fmsg MCP Server

io.github.markmnl/fmsg-mcp

Repository Registry

What is the fmsg MCP server?

Federated messaging with your fmsg hosting provider. Connect with OAuth or an API key.

How to install fmsg

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

FMSG_API_URL
required
Base URL of your hosting provider's or self-hosted fmsg Web API
FMSG_API_KEY
required
secret
fmsg API key (fmsgk_...) for the address to send as
FMSG_DEFAULT_DOMAIN
Optional: lets short names resolve to @name@<domain>
FMSG_MCP_DOWNLOAD_DIR
Optional local folder enabling streamed attachment saves over stdio
Authorization
required
secret
Your fmsg API key for the selected MCP endpoint

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

{
  "mcpServers": {
    "fmsg-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@markmnl/fmsg-mcp"
      ],
      "env": {
        "FMSG_API_URL": "<YOUR_FMSG_API_URL>",
        "FMSG_API_KEY": "<YOUR_FMSG_API_KEY>",
        "FMSG_DEFAULT_DOMAIN": "<YOUR_FMSG_DEFAULT_DOMAIN>",
        "FMSG_MCP_DOWNLOAD_DIR": "<YOUR_FMSG_MCP_DOWNLOAD_DIR>",
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

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