PromptFax for Claude Desktop
app.promptfax/promptfax
Send a one-off fax from inside ChatGPT or Claude. Pay-per-use, $2-$4.50 per delivered fax.
client:Claude Desktop
transport:streamable-http
tools:8
Install PromptFax in Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"promptfax": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://promptfax.app/mcp"
]
}
}
}Claude Desktop has no remote transport in its config file, so this bridges through mcp-remote. Restart the app after saving. Claude Desktop docs