ProntoFax
Send a fax without leaving the chat: add pages, confirm a verified government fax number, pay $2.99 only when it is delivered. No account needed. English and Spanish.
- Brand
- ProntoFax
- Category
- Operations
- Primary Subcategory
- In-Chat Micro Widgets & Utilities
Integration details
Description
ProntoFax sends a fax from your phone or computer with no fax machine and no account. Ask Claude to send a fax, add the pages from your camera or a PDF, confirm the destination, and pay $2.99 by card in a form that opens in the chat. You are charged only when the fax is delivered. If it does not go through, you are not charged. What the connector does - Looks up verified fax numbers for US government offices from the ProntoFax directory: Social Security field offices, state unemployment and Medicaid agencies, the IRS by form, FEMA and more. Each number carries its official source and the date it was last verified. - Sends a fax of up to 25 pages, including an optional cover page, as photos or a PDF. A delivery confirmation with the time and page count goes to your email. What it does not do - It does not receive faxes. - It never guesses a fax number. When the directory has no verified number for an office, it uses the one on your letter. Payment is handled by Stripe on a ProntoFax checkout page. Your documents never pass through the assistant. They are used only to send your fax. Original photos are deleted as soon as they are processed, uploaded PDFs and processed pages within two days, and the fax document itself about 30 days after you send it. The delivery record stays as your proof of transmission, and confirmation comes by email. Details: https://www.prontofax.com/security/ Available in English and Spanish.
- Integration type
- Connector
- Verification status
Community connector- Platform
- Claude
- Primary Subcategory
- In-Chat Micro Widgets & Utilities
- Secondary Subcategories
- None listed
- Brand
- ProntoFax
- Access
- No account required
- First tracked
- 2026-10-14
- Tool count
- 2
- Geography
- US
The Primary Subcategory used for this profile’s headline score.
Other Subcategories where the Integration is listed.
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What discovery looks like

Claude can surface verified Connectors when they match a user’s Prompt.
How Claude Connector discovery works
Your Connector will compete to appear for users’ Prompts once Claude verifies it
Competing in Claude In-Chat Micro Widgets & Utilities
View Category2 tools agents can invoke
ProntoFax Claude Connector FAQ
How the directory, categories and Discoverability Score work.
Read the methodologyHow do I improve ProntoFax's Claude Connector discoverability?
The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.
What are ProntoFax alternatives on Claude?
As of 2026-10-28, ProntoFax competes with 00Widget, Bhasini, Call Me, Geekbot, LNX QR Codes, MachineTranslation.com, Pano, PayPerFax and 11 more in Claude In-Chat Micro Widgets & Utilities, ranked by public Discoverability Score.
Where is this profile measured?
This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.