For developers

A fax API that returns data, not just PDFs

Send faxes with a single API call, receive inbound documents by webhook, and — with Smart Fax — get structured fields back instead of a PDF to parse. Wire fax into your EHR, CRM, or back office without touching a machine.

Send by API

POST a document and destination and Faxday handles conversion, delivery, retries, and status callbacks.

Inbound webhooks

Receive a webhook the moment a fax arrives, with the document and metadata, so your system reacts in real time.

Smart Fax extraction

Return structured fields from inbound forms — matched to the original request — instead of a PDF your code has to OCR and parse.

Delivery status callbacks

Every state change is pushed to your endpoint: queued, sending, delivered, failed with reason, and retry attempts.

HIPAA-ready

Build healthcare integrations on a platform that signs a BAA and logs every fax event for audit.

Clean, predictable payloads

Consistent JSON, signed webhooks, and idempotent handling so your integration is reliable at volume.

What you can build with a fax API

Automate outbound documents — invoices, orders, prescriptions, signed forms — straight from your application. Capture inbound faxes into your system of record automatically. Trigger workflows the moment a document arrives, and close the loop with structured data extraction so a faxed form updates a record without a human re-typing it.

Why Faxday for developers

Most fax APIs stop at moving a PDF from A to B. Faxday adds the layer teams actually want: signed webhooks, real delivery classification with automatic retries, and Smart Fax so an inbound document comes back as data your code can use. HIPAA-ready by default means you can ship healthcare workflows without a separate compliance project.

Frequently asked questions

Does Faxday have a fax API?

Yes. Faxday provides an API to send faxes and webhooks to receive inbound faxes and delivery status, with Smart Fax available to return structured data from inbound documents.

Can the API return structured data instead of a PDF?

Yes. Smart Fax reads inbound forms, matches them to the originating request where applicable, extracts the fields, and returns them so you do not have to OCR and parse the PDF yourself.

Is the API HIPAA compliant?

Yes. The platform signs a BAA and logs every fax event, so API-driven healthcare integrations are covered.

How do I get delivery confirmation via the API?

Faxday pushes status callbacks to your webhook endpoint for each state change — queued, sending, delivered, or failed with the reason — including automatic retry attempts.

Build fax into your product

Send, receive, and extract data by API — HIPAA-ready out of the box.