Email Inbox API + Sending by Sendmux

Email Inbox API + Sending by Sendmux is a publisher-listed MCP server for research and information discovery. Its registry entry lists local npm, local pypi, streamable-http distribution and version 2.2.0.

Resource type
MCP server
Publisher / namespace
io.github.Sendmux
Registry name
io.github.Sendmux/sendmux-mcp
Publisher description
AI email inbox and sending tools with attachments, search, live events, and webhooks.
Source-listed version
2.2.0
Registry status
active
Registry updated
2026-10-02T04:31:42.633901Z
Distribution / transport
local npm, local pypi, streamable-http
Published remote endpoints
https://mcp.sendmux.ai/mcp
Published packages
npm / sendmux-mcp / 1.0.0; pypi / sendmux-mcp / 2.2.0
Access / cost
Check provider
Required configuration names
SENDMUX_MAILBOX_API_KEY, SENDMUX_MANAGEMENT_API_KEY, SENDMUX_MCP_SURFACES
Access requirements
Authentication, service fees and compatible client support are determined by the publisher and selected transport.

Review the connection before using it

Consider this server when connecting a compatible AI client to research and information discovery. Read the publisher’s current documentation for the exact tools and permissions.

  1. Open the publisher or source repository and compare its current documentation with the dated registry record.
  2. Check that your AI client supports the listed transport and review the tools, account requirements, fees and permissions.
  3. Follow the publisher’s setup instructions with the access needed for your task. This directory does not connect your account or run the server.

Source repository: Open repository.

Sources & review

Public publisher metadata was checked in the official MCP Registry. This directory does not install, authenticate, execute or security-audit the service. Registry publication is not an endorsement by FounderOmni.

Source check: 2026-10-21. View checked source.

Catalog source: Source index. Resource descriptions and access conditions are source-reported. The original materials remain with their respective publishers.