Authoryze vs SingleFax

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Authoryze compared with SingleFax
Detail	Authoryze	SingleFax
What it does	Authorization and control layer for AI agent payments	Send one-time faxes online from $0.99, pay only if delivered
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Paid	Not given
Pricing	Team Starter: $39.99/month for up to 100 transactions per month. Team Pro: $174.99/month for up to 500 transactions per month. Additional transactions: $0.40 per transaction beyond plan limits. Individuals: 1.5% per transaction ($0.50 minimum), no subscription required, first 5 transactions free. Ne	One-time fax: from $0.99 for up to 10 pages, then $0.08 per extra page (max 1,000 pages), pay only if delivered. 30-day fax number: $4.99 one-time payment. Lifetime Basic fax number: $97 one-time payment. Lifetime Pro fax number: $147 one-time payment. Standard Plan (monthly): $6.58/mo or $79/year (
Key features	Single-use virtual cards for each approved purchase Per-transaction, daily, weekly, and aggregate spending limits Auto-approve threshold for small purchases Merchant allowlist with subdomain matching Complete audit trail of all transactions OAuth integration with Claude, ChatGPT, Claude Code, Codex and Cursor Team budgets and rules with shared envelope Per-member and per-agent transaction recording Visa and Mastercard support MCP-native integration	Send faxes from browser, email, or mobile app Pay only if delivery succeeds Support for up to 1,000 pages per fax Timestamped delivery confirmation Searchable AI transcripts for received faxes HIPAA Secure workflow with signed BAA IRS form filing with carrier proof Chrome extension for PDF faxing
What makes it different	Real card and funding details never exposed to agents Each card works once, then is dead Server-side enforcement of all spending rules One breach leaks only one disposable card, not funding source Works in minutes with no setup required	No account or subscription required for one-time faxes Pay only if fax delivers successfully Integrated IRS filing with official transmission proof Lifetime fax numbers with no monthly rental fees
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	8 −1 (down) since last check	25 no change since last check
Trust Flow (Majestic)	2	1
Citation Flow (Majestic)	29	27
Referring domains (Majestic)	109	36

4 details filled in for both companies.

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