEY secret

Details

Version
1.5.0
Auth
Auth required by registry metadata
Repository
https://github.com/Sendmux/sendmux-sdk
Website
https://sendmux.ai/docs/guides/mcp
Updated
Jul 22, 2026