Hosted Fax MCP Servers Compared: Faxify vs Fax.Plus in 2026

Faxify and Fax.Plus both run hosted MCP servers that let an AI assistant such as Claude or ChatGPT send faxes from your account. The biggest difference is access: Faxify's server works on every plan, including the free one (5 pages a month, no credit card), while Fax.Plus's requires a paid plan starting at $8.99 a month. In return, Fax.Plus offers more: 38 tools to Faxify's 18, faxing to 180+ countries against Faxify's US and Canada, and scoped tokens for unattended agents on Enterprise.

I built Faxify's MCP server, so read this as a comparison written by one of the two vendors. Faxify is an online fax service from Const Agility, LLC in Texas, USA, for fax numbers in the United States and Canada. The bias is in the framing; the facts are checkable. Every Fax.Plus figure below comes from Fax.Plus's own pages, checked on September 22, 2026, and linked.

TL;DR

• Access: Faxify includes MCP on every plan, free included. Fax.Plus requires a paid plan, from Basic at $8.99/month or $83.99/year.
• Breadth: Fax.Plus has 38 tools in 6 categories, including contacts and number management. Faxify has 18 in 4.
• Reach: Fax.Plus sends to 180+ countries. Faxify sends to the US and Canada only.
• Sign-in: both use browser OAuth; only Fax.Plus Enterprise adds scoped tokens for headless agents.
• History: Faxify's server went live in November 2025. Fax.Plus's launched as an Enterprise-only beta in May 2026 and has since opened to every paid plan.
• Faxbot is a different thing: MIT-licensed software you host yourself, on your own carrier account.

What is a hosted fax MCP server?

A fax MCP server gives an AI assistant fax tools it can call: send a fax, check whether it was delivered, read what came in. MCP, the Model Context Protocol, is the open standard Claude, ChatGPT, Cursor and other assistants use to call outside tools. A hosted server runs at a URL the vendor operates: you add the URL to your assistant, sign in, and the tools appear. There's no server of yours to deploy or keep current with the MCP spec.

Fax is a good fit for an assistant because so much legal, government and real-estate paperwork still moves by fax (here's where digital faxing is heading). Faxify's server lives at https://mcp.faxify.com/api/v1/mcp and Fax.Plus's at https://mcp.fax.plus/mcp.

Since late May 2026, about ten smaller services (GotFreeFax, FaxSeal and Faxer among them) have published fax MCP servers too. Most sell faxes one at a time or in prepaid packs rather than by subscription, and GotFreeFax also sends a free fax of up to 3 pages, twice a day, once the sender confirms by email. The table below sticks to the two subscription services, whose MCP servers run on your whole fax account.

How do the Faxify and Fax.Plus MCP servers compare?

Fax.Plus sources: its pricing page, MCP page and MCP documentation. For whole-product comparisons, see the best online fax services in 2026 and our online fax pricing comparison.

Who shipped first?

Both companies claim a first, and both claims can hold. Faxify's server went live on November 9, 2025 (launch guide) as the first hosted commercial fax MCP server: a fax service running MCP for its own customers. Every other fax company's fax MCP server I could find, in the official MCP registry or web archives, appeared in May 2026 or later. Fax.Plus describes itself as "the first enterprise fax provider to ship one," and an archived copy of its API docs shows the server as an Enterprise-only beta in May 2026. I wrote up what six months of running ours taught us separately.

Is there a free fax MCP server?

Yes. Faxify's hosted MCP server works on the free plan: 5 pages every month, no credit card, no MCP surcharge. You sign in with the same Google, Apple or email one-time code as the apps, and your assistant's faxes come out of the same monthly allowance. Ads appear only in the mobile apps, never in MCP or the web app. The free plan is send-only; receiving needs a dedicated fax number, which comes with the paid plans from $7.99 a month.

Fax.Plus's server is not free. Its MCP documentation lists the Free plan as unsupported, and that plan is 10 pages in total, granted once after you verify a mobile number. The cheapest way in is Basic at $8.99 a month, or $83.99 a year, with 200 pages a month and a fax number.

Fax.Plus launched its server on Enterprise only and has since opened it to Basic. That's the right direction, and I'd go one step further. An MCP server is a way to connect, like a mobile app or a web login; the product is the faxes. Charge for pages and numbers, and let people connect however they want. A paywall in front of the connection screens out the people most likely to try it first: developers testing an idea before anyone has signed off on a budget. We put MCP on every Faxify plan at launch, and I'd make the same call today.

Where does Fax.Plus come out ahead?

More tools. Fax.Plus's 38 tools include 11 for contacts and shared contact groups, plus tools for fax number assignments, team members, and editing queued faxes in the outbox. Faxify's 18 cover sending, drafts and previews, your fax history, and your plan and account. If your workflow runs on shared contacts or number management, Fax.Plus has tools for it and Faxify doesn't.

More reach. Fax.Plus sends to more than 180 countries and sells fax numbers in 48. Faxify faxes US and Canadian numbers only.

Headless agents. On Enterprise, Fax.Plus issues Personal Access Tokens with granular scopes (read-only fax access, for example), meant for server-side agents with nobody around to sign in. Faxify has neither: a connected assistant can call all 18 tools. Sign-in tokens expire and you reconnect; there's no refresh flow yet, so an unattended agent stops until someone signs in again.

Scale. Fax.Plus says it serves over 5 million customers, its docs list ISO 27001 and SOC 2 Type 2 certifications, and its higher plans support teams with an admin console. Faxify accounts are single-user.

How does Faxify's server handle files and risky actions?

The design choice I'd defend hardest is keeping file bytes away from the model. In May 2026 we tried letting assistants pass a document inline, as base64 text inside the tool call, and pulled it the same day. The model has to retype the whole file, and it gets characters wrong: in live testing, a 5.5 KB PDF arrived with about 18 corrupted bytes, and the fax came out blank below the header. Two days later we shipped request_upload_url, which returns a short-lived signed upload link: the file goes straight to storage, never through the model or our server. Fax.Plus landed in the same place: its docs say attached files upload directly to Fax.Plus, not through the model.

Second, Faxify's tools can't buy anything or delete your account; we removed the account-deletion tool before launch. An assistant can save a draft, render a preview with the cover page (get_draft_preview), and wait for your go-ahead before calling send_fax_using_draft. Fax.Plus drew a similar line, keeping number purchases, account balance, team management and webhooks in its REST API rather than its MCP server. The complete guide to Faxify MCP lists all 18 tools and per-client setup.

What about Faxbot?

The other name you'll run into is Faxbot, and it's a different kind of product: MIT-licensed, open-source software you run yourself. You deploy it with Docker Compose, connect your own fax carrier account (its backends include Phaxio, Sinch, Documo and SignalWire, or your own FreeSWITCH or Asterisk server), and it ships MCP servers for Node and Python.

That makes Faxbot infrastructure you operate, where Faxify and Fax.Plus are services you turn on. With Faxbot, the carrier contract, uptime, storage and every MCP spec change are yours to handle; when I checked in September 2026, its main branch hadn't changed since September 2025. If you want to own the whole stack, that trade can be worth making. If you found Faxbot because you want an assistant to send a fax this afternoon, a hosted server is the shorter path. Faxbot's repository also predates Faxify's server by two months, which is why our claim is "first hosted commercial," not "first."

When Faxify is not the answer

• You fax outside the US and Canada. Faxify can't send there. Fax.Plus reaches 180+ countries.
• Your agent runs unattended. Faxify sign-in tokens expire and you reconnect; there's no refresh flow yet. Fax.Plus Enterprise's scoped Personal Access Tokens are built for server-side agents.
• Your team shares contacts, numbers or seats. Faxify accounts are single-user, and its MCP server has no contact tools. Fax.Plus supports teams and shared contact groups.
• You want to own the stack. Run Faxbot on your own carrier account.
• You're building fax into your own product. Use a carrier fax API such as SignalWire or Telnyx instead.

FAQ

What is the best fax MCP server? As of September 2026, Faxify's hosted MCP server is the best fit for a free account in the US and Canada: MCP comes with the free plan (5 pages a month) at no extra cost. Fax.Plus is the stronger choice for international faxing or its 38 tools, from $8.99 a month on Basic; team accounts need Business or Enterprise, and scoped tokens for headless agents need Enterprise, from $79.99 a month billed annually.

Is there a free fax MCP server? Yes. Faxify's hosted MCP server works on its free plan, which includes 5 fax pages every month to US and Canadian numbers, with no credit card. Fax.Plus's MCP server needs a paid plan, starting with Basic at $8.99 a month.

Does Fax.Plus MCP work on the free plan? No. As of September 2026, Fax.Plus MCP requires a paid plan, starting with Basic at $8.99 a month or $83.99 a year. It launched as an Enterprise-only beta in May 2026 and now works on every paid plan: Basic, Premium and Business connect through OAuth, and Enterprise adds Personal Access Tokens. Accounts with Advanced Security Controls enabled can't connect on any plan. The free plan, 10 pages in total, can't connect either.

What is a hosted fax MCP server? A hosted fax MCP server is a Model Context Protocol server that a fax company runs for you at a public URL. You add the URL to an AI assistant such as Claude or ChatGPT, sign in, and the assistant can send and track faxes. Faxify and Fax.Plus both offer one; Faxbot, by contrast, is fax software you host yourself.

Is there a hosted alternative to Faxbot? Yes. Faxbot is MIT-licensed fax software you deploy yourself, with your own fax carrier account. For a server someone else runs, Faxify includes a hosted fax MCP server on every plan, free included, for US and Canadian numbers, and Fax.Plus offers one on paid plans from $8.99 a month, with faxing to more than 180 countries.

---

Ready to send a fax?

Faxify is free for the first 5 pages every month — no credit card, no trial. Need to send just one fax? A single Fax Pass is $2.99, no subscription. Paid plans start at $7.99/month (about $5.83/month on the annual plan) and include a dedicated fax number for incoming faxes. Every plan includes the MCP server: start at mcp.faxify.com or read the Faxify MCP overview.

Download for iOS · Get for Android · Use on the Web

For business volume

Email hello@faxify.com or schedule a call with our founder, Jangul Aslam. You will reach a real person on email, phone, or video call.

Don't need fax? Try NxtTools

NxtTools is our companion app — same PDF tools, scanner, and document toolkit, minus the fax. Free, ad-supported, no account required. NxtTools at nxt.tools

---

Written by Jangul Aslam at Const Agility, LLC — makers of Faxify.