The Developer-First Fax API for Healthcare

RESTful Fax API
for Devs

The fax API built by developers, for developers. Get your API key & send a fax in minutes. Python, Node, and .NET SDKs available.

SOC 2 Type II

HIPAA-compliant

Signed BAA

99.99% SLA

Talk to an API expert

Reach out to learn more about our API.

Fax to JSON with AI-powered OCR

Stop building OCR pipelines. Our intelligent API processes incoming medical faxes and returns structured, actionable JSON payloads via webhooks.

Inbound Fax

Example Webhook Payload (application/json)

{
  "id": "fax_01H8XFK",
  "event": "fax.delivered",
  "status": "delivered",
  "pages": 3,
  "received_at": "2026-02-26T14:22:30Z",
  "ocr": {
    "document_type": "referral",
    "extracted_fields": {
      "patient_name": "John Doe",
      "dob": "1980-05-15",
      "mrn": "MRN-99382"
    },
    "confidence": 0.98
  }
}

Scalable Cloud Gateway

Built on a modern infrastructure to handle high volume faxing with a 99.9% uptime SLA.

Python & Node.js SDKs

Drop-in libraries for your favorite languages. Easy .NET & PHP integration also supported.

Secure TLS 1.2 + 1.3 Encryption

End-to-end encryption ensuring your healthcare documents meet HIPAA requirements.

Real-Time Webhooks

Get instant notifications for delivery status, inbound faxes, and OCR completion.

T.38 & SIP Support

Under-the-hood carrier grade routing ensures highest possible delivery success rates.

Clean Documentation

Extensive API references, quickstarts, and copy-paste examples to get you shipping faster.

By Developers, For Developers

Tired of tier-1 support scripts? When you build with our API, you get direct access to engineering-led technical support. If you get stuck, you talk to the people who wrote the code.

Developer to Developer

Talk to the people who wrote the code

Compliance Assistance

BAA and HIPAA audit support

POST /v1/faxes

curl https://api.medsender.com/v1/faxes \
  -H "Authorization: Bearer sk_live_your_api_key" \
  -F "to=+12345678900" \
  -F "file=@referral.pdf" \
  -F "webhook_url=https://your-app.com/webhooks/fax-events"

{
  "id": "fax_01J8XFKA9ZQ7",
  "object": "fax",
  "status": "queued",
  "to": "+12345678900",
  "pages": 3,
  "created_at": "2026-02-26T15:04:21Z"
}

Ready to build with a modern Fax API?

Join the developers building reliable healthcare applications.

RESTful Fax API for Devs