ProntoFax
- Is it safe? What ProntoFax says it does with your chats and data, from its own policy pages.See ↓
- Is it free? We have not read the prices of ProntoFax yet; they are next in our queue. Until then, the official site has them.prontofax.com ↗
- What else does this?
MobileValidate
masked.chatfree
SingleFaxSee ↓
not read yet
Use
- For
- people who must fax documents to government agencies, doctors or insurers without a fax machine
- Used for
- photograph pages with a phone and fax them to an agency
- fax documents to a doctor's office or insurance company
- look up agency fax numbers before sending a document
- Has an MCP server (1 in the registry)public registry →
These are ProntoFax's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.
- MCP servercom.prontofax/prontofaxverified in the MCP registry
- Stateanswers, 2 toolschecked 2026-11-04
- Address to connectmcp.prontofax.com/mcp
- Status pagelinked from the homepageprontofax.com/status ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
MobileValidateMCP · sign-in
Checks whether phone numbers and email addresses are registered on messaging, social and consumer apps, plus line type and carrier, via one API.
66ActiveFrom $0.00 per use - #2
masked.chat
Strips names, emails and phone numbers from your messages on-device, swapping them for placeholders before any AI model sees them.
31 linking domainsFrom ≈ $11/mo - #3
SingleFax
Sends faxes from a browser, phone or email, billed per fax by page count, and provides temporary or permanent receiving numbers.
76ActiveFrom $0.99 per use - #4
Numbers OnlineMCP · open
Looks up any phone number for its carrier, location, community spam risk score and verified profile.
3ActiveFrom $9 once2025 - #5
Cheap international calls from your browserMCP · open
Places calls to mobile and landline numbers in about 200 countries from a web browser, billed per minute against prepaid credit.
Little sign of useActiveFrom $0.02 per use2026
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use ProntoFax for?
Sign in to leave a noteWhat is ProntoFax?
Sends a fax from a phone photo or uploaded PDF to any US fax number, charged only after delivery. It is listed in the Atlas under Voice.
Who is ProntoFax for?
people who must fax documents to government agencies, doctors or insurers without a fax machine
What are alternatives to ProntoFax?
In Voice, by use: MobileValidate, masked.chat, SingleFax, Numbers Online, Cheap international calls from your browser.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
Before we count this visit
Analytics and ad measurement tell us which pages and which of our ads do their job: Google Analytics and Google Ads, the Meta pixel, Yandex Metrica, and one first-party id of our own. Nothing is stored until you answer, and declining changes nothing about the site.