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Non-AI Communication — Other

Phaxio

Fax API for developers — send and receive faxes programmatically with simple code.

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phaxio.com
Verified API available Works with Integrately · Make · Zapier
What is it Fax API for developers — send and receive faxes programmatically with simple code.
Pricing Paid
Free tier No
Platform API
API Yes
Works with Integrately, Make, Zapier
Best for sending faxes from applications, receiving faxes programmatically
Domain registered 2011

Data updated Aug. 1, 2026

What does Phaxio do?

Phaxio is a straightforward API that lets you send and receive faxes programmatically. Instead of plugging in a phone line or buying a fax machine, you make HTTP requests to send documents as faxes. The API accepts files, URLs, or even raw HTML and converts them into fax transmissions. It handles the telephony side—dialing, busy signals, retries—so you don't have to. Think of it as faxing for the cloud era, built specifically for developers.

Phaxio's API is simple JSON over HTTPS. You get an API key and secret from the console, then send a fax with a few lines of code. The homepage shows working examples in cURL, PHP, Node, Ruby, Java, Python, and .NET. You can post a file or a URL and Phaxio will render it like a webkit browser before sending. For reliability, the system uses batching and collision avoidance to get around busy signals and telephony quirks. Pricing is per page starting at 7 cents—no monthly contracts, and you can cancel anytime. Volume discounts are available for higher usage.

This service is most useful for software developers who need to fax from inside their applications—think healthcare portals, legal document systems, or any business that still relies on fax as a communication channel. Instead of maintaining on-premises fax servers or using clunky third-party services, you get a clean API that does the job. IT teams can integrate it into existing workflows without much hassle. It's a pragmatic tool for a technology that refuses to die.

Non-AI Communication — Other
#api integration#cloud-fax#developer tools#fax-api#programmatic-fax#receive-fax#send-fax#telephony

Key features

What makes it stand out
01
Send faxes via a simple JSON API using files, URLs, or HTML
02
Receive faxes with built-in batching and collision avoidance
03
Pay-as-you-go pricing starting at 7¢ per page, no contracts
04
Client libraries in 7 languages: cURL, PHP, Node, Ruby, Java, Python, .NET
05
Battle-tested reliability with years of production use

Who is Phaxio for?

Who benefits most from this tool
sending faxes from applications
receiving faxes programmatically
integrating fax into automated workflows

Pricing

Phaxio

Custom
  • 0.07 us canada per page
  • 0.01 caller name per fax
  • 2 phone number monthly
  • 0.1 international per page
  • 0.05 volume discount 50000 us canada
  • 0.04 volume discount 100000 us canada
  • 0.08 volume discount 50000 international
  • 0.07 volume discount 100000 international
  • Send and receive faxes
  • US & Canada: 7¢ per page
  • International: 10¢ per page
  • Phone numbers: $2 per month
  • Caller name: 1¢ per fax received
  • Volume discounts available

Trust & presence

Search presence Top 100k site
Domain Domain registered 2011

Gallery

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Pricing page

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