# Phaxio review (2026): is it worth paying for? > Pay-per-page fax API for developers, from 7 cents a page Checked Nov 12, 2026 ยท graded Nov 12, 2026 by ToolGPA. Phaxio is a fax API for sending and receiving faxes from code, with a web dashboard for managing faxes and numbers. There are no monthly fees: an account is funded in advance and charged per page, with lower rates at high monthly volumes. Documentation and client libraries cover several languages. - **Category:** Online Fax - **Made by:** Phaxio - **Website:** https://www.phaxio.com - **Runs on:** Web - **Who should skip it:** Not for you if you don't write code, because the main way in is the API. - **Facts last checked:** Nov 12, 2026 ## Pricing As of Nov 12, 2026, Phaxio is a paid product, starting at $10 minimum top-up, then 7 cents per page in the US and Canada. - **Pricing model:** Paid - **Free plan:** None. - **Free trial:** None listed. | Plan | Price | What you get | | --- | --- | --- | | Pay as you go | $10 one-time top-up, used as you go | No monthly fee. 7 cents a page in the US and Canada, 10 cents elsewhere; funds can recharge automatically. | Read from https://www.phaxio.com/pricing on Nov 12, 2026. Prices change, so confirm with Phaxio before buying. ## Ways to pay less - **Volume discounts above 50,000 pages a month** (Other savings): US and Canada pages drop to 5 cents at 50,000 a month and 4 cents at 100,000; international drops to 8 and then 7 cents. Source: https://www.phaxio.com/pricing ## Key features - **JSON fax API:** Send a fax with one call that takes a number and a file, or post a URL or a string of HTML to be rendered and sent. - **Batching and retries:** Batching and collision avoidance keep faxes from hitting a busy number, and retries for busy lines and other errors are configurable. - **Callbacks and metadata:** Failed callbacks are retried for three days, and each outgoing fax can carry metadata such as an order number or patient record number. - **Numbers for receiving:** Receive faxes on a US or Canadian number at $2 a month, or use the shared Phaxio number with a PhaxCode on the document. - **Dashboard:** A web console lists faxes, provisions numbers and lets you trigger a callback by hand. ## Good for - Developers who need fax inside an application - Low-volume senders who do not want a monthly plan - High-volume senders that qualify for volume rates ## Worth knowing - Pricing is per page only: 7 cents in the US and Canada, 10 cents international, and 1 cent per fax received for the caller name add-on. - Volume rates start at 50,000 pages a month: 5 cents, then 4 cents at 100,000. - The API allows one request per second per account unless Phaxio raises it. - Phaxio says it can be used for HIPAA workloads if its guidelines are followed, and it supports docx, pdf, tif, jpg, txt, html and png. ## ToolGPA grades **GPA: 1.8 out of 4**, graded Nov 12, 2026. Phaxio is a fax API that charges per page: 7 cents in the US and Canada, 10 cents elsewhere, topped up from $10. There's no monthly fee, but it is built for developers, the API allows one request a second unless Phaxio raises it, and there is no free tier or trial. - **Value for money: B.** 7 cents a page in the US and Canada with a $10 minimum top-up and no monthly fee. A receiving number is $2 a month. Light senders pay far less than a plan; volume rates start at 50,000 pages. - **Free plan and trial: F.** No free plan and no trial. You start by topping up $10. - **Features: C.** A JSON fax API with batching, retries, callbacks and metadata, plus numbers for receiving. It does that job fully, and it is a smaller job than a full fax service. - **Ease of use: D.** No store rating on record. You need to write code to send a fax, and a person with no developer won't get far. - **Platforms and integrations: B.** Web console plus the API, which is the product. Phaxio says it can serve HIPAA workloads if its guidelines are followed. No phone or desktop app. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Phaxio's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among online fax services - Phaxio's GPA of 1.8 is higher than 0 of the 20 other online fax services we grade, and level with 2. - It stands best on value for money (B, above 13 of 20) and worst on free plan and trial (F, above 0). The category's chart of price against score: https://toolgpa.com/charts/online-fax ## Keep it, or make your own? **Keep it.** To replace Phaxio you would be making fax numbers connected to the phone network. That is not a weekend's work, with an AI app builder or without one. That makes this kind of software worth paying for, not this one in particular: 18 of the 20 other online fax services grade higher. - You could not: Fax numbers connected to the phone network. - You could not: An API that other software can build on. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. **Tags:** Online fax, Public API ## Alternatives - [Notifyre](https://toolgpa.com/tools/notifyre): Pay-per-page online fax and business texting, with a fax API. [Compare](https://toolgpa.com/compare/notifyre-vs-phaxio) - [SRFax](https://toolgpa.com/tools/srfax): Email-to-fax service with HIPAA plans and a REST API. [Compare](https://toolgpa.com/compare/phaxio-vs-srfax) - [Fax.Plus](https://toolgpa.com/tools/fax-plus): Online fax by web, email, desktop and mobile apps, priced by pages. [Compare](https://toolgpa.com/compare/fax-plus-vs-phaxio) - [Sfax](https://toolgpa.com/tools/sfax): HIPAA cloud fax for healthcare offices, with print drivers and an API. [Compare](https://toolgpa.com/compare/phaxio-vs-sfax) - [InterFAX](https://toolgpa.com/tools/interfax): Cloud fax by subscription or prepaid credit, with REST and SOAP APIs. [Compare](https://toolgpa.com/compare/interfax-vs-phaxio) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 12, 2026: - https://www.phaxio.com/pricing - https://www.phaxio.com/faq - https://www.phaxio.com/features - https://www.phaxio.com Page: https://toolgpa.com/tools/phaxio Listed by ToolGPA (toolgpa.com).