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

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is Email Inbox API + Sending by Sendmux official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

This listing scores 55 (Fair). The formula is published on the methodology page.

Email Inbox API + Sending by Sendmux MCP Server | MCPpedia

Name: Email Inbox API + Sending by Sendmux MCP Server
Author: sendmux

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

RegistryRemotesendmux

55Fair

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "sendmux-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "sendmux-mcp@1.0.0"
      ]
    }
  }
}

77Good

MCP server for Firecrawl — web search, scraping, and biomedical/arXiv paper search.

RegistryRemotefirecrawl7.6K stars

Name	Required	Notes
SENDMUX_MCP_SURFACES	Yes	Tool surfaces to run locally.
SENDMUX_MAILBOX_API_KEY	Yes	Mailbox API key for Mailbox API and Sending API tools. Secret.
SENDMUX_MANAGEMENT_API_KEY	Yes	Root API key for Management API tools. Secret.
SENDMUX_SENDING_API_KEY	No	Optional send-capable smx_mbx_ key or owner-approved smx_agent_ token for Sending API tools when it differs from the Mailbox API key. Secret.