Send a fax from an agent
Plenty of offices still take paperwork by fax. Emboss gives an agent one call that sends a PDF to a fax number in the United States, Canada or Mexico, and a receipt that says whether it arrived, so the agent can close the loop without a human at a fax machine.
Fax a filled form in the same run
An agent that just filled a form with Emboss can send it on the spot: pass the destination number and the PDF, get a job id back at once, and poll for delivery. The receipt carries the page count and a hash of the file that went out.
From Claude or any MCP client
Connect Emboss and the send_fax tool appears beside the form tools. The agent supplies the destination and the PDF; get_fax reports queued, working, delivered, failed or expired.
Without an account
Agents can fax through the pay-per-call API with no account, paying per transmitted page in USDC or by card. Card payments have a 50-cent minimum, and USDC pays the exact price. The payment challenge states the exact price for the document sent.
What happens when a fax fails
Busy lines and dead numbers happen. The receipt names the failure category and whether a retry is worth it. A fax billed to an account is not charged when it fails. A paid fax that fails is refunded automatically when paid by card, up to three a day, and on request when paid in USDC. The destination number is masked everywhere it is shown.
Getting started
Read the Send a fax guide for the four ways to send, or start from the API reference.