Official MCP RegistryHosted serverpromptfax.appv0.1.0

PromptFax

Send a one-off fax from inside ChatGPT or Claude. Pay-per-use, $2-$4.50 per delivered fax.

Connect to Claude Code

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claude mcp add --transport http promptfax https://promptfax.app/mcp

Vendor-hosted remote server: nothing to install locally. If it uses OAuth, Claude opens the vendor login on first use.

Endpoints

Published in the official MCP registry as “app.promptfax/promptfax”. Verified through the vendor namespace.