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Programmable Fax API


Outbound fax automation built for developers and enterprise volume

With Fax API from Innoport, you can start sending faxes from your applications within minutes. Integrate automated faxing into your web forms, custom applications, and web services, or build your own programmable fax gateway. Designed to accommodate demanding fax volume and developer needs, our API helps you achieve fax automation goals without additional hardware, software, or expensive phone lines. It is a robust, highly scalable, and secure online fax integration solution.


What do I need to do to start faxing in minutes?

Getting started with Innoport’s Fax API is straightforward. Sign up for one of our service plans and follow a simple API-driven workflow to send outbound faxes from any application that can make HTTPS calls:


  • 1. Make a secure HTTPS request to obtain a fax authorization in real time.
  • 2. Upload your fax document(s) securely using HTTPS request, or submit your document(s) through email.
  • 3. Check the delivery status of your sent fax using a follow-up HTTPS request.

This approach gives your application full visibility into fax delivery outcomes and allows you to implement custom retry logic, exception handling, and reporting that fits your business requirements.


Innoport Programmable Fax API.

Future-Proof Your Fax Sending Infrastructure

Today’s businesses demand faxing that’s fast, compliant, and integrated with digital workflows. Innoport’s cloud-based Fax API supports outbound fax delivery without on-premise fax servers.


  • 100% cloud-based: Eliminate fax machines and on-premise fax servers.
  • High volume capable: Designed for demanding outbound fax throughput.
  • Retry control: Program fax retry attempts to fit your business needs.
  • Highly secure: Data exchanged using HTTPS.
  • Global reach: Send to international destinations (rates apply per outbound schedule).
  • ERP / EHR / CRM integration: Add outbound fax delivery to enterprise systems.
  • HIPAA suitability: Learn more about HIPAA Compliant Fax.

Uncompromising Security for Fax Sending Workflows

  • HTTPS for API calls and document submission
  • Secure delivery options available across the platform
  • Administrative control and account-level access controls
  • Designed to support regulated industries and sensitive documents

Rapid Deployment, Seamless Integration

  • Start sending faxes from apps quickly with a straightforward API flow
  • Build automation into web forms, services, and line-of-business systems
  • Use status checks to create dependable retry and exception handling
  • Scale up or down based on volume needs

Common Use Cases for Outbound Fax API

  • Healthcare document delivery (referrals, authorizations, summaries)
  • Legal and compliance-driven document transmission
  • Finance and insurance outbound communications
  • ERP and CRM generated documents (notices, forms, invoices)
  • Replacing manual fax sending with automated workflows

Why Choose Our Fax API?

  • Streamlined faxing process: Add outbound fax capability to your applications.
  • Complete control: Build the sending and retry logic that fits your workflow.
  • Flexibility: Program in any language with internet support.
  • Economical: No need for extra hardware, software, or phone lines.
  • Massive throughput: Built to support everything from small workloads to high-volume fax transactions.
  • Proven service: Built on reliable cloud communications infrastructure developed and refined over a 25-year span.
  • Superior per minute billing: Per-minute fax billing designed to be more cost-effective than rigid per-page pricing models. Learn More.
Why Leading Businesses Trust Us?

  • Round-the-clock reliability.
  • Knowledgeable, U.S. based, in-house customer support.
  • Cost control options - scale up or down based on business needs.
  • No long-term contracts. Cancel Anytime.


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