International calls at unbeatable rates, direct from your browser
Stage
Established
Not given
Founded
2026
Not given
Based in
GB
DE
Pricing model
Not given
Paid
Pricing
Not given
Pay-as-you-go: calls cost from $0.024/minute for US calls, rates vary by destination. Initial top-up: $3 for eligible new accounts, $5 otherwise. Regular minimum credit purchase: $5. Live call translation: $0.19/minute. Phone number rental available for a monthly fee (US or Canada numbers).
Key features
Real-time exchange rates updated every 60 seconds
Official central bank and tax authority rates from 124 sources
160+ currencies supported
Historical exchange rate data with flexible date ranges
Multiple output formats: JSON, CSV, XML, XLSX
Official SDKs for JavaScript, Python, PHP, Rust and Go
Model Context Protocol (MCP) integration for AI agents
Bearer token authentication with simple setup
Low latency powered by Cloudflare edge network
99.9% measured uptime SLA
Call 150+ countries with per-minute rates
HD voice quality with adaptive adjustment
Live call translation with multiple language pairs
Works on iOS, Android and web browser
End-to-end encrypted calls
No downloads required
24/7 customer support
Rent US or Canada phone numbers
Send and receive SMS messages
What makes it different
No markup on mid-market rates; sourced from institutional interbank market data
Official published rates from central banks served unmodified with publication dates
Rates updated every 60 seconds, faster than most competitors
Free tier never expires; no credit card required to start
One API key for all 124 central banks and tax authority sources
Rates from $0.024/minute with no hidden fees or subscriptions
Live call translation feature for multi-language conversations
Instant setup with no SIM card needed
Works anywhere globally with internet connection
Free 1-minute trial for new accounts after card verification
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Calloza