How do I install the sendmux mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

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Sendmux MCP Server

Email inbox API for AI agents with MCP tools for Mailbox, Management, and Sending APIs.

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What is the Sendmux MCP Server?

Email inbox API for AI agents with MCP tools for Mailbox, Management, and Sending APIs.

What the server does

Use send-capable smx_mbx_* keys or owner-approved Sending-resource smx_agent_* tokens for Sending clients. Use smx_mbx_* keys or scoped smx_agent_* tokens for Mailbox clients. Use root smx_root_* keys for Management clients. Agent tokens remain limited by server-side scopes; pre-claim self-registered agent tokens do not include email.send.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
crates.io	sendmux

How to install the Sendmux MCP Server

{
  "mcpServers": {
    "sendmux": {
      "command": "npx",
      "args": ["-y", "@sendmux/core"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Example prompts to try

“Use Sendmux MCP to CLI.”
“Use Sendmux MCP to TypeScript.”
“Use Sendmux MCP to MCP.”

Frequently asked questions

Email inbox API for AI agents with MCP tools for Mailbox, Management, and Sending APIs. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.