fmsg-mcp
Use a fmsg address for a fmsg host. Tools for inbox, threads, send and reply, reactions, attachments, delivery status and wait-for-message over the host's WebSocket so agents can hold conversations with people or other agents. Runs over stdio locally or as a Streamable HTTP endpoint where each user authenticates with their own fmsg API key.
Install
npx -y @markmnl/fmsg-mcp
Paste the configuration above into your MCP client config (claude_desktop_config.json for Claude Desktop) and restart the client.
{
"mcpServers": {
"fmsg-mcp": {
"command": "npx",
"args": [
"-y",
"@markmnl/fmsg-mcp"
],
"env": {
"FMSG_API_KEY": "<FMSG_API_KEY>",
"FMSG_API_URL": "<FMSG_API_URL>",
"FMSG_MCP_HOST": "<FMSG_MCP_HOST>",
"FMSG_MCP_PORT": "<FMSG_MCP_PORT>",
"FMSG_DIRECTORY": "<FMSG_DIRECTORY>",
"FMSG_DEFAULT_DOMAIN": "<FMSG_DEFAULT_DOMAIN>",
"FMSG_MCP_DOWNLOAD_DIR": "<FMSG_MCP_DOWNLOAD_DIR>",
"FMSG_MCP_ALLOWED_HOSTS": "<FMSG_MCP_ALLOWED_HOSTS>"
}
}
}
}Paste the configuration above into your MCP client config (claude_desktop_config.json for Claude Desktop) and restart the client.
Sources: public MCP Server directories. This is an independent third-party directory with no affiliation to or endorsement from the maintainers of the listed servers.
