--- title: Fax API—Secure FoIP Faxing with Telnyx's Private IP Network canonical: https://telnyx.com/products/fax-api --- # Fax API—Secure FoIP Faxing with Telnyx's Private IP Network # Fax API Send, receive and manage fax via API over a private global IP network for unmatched flexibility, security and reliability. [Try for free](https://telnyx.com/sign-up) Questions? [Ask our experts](https://telnyx.com/contact-us). **ABOUT** ## More ways to fax Fax still holds a place of importance in a rapidly changing world, especially in compliant spaces like healthcare, finance and legal. Our Fax API and global SIP trunking infrastructure enable organizations to work with fax-centric systems—without the need for traditional fax machines or infrastructure. **FEATURES** ## Fax features for total control Send faxes over a private IP network, with powerful APIs for unmatched configurability. * ### Enhanced security [Safeguard your data](https://telnyx.com/resources/is-fax-more-secure-than-email) with encryption of signaling and media, and transmission over our private network. * ### Fax to email Specify an email address to automatically forward inbound faxes, and wave goodbye to your antiquated fax machine. * ### Quality routing Access premium outbound routing with direct connections to Tier-1 faxing partners across our network. * ### Set your resolution With our Fax API, you can choose between normal, high or very high quality resolution for your faxes. * ### Protocol choice Deliver faxes via T.38 or G.711 pass-through and control T.38 re-INVITE initiator for deep configurability. * ### High reliability Ensure your faxes are delivered thanks to automatic error correcting and our multi-cloud network architecture. ## BENEFITS ## Secure your communications Send and receive secure faxes wherever you are on our global private IP network. 10 ## Points of Presence (PoPs) in our global private network ## Eliminate errors Our advanced error correction features ensure your faxes get delivered with confidence. T.38 ## Error correction enabled by default HOW IT WORKS [Talk to an expert](https://telnyx.com/contact-us) ### Provision phone numbers Find or port fax-capable numbers in 90+ countries with powerful number search, purchase and porting tools. ### Configure fax applications Control everything about your faxes, from webhook URLs to media anchoring to T.38 error correction. ### Send and receive faxes via API Simple REST API commands and webhooks give you in-depth control and visibility over every page. ### Launch Scale compliant, reliable fax applications across the globe without worrying about hardware. Step 1/4 **RESOURCES** ## Start building Our code is your code. cURLNode ``` curl -X POST \ --header "Content-Type: application/json" \ --header "Accept: application/json" \ --header "Authorization: Bearer YOUR_API_KEY" \ --data '{"connection_id":"234423","from":"+13125790015"}' \ https://api.telnyx.com/v2/faxes ``` * ### In-depth API reference Explore API specifications, webhook payloads and more to build time-saving fax handling applications. [Explore docs](https://developers.telnyx.com/docs/v2/programmable%5Ffax/intro/) * ### Programmable fax to email Learn how to send and receive faxes with your email address, powered by the Telnyx Fax API. [Watch webinar](https://telnyx.com/resources/fax-email-webinar-python-recap) * ### Send a fax via API Send your first API-enabled fax in less than ten minutes, with step-by-step setup instructions. [Watch video](https://telnyx.com/resources/video-send-fax-via-api) **PRICING** ## See our Fax API pricing Customers typically save 30% by switching to Telnyx, with lower list pricing and automatic volume discounts. Starting at $0.007 Per page [See pricing](https://telnyx.com/pricing/fax) SOLUTIONS ## Your communications powered by our API * [![Gamestop stock on Robinhood app](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Financial_services-0d7a55d6.jpg?width=2240&format=webp)Financial servicesWork with sensitive data in a more effective, compliant manner.Learn more](https://telnyx.com/solutions/financial-services) * [![Healthcare Overview](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Industry_Healthcare_Solutions-Overview-4951be50.png?width=1120&format=webp)Healthcare Work with protected health information (PHI) with an easier path to compliance.Learn more](https://telnyx.com/solutions/healthcare) * [![Two engineers programming as team](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Professional_services-75e54bb1.jpg?width=2240&format=webp)Professional servicesTransmit sensitive or confidential information without storing it on email or messaging servers.Learn more](https://telnyx.com/use-cases/managed-service-providers) **CUSTOMER STORIES** Matt Herrera Founder & CEO, Documo I wanted a partner that was API-first and actively investing in continuous product improvement, and that’s what we have in Telnyx. [Read customer story](https://telnyx.com/customer-stories/documo) ## Sign up and start building [Sign up](https://telnyx.com/sign-up)[Talk to an expert](https://telnyx.com/contact-us) ## FAQ ### Can you send fax over a SIP trunk? Yes—you can send, receive and manage faxes over your SIP trunks with Telnyx. This allows you to reliably send, receive and manage secure documents without the need for an antiquated fax machine. And, what’s more, our Programmable Fax API allows you to send and manage faxes programmatically. ### What is fax over IP? ### Why is fax still used? ### How can I send faxes via API? **Resources, Docs, Support** ## Fax Api hub * ### Programmable Fax Get Started | Telnyx Telnyx's Programmable Fax service makes it easy to send and receive faxes from your computer or mobile device. With our service, you can easily connect to your fax number from anywhere in the world. [Read more](https://developers.telnyx.com/docs/programmable-fax/get-started) * ### Send a Fax via API | Telnyx Telnyx offers powerful faxing capabilities through our programmable fax API. In this tutorial, we'll show you how to send a fax using our API. With just a few simple steps, you can have your faxes sent quickly and easily. [Read more](https://developers.telnyx.com/docs/programmable-fax/send-a-fax-api) * ### Receive a Fax via API | Telnyx Telnyx's Programmable Fax API makes it easy to receive faxes from anywhere in the world. With just a few lines of code, you can start receiving faxes in your own applications and workflows. [Read more](https://developers.telnyx.com/docs/programmable-fax/receive-a-fax-api) * ### Fax APIs | Telnyx Send and receive faxes in the cloud using the Programmable Fax API. [Read more](https://developers.telnyx.com/api/programmable-fax) * ### Send a fax API | Telnyx Send a fax. Files have size limits and page count limit validations. If a file is bigger than 50MB or has more than 350 pages it will fail with `file_size_limit_exceeded` and `page_count_limit_exceeded` respectively. [Read more](https://developers.telnyx.com/api/programmable-fax/send-fax) * ### View a list of faxes API | Telnyx [Read more](https://developers.telnyx.com/api/programmable-fax/list-faxes) * ### Creates a Fax Application API | Telnyx Creates a new Fax Application based on the parameters sent in the request. The application name and webhook URL are required. Once created, you can assign phone numbers to your application using the `/phone_numbers` endpoint. [Read more](https://developers.telnyx.com/api/programmable-fax/create-fax-application) * ### Retrieve a Fax Application API | Telnyx Return the details of an existing Fax Application inside the 'data' attribute of the response. [Read more](https://developers.telnyx.com/api/programmable-fax/get-fax-application) * ### Benefits of Fax APIs—what are they and why do you need them? The benefits of Fax APIs means fax is as popular as ever. Read on to see how they can help simplify workflows and reduce errors. [Read more](https://telnyx.com/resources/fax-apis-the-basics-and-benefits) * ### Programmable Fax API Secure Faxing Released Our new Programmable Fax API lets you send and manage fax programmatically, leveraging our private IP network and T.38 support. [Read more](https://telnyx.com/resources/programmable-fax-api-product-launch) * ### How to Debug Communications Webhooks - Easy-To-Use Tools Use our simple tools to debug your Fax, Voice, and Messaging communications by analyzing webhooks. Watch a live demo today! [Read more](https://telnyx.com/resources/debug-fax-texml-portal) * ### HIPAA-Compliance, Fax, and Real-Time Transmission HIPAA compliant faxes sent over T.38 SIP trunks have encrypted signaling and media, with no data stored on either end. [Read more](https://telnyx.com/resources/fax-hipaa-compliance-real-time) * ### Programmable fax isn’t going anywhere While a common perception may be that fax is an antiquated technology that is seldom used, it couldn’t be farther from the truth. [Read more](https://telnyx.com/resources/fax-is-here-to-stay) * ### Fax vs email: Which is more secure? Is fax more secure than email? Fax isn’t without its security concerns. But, when compared to email, here’s why it has a leg up in regards to security. [Read more](https://telnyx.com/resources/is-fax-more-secure-than-email) * ### There’s a reason healthcare providers still use fax From added security to convenience, there’s reason why hospitals and healthcare providers still use fax machines to transmit important information. [Read more](https://telnyx.com/resources/why-hospitals-use-fax) * ### Programmable fax - switch from Twilio to Telnyx Learn why Telnyx is the perfect Programmable Fax partner to switch to from Twilio, who is disabling fax. [Read more](https://telnyx.com/resources/migrate-fax-from-twilio-to-telnyx) * ### Telnyx Programmable Fax API Video Our video walk-through shows you everything you need to receive an incoming fax as a PDF using the Telnyx Programmable Fax API. [Read more](https://telnyx.com/resources/video-receive-fax-via-api) * ### Telnyx Programmable Fax API Video Guide Our video walk-through shows you everything you need to send a fax in one API command using the Telnyx Programmable Fax API. [Read more](https://telnyx.com/resources/video-send-fax-via-api) * ### The best Bandwidth alternative - Telnyx Looking for a Bandwidth alternative? Compare Telnyx vs. Bandwidth on reliability, pricing, and support. See why Telnyx is the top choice. [Read more](https://telnyx.com/the-better-bandwidth-alternative) * ### #1 Plivo Alternative - Telnyx vs Plivo The top Plivo alternative. Find out why businesses are choosing Telnyx as the better Plivo alternative for CPaaS. [Read more](https://telnyx.com/the-better-plivo-alternative) * ### Configuring Programmable Fax Applications | Telnyx Help Center Learn how to configure your settings in order to send and receive faxes via API. [Read more](https://support.telnyx.com/en/articles/4394516-configuring-programmable-fax-applications) * ### Fax API - Error List | Telnyx Help Center In this article find explanations for both outbound and inbound errors you might experience with Programmable Fax. [Read more](https://support.telnyx.com/en/articles/4967498-fax-api-error-list) * ### Telnyx Fax Configuration & Errors | Telnyx Help Center How to setup and configure Telnyx FAX and its applications. Learn to how to avoid FAX errors. [Read more](https://support.telnyx.com/en/collections/3968239-telnyx-fax-configuration-errors) * ### Fax service with Telnyx (via T.38 or G711) | Telnyx Help Center Learn more about setting up fax service with Telnyx using either T.38 or g711. [Read more](https://support.telnyx.com/en/articles/1130672-fax-service-with-telnyx-via-t-38-or-g711) * ### Telnyx Tech Specs | Telnyx Help Center Here you will find out key tech specs at Telnyx and what they mean for our service. [Read more](https://support.telnyx.com/en/articles/1130599-telnyx-tech-specs) * ### Getting Started | Telnyx Help Center Get Started with a Mission Control Account. Start building on Telnyx today. [Read more](https://support.telnyx.com/en/collections/1512966-getting-started) * ### Cloud Storage Use Cases \[Cloud storage backup\] Protect your critical data with our cloud storage backup. Find out how Telnyx can keep your information safe and accessible. [Read more](https://telnyx.com/use-cases/backup-and-restore) * ### Voice AI for healthcare | Telnyx Telnyx healthcare AI offers flexible, HIPAA-compliant voice and messaging AI features. Get connected today. [Read more](https://telnyx.com/solutions/healthcare) [Start building](https://telnyx.com/sign-up)