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ExchangeRate-API vs SingleFax

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

ExchangeRate-API compared with SingleFax
Detail ExchangeRate-APISingleFax logo SingleFax
What it doesThe Accurate & Reliable Exchange Rate API Send one-time faxes online from $0.99, pay only if delivered
StageEstablished Not given
Founded2010 Not given
Based inNot given US
Pricing modelFreemium Not given
PricingFree plan with 1.5K API requests per month and daily updates. Pro plan at $10/month with 30k requests and hourly updates. Business plan at $30/month with 300 requests and 5-minute updates. 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
  • 165 currencies support
  • JSON API responses
  • 30+ years historical data
  • Multi-AZ AWS infrastructure
  • Cloudflare network delivery
  • Real-time status monitoring
  • Long-term support commitment
  • No breaking changes policy
  • 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
  • Exceptional uptime record with 99.99% uptime in 2024
  • Multiple data sources for accurate rates
  • Reliable long-term support with no breaking changes
  • Free tier available with no credit card required
  • Easy integration requiring just 2 lines of code
  • 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 planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)82 +1 (up) since last check25 no change since last check
Trust Flow (Majestic)331
Citation Flow (Majestic)5227
Referring domains (Majestic)266736

4 details filled in for both companies.

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