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promptfax-mcp

https://promptfax.app/mcp

answers a handshake

Registry name: app.promptfax/promptfax
Reports itself as: promptfax-mcp 0.1.0
Protocol version: 2025-06-18
Transport: streamable-http
HTTP status: 200
Latency: 166 ms
Tools: 8
Checked: 2026-09-06T02:51:20Z

Tools it reports

start_session
attach_document
get_quote
checkout
send_fax
get_status
retry_failed_fax
cancel

Check it yourself

curl -s -X POST https://promptfax.app/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"you","version":"0"}}}'