eFax Developer™

The Fax API that Powers Your High-Volume Faxing

Integrate Application Faxing Simply and Cost-Effectively Into Your Business's CRM or ERP systems.

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eFax Corporate Security

Move your In-house Fax Processes to the Cloud

Designed for businesses who require integrated fax with high-volume faxing needs, eFax Developer is a secure, XML-based fax API that complements your eFax Corporate® cloud fax service. eFax Developer provides all of the benefits of having your own production-class fax server — but without the hassle, no hardware or expenses of maintaining an on-site fax infrastructure.

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The eFax Developer online fax API provides:

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Integrate Fax Processes — Fax by email right from your CRM, ERP or Electronic Healthcare Systems(EHR)

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Reduce IT Costs — No Fax Maintenance, No Hardware or Software Needed for our fax integration

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HIPAA, PCI, GLBA & SOX Compliant - We Sign BAA's

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Increased fax security — with optional TLS 1.2 encryption for fax transmissions.

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Optimized workflows — XML wrapper for simplified workflows such as barcode reading.

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Easy administrative access and comprehensive fax usage reporting

Intelligent Fax API Integration

The eFax Developer online fax app offers true fax integration.

When you deploy our fax integration solution, it’s like having your own production-class fax server in-house — but without the equipment, hassle or expense.

Enhance Your Business’s Fax Compliance

As part of the j2 Global® family of cloud service experts, eFax Developer Fax API takes advantage of a worldwide, redundant fax and transport infrastructure — and 20 years of experience delivering highly secure solutions that help businesses meet compliance requirements for security, privacy, and auditability set by regulators. The eFax Developer fax API platform integrates easily and can help your organization stay on the right side of federal regulations such as HIPAA, SOX and GLBA.

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eFax Developer Datasheet

eFax Developer is like having your own production-class fax server without the hassle, equipment, or expense!

Get the Datasheet

How eFax Developer Fax API Simplifies Your High-Volume Production Faxing

Receiving Faxes with eFax Developer

Receiving a Fax

Pages sent to your dedicated, toll-free fax number are passed securely―via Web post―to your application as PDF or TIFF, along with associated “wrapper” information (date/time, number of pages, caller ID, etc.). Your faxes are also available at our secure online-storage site. Plus, bar codes on faxes can be scanned, and their values can be provided with other wrapper data for even more automation.

Sending Faxes with eFax Developer

Sending a Fax

Your faxes are sent by an SSL-encrypted HTTPS Web post and are delivered immediately. Delivery-status information is then passed back to your application (as a Web post or email). The quick and responsive delivery system can also obtain the status of any fax at any time.

Resources & Knowledge Center to Support Your Business

Frequently Asked Questions


Find answers to our most common questions about online faxing.

Video Tutorials


Watch these videos to discover what cloud faxing can do for your business.

Events & News


Join the eFax Corporate Team at our next Trade Show, Webinar & Special Events

Recorded Webinars


View our informative webinars on internet faxing, fax security and other important topics.

White Papers


Learn more about eFax Corporate and our fax technology.

Customer Case Studies


Learn how our customers are improving their business processes with eFax Corporate.

Get Your Custom Quote

Speak with a representative now: (844) 344-7099

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eFax is the world’s #1 online fax service. Millions of customers rely on eFax to send and receive faxes from their computer, smartphone and email. See how we've made faxing simple for over 20 years. Start Faxing »

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