Free plan with 100 daily API calls; paid plans from USD 14.99/month (Basic with 10,000 requests) to USD 99.99/month (Enterprise+ with 500,000 requests); custom enterprise pricing available.
Not given
Key features
Real-time currency exchange rates
Historical exchange rates
Currency conversion
168 world currencies and precious metals
JSON API format
HTTPS encryption
Source currency switching
Bid/Ask spread data
Compare plans by estimated all-in monthly cost at your usage
Enter ZIP code to see available plans in your service area
Upload recent bill or provide usage details for comparison
Review all fees, credits, and contract terms alongside rates
Enroll and switch providers in minutes with expert guidance
Real-time monitoring of plan pricing and updates
ESI ID lookup tool for Texas service addresses
No sponsored listings, plans ranked by actual savings
What makes it different
Update frequency from 60 seconds to hourly depending on plan
19 years of historical exchange rate data
Free plan with no credit card required
Calculates real monthly bills including all hidden fees and delivery charges most sites don't show
Uses actual usage patterns from 100,000+ Texas homes to predict your costs accurately
Licensed by the Public Utility Commission of Texas as official broker
Completely free with no sign-up required to compare plans
No sponsored listings ensures unbiased plan rankings by your actual savings
SlashPlan