# FaxFair

> Send a fax online to the United States and Canada from faxfair.com. A website fax of up to 40 pages is $2.49, and a fax of 41 to 100 pages is $6.99. In the iPhone app the first fax is free, up to 40 pages, once per iPhone. After that the packs are 1 fax for $2.49, 3 for $5.99 or 10 for $14.99. An agent API and an MCP server exist. Docs: https://faxfair.com/docs/

FaxFair (faxfair.com) sends faxes. There is no subscription. A failed fax is not charged: a card hold is canceled, an API-key hold is released, or a USDC payment is credited to that wallet for the next fax.

## Questions agents are asked

- [How do I send a fax online?](https://faxfair.com/docs/send-a-fax/): Upload a PDF or a photo on the home page, type one US or Canadian fax number, and pay by card. The card is charged only after delivery.
- [Send a fax from an AI agent](https://faxfair.com/docs/agents/): An agent API and an MCP server exist. The docs are at https://faxfair.com/docs/agents/.

## Docs

- [How to send a fax online](https://faxfair.com/docs/send-a-fax/): Browser steps, the website price, and which numbers are refused.
- [Pricing](https://faxfair.com/docs/pricing/): Website $2.49 up to 40 pages, $6.99 for 41 to 100. App packs are $2.49, $5.99 and $14.99. The first app fax is free, up to 40 pages. US and Canada only.
- [Fax API](https://faxfair.com/docs/api/): An HTTP API exists for agents. The docs are at https://faxfair.com/docs/api/.
- [AI agents](https://faxfair.com/docs/agents/): An MCP server exists. The docs are at https://faxfair.com/docs/agents/.

## Guides

Guides for people sending or receiving a fax. Each starts with the answer and lists its sources at the end. Hub: https://faxfair.com/guides/

- [How to send a fax from a fax machine: steps and dialing](https://faxfair.com/guides/how-to-send-a-fax/): To send a fax, load the pages face up, dial as on a phone and press Start. The digits for U.S. and overseas numbers, and what to do when a fax fails.
- [How to fax from an iPhone: send one with or without an app](https://faxfair.com/guides/how-to-fax-from-iphone/): To fax from an iPhone with no app or account, open faxfair.com in Safari, upload a PDF or photo and type the number. We also explain how to scan paper.
- [Free fax app for iPhone: what 8 apps charge to send](https://faxfair.com/guides/free-fax-app-for-iphone/): Each free fax app for iPhone we checked charges after at most a couple of free faxes, 10 pages or a trial. Or use faxfair.com, $2.49 for up to 40 pages.
- [How to fax without a fax machine: 4 ways](https://faxfair.com/guides/how-to-fax-without-a-fax-machine/): To fax without a fax machine, upload a PDF or photo on faxfair.com for $2.49 (up to 40 pages, as of November 2026), or use an app, a store or a library.
- [How to fax from email: what it needs and costs](https://faxfair.com/guides/how-to-fax-from-email/): The three email to fax services we checked need a paid plan after any free trial. Or upload an attachment at faxfair.com, $2.49 for up to 40 pages.
- [Can you fax without a phone line? 5 setups compared](https://faxfair.com/guides/can-you-fax-without-a-phone-line/): Yes, if you fax online, such as from faxfair.com in a browser. Which setups need a phone line, why VoIP can fail a fax machine, and the settings that help.
- [One-time fax: send one with no account or subscription](https://faxfair.com/guides/one-time-fax/): Send a one-time fax on FaxFair with no account for $2.49, up to 40 pages as of November 2026, or use a free fax website, a store or a library instead.
- [How long does it take to send a fax? What slows it down](https://faxfair.com/guides/how-long-does-it-take-to-send-a-fax/): Most faxes take about a minute a page, and a typed page can go in 15 seconds. What slows a fax down, what to do about it, and how to tell it went through.
- [Why is my fax not going through? Errors and fixes](https://faxfair.com/guides/why-is-my-fax-not-going-through/): What No Response/Busy, Comm.Error, #005 and #018 mean when a fax fails, and what to do about each, from the Brother, Canon and Epson manuals.
- [How to fax medical records: requests, fees and steps](https://faxfair.com/guides/how-to-fax-medical-records/): Have a doctor's office fax your records or fax them yourself, with HHS's time limits and fees, what goes on an authorization, and what to ask the office.
- [Where can I fax something near me? Stores and libraries](https://faxfair.com/guides/where-can-i-fax-something-near-me/): FedEx Office, The UPS Store, Office Depot, Staples and some libraries send faxes. How to find one near you, what to bring and what to ask first.
- [How much does it cost to fax? Store and online prices](https://faxfair.com/guides/how-much-does-it-cost-to-fax/): At the stores and libraries we checked that list a price, a U.S. fax's first page runs from free to $5.00. On FaxFair, up to 40 pages cost $2.49.
- [What is a fax number? What it looks like and how to find one](https://faxfair.com/guides/what-is-a-fax-number/): A fax number is a phone number answered by a fax machine or fax service. What it looks like in the U.S., how to find one, and whether you need your own.
- [IRS fax number by form: SS-4, 2848, 8821, 2553 and more](https://faxfair.com/guides/irs-fax-number/): There's no single IRS fax number. Find the one for your form or notice, with the numbers for Forms SS-4, 2848, 8821, 2553, 3911 and 4506-T from IRS.gov.
- [Social Security fax number: where to fax your documents](https://faxfair.com/guides/social-security-fax-number/): Where ssa.gov says to fax Social Security forms and records, how to find your office's fax number, what not to fax, and a cover sheet checklist.
- [How to get an EIN without an SSN by faxing Form SS-4](https://faxfair.com/guides/how-to-get-an-ein-without-an-ssn/): Without an SSN or ITIN, the IRS online form won't work. Fax Form SS-4 with a fax number on it, and the IRS faxes your EIN back in about 4 business days.
- [Is a fax confirmation proof your fax was received?](https://faxfair.com/guides/fax-confirmation/): A fax confirmation shows your fax went through to the number you dialed, not that anyone logged it. What to do when an office says it never arrived.
- [When was the fax machine invented? Fax history since 1843](https://faxfair.com/guides/when-was-the-fax-machine-invented/): The fax machine wasn't invented in one year. Its principle dates to 1843, before the telephone, and its history runs from Alexander Bain to the internet.
- [Why do doctors still use fax? What the data and rules say](https://faxfair.com/guides/why-do-doctors-still-use-fax/): Why U.S. doctors and hospitals still fax, with ASTP/ONC figures through 2025 and a dated timeline of the CMS and ASTP/ONC rules moving records online.
- [How does a fax machine work? The 5 steps, explained](https://faxfair.com/guides/how-does-a-fax-machine-work/): A fax machine works in 5 steps. It scans a page into dots, codes them, agrees on a speed with the other machine, sends the page as sound and prints it.
- [The fax machine sound, and what each beep means](https://faxfair.com/guides/fax-machine-sound/): The fax machine sound is two fax machines talking over a phone line. We match each beep, whistle, warble and hiss to its signal, in the order you hear it.

## API

- An agent API and an MCP server exist. Docs: https://faxfair.com/docs/agents/
- Base URL: https://faxwell-api.onrender.com
- Quote: GET /v1/agent/quote?to=+12125550100&pages=3
- Send: POST /v1/agent/faxes with JSON {"to","pdf_url","priority"} or multipart file+to. priority true selects the priority tier.
- Status: GET /v1/agent/faxes/{id}
- Key: POST /v1/agent/keys {"amount_cents":500} then Authorization: Bearer fw_...
- MCP: POST https://faxwell-api.onrender.com/mcp. quote_fax and send_fax take priority true or false.
- Pay per request: x402 protocol v2, scheme exact, USDC. Default network eip155:84532 (Base Sepolia). Mainnet eip155:8453 when the operator enables it. Facilitator verifies and settles so the route can be listed in the Coinbase x402 Bazaar.
- Coverage: United States and Canada, including US territories. Premium-rate numbers (900, 976) and other countries are rejected, not priced.
- Full text: https://faxfair.com/llms-full.txt