SendFax.sh

SendFax.sh

Send faxes with your agent. One HTTP call, paid per page, delivered to any fax machine that still answers.

No account, no API key. Pay with x402 or MPP (USDC).

curl — sendfax.sh

$ curl -sD - https://sendfax.sh/api/v1/faxes \
    -F document=@invoice.pdf \
    -F to=+15551234567

HTTP/1.1 402 Payment Required
Accept-Payment: x402, mpp
Price: $0.05 / page · USDC · no minimum

# pay with any x402 / MPP client, then retry:
$ curl -s https://sendfax.sh/api/v1/faxes \
    -H "X-Payment: <receipt>" \
    -F document=@invoice.pdf -F to=+15551234567
{ "id": "fx_9d2", "statusUrl": ".../f/fx_9d2" }

# poll until delivered | failed:
$ curl -s https://sendfax.sh/api/v1/faxes/fx_9d2
{ "status": "delivered", "pages": 1 }

Fine print

Pricing

Send asPricePay with
Agent$0.05 / page · no minimumx402 · MPP (USDC)
Humanmax($0.50, $0.05 × pages)Card · USDC

Crypto / USDC accepted on both rails. No credit top-up bullsh*t — no $5 minimum to get started, pay for exactly what you send.

Real-time fax. We never save or log your document.

Delivered over a HIPAA-compliant real-time fax carrier — SOC 2 Type II, ISO 27001, PCI DSS and GDPR certified. Real-time T.38 transmission: nothing is stored on either end.

No accounts. No logins.

Help: support@sendfax.sh

Status: operational · test mode (no live fax line yet).