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mcp/harbor
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prontofax MCP

v1.0.0 changelog · 1

com.prontofax/prontofax

Verified US government fax numbers and send a fax from the chat. No account, $2.99 on delivery.

transport:streamable-http tools:2
Website

Target client

run in your project directory 

claude mcp add --transport http prontofax https://mcp.prontofax.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

lookup_fax_number Read-only

lookup fax number

send_fax Mutating

send fax

All 2 tools, one page each

2 resources you attach as context

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.