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Fax² API

#15 of 26 in Fax APIs

Fax² API: A focused fax API with inbound and outbound workflows, document conversion, and a trial. Ranked #15 of 26 in Fax APIs by our editors (6.2/10); pricing: 30-day trial; best for API users seeking a trial and included monthly pages.

6.2/10Editor score
Visit Fax² API
Fax² API6.2 Visit Fax² API

At a glance

  • Editor score
    6.2 / 10
  • Pricing
    30-day trial
  • Best for
    API users seeking a trial and included monthly pages
  • Free plan
    No
  • Inbound faxing
    Yes
  • Facts checked
    20 Sep 2026
Fax² API screenshot

  • Where it wins

    • Supports programmatic sending and retrieval of received faxes
    • Converts uploaded documents and provides received faxes as PDFs
    • Uses OAuth2 client credentials with JSON responses over HTTPS

  • Where it doesn't

    • No free plan is listed
    • Webhook events are not documented
    • The listed platform is API rather than a browser-based workspace

Our verdict on Fax² API

Fax² API is designed for software applications that need to send and receive faxes programmatically. Its API supports outbound fax submission, retrieval of received faxes, PDF downloads, document upload and conversion, and outbound delivery-status reporting. This makes it a focused fit for developers integrating fax workflows into an existing application, particularly where both inbound and outbound handling matter. The service is provided by Fax2 Pty Ltd for Australian fax numbers.

The published plans include Fax2 trial, Starter, Saver, Power User, and Sender. The trial plan provides a free trial, while Starter, Saver, and Power User include bonus credit. Sender is a send-only option, so it is suited to outbound workflows rather than two-way fax processing. The category specifications show 400 included pages, inbound and outbound fax support, delivery tracking, and a REST API. Pricing is shown in Australian dollars including GST, with the service operating as a paid product rather than a free-plan offering.

From an integration perspective, Fax² API uses JSON responses over HTTPS and OAuth2 client-credentials authentication. Developers can submit outbound faxes, retrieve received documents, convert uploads, and query delivery status through programmatic workflows. The documentation describes a REST-like API, but webhook events are not documented, which may matter for applications that depend on push-based status updates. Choose Fax² API when a dedicated fax layer with two-way workflows and a trial aligns with your application. Consider another option if documented webhooks or a browser-first operating model is central to the requirement.

Fax² API pricing

Plans 30-day trial No free plan — trial or paid only. Prices re-checked Sep 2026.
See plans on fax2.com.au

All 5 Fax² API plans and prices →

Fax² API fact sheet

Free planNo
Paid fromNot verified
Inbound faxingYes
Outbound faxingYes
Delivery trackingYes
Webhook eventsNot verified
API protocolRest
Included pages400 pages
Free trial30 days
SupportDocs
Built forSolo, Small business, Mid-market (editorial estimate)
Pricing30-day trial (source)
Websitefax2.com.au
Facts checked20 Sep 2026

Alternatives to Fax² API

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Featured on iTechGuides

Featured on iTechGuides — Fax² API 6.2/10

Fax² API is listed in our Fax APIs directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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