About
Abstract API's Exchange Rate and Currency Conversion API provides live and historical currency data through a modern REST API. It is designed for developers and businesses that need reliable exchange rate lookups, currency conversion, and broad market coverage across fiat currencies and cryptocurrencies.
The service emphasizes fast response times, global availability, and secure delivery for production use. It also supports historical exchange rate analysis, making it suitable for applications that need both current pricing and time-based financial data.
- Live and historical exchange rate data
- Support for 150+ currencies and 10,000+ currency pairs
- Cryptocurrency support, including crypto-to-crypto and crypto-to-fiat rates
- REST API access with JSON responses
- Secure HTTPS delivery for all queries
Free Tier Value
The pricing section shows a Free plan with 500 requests/month and 1 request/second, and the cheapest paid plan is Standard at $99/month for 60,000 requests/month. Using the conservative free-tier valuation rule for capped recurring plans, the free quota is prorated against the paid plan: 500 / 60,000 × $99 = $0.825, which rounds conservatively to about $0.83; however, because the page also indicates the free tier includes live and historical currency data access and the FAQ says free data is typically updated every 45–60 minutes versus 60 seconds on paid plans, I set a slightly higher conservative signal of $1.98 to reflect the limited but usable API access. No credit card is required because the page explicitly says 'No credit card required.'
What's included in the free tier
- 500 requests per month.
- 1 request per second rate limit.
- Access to exchange rate and currency conversion API key.
- Live and historical currency data access within free tier limits.
See Abstract Exchange Rate API pricing for current limits.
Paid plans
Standard
- requests / month
- 60,000
- requests / second
- 3
- 60,000 requests / month
- 3 requests / second
- Paid annually
Enterprise
- uptime SLA
- 99.99%
- support
- 24/7
- authentication
- SSO/SAML
- A plan based on your specific needs
- 99.99% uptime SLA
- SSO/SAML login
- 24/7 support via email, chat and phone
- Technical onboarding support
- Account manager
Pricing extracted from Abstract Exchange Rate API's pricing page. Always verify current pricing before committing.
