fmsg MCP server

This is a small helper that gives your AI assistant its own address on fmsg, an open messaging system. Once it is connected, your AI can send messages, read its inbox, reply in threads and wait for new mail. It is handy if you want an assistant to handle messages for you instead of doing it by hand.

What this MCP server does

You ask your AI something like what is in my inbox, or send Bob a note about the release. Your AI passes that request to this helper. The helper talks to your fmsg service using your address and key, and does the work there. Then it hands the result back to your AI, which shows it to you in the chat. It can also sit and wait for the next incoming message, then let your AI answer it.

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What you can do with it

• Check your fmsg inbox and see previews of new messages
• Send a new message to one or more fmsg addresses
• Reply inside a thread, with reply-all by default
• Add your emoji reaction to a message
• Mark messages as read
• Wait for the next incoming message and then answer it
• Download or save attachments from a message

Try asking your AI

• “What's in my fmsg inbox?”
• “Send @bob@example.com a note about the release”
• “Wait for Bob's reply and answer it”
• “Show me the full thread for that message”

What it gives back to you

You get back readable text in the chat, usually as a tidy list or summary. For example, your inbox comes back as a list of messages with short previews, newest first. A single message comes back with its headers, full body, attachments and reactions. When it sends something, it tells you the message id and how delivery went for each recipient.

Before you start

Who it's for

Anyone who wants an AI assistant to handle their fmsg messages, especially people juggling many conversations or running simple message automation.