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Send a one-off fax from inside ChatGPT or Claude. Pay-per-use, $2-$4.50 per delivered fax.
npx @getmcp/cli add app.promptfax/promptfaxRequires Node.js 18+. Community-contributed server. Review source before installing.
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"app.promptfax/promptfax": {
"url": "https://promptfax.app/mcp",
"transport": "streamable-http"
}
}
}