Real-time Secure JSON API for 160+ World Currencies (plus Crypto) with an average response of just 21ms
From just $18/month including 1,000,000 API calls
We ONLY use trusted sources, including leading market-making banks
Realtime currency, OHLC and time-series APIs
WebSocket streaming and up to 55 years of history!
Midpoint rates update every 60, 30, or 1 second by plan. Crypto refreshes every second on every plan, always.
Every plan ships with 1,000,000 API calls a month as standard. Need more? Top up anytime, no long-term contracts.
Access 160+ fiat currencies, 2,300+ FX trading pairs, and 500+ cryptocurrencies - all through a single, simple JSON API.
Get accurate midpoint exchange rates sourced from trusted banks and data providers - perfect for conversion, daily history, and time-series.
Open, High, Low, Close data across daily, hourly, and minute intervals - everything you need to chart FX price action.
Historical data stretching back to 1970 for select pairs, available daily, hourly, or by the minute - start dates vary by pair.
Get live bid/ask FX quotes across 2,300+ pairs, plus full quote time-series data for backtesting and analysis.
Choose fetch-one, fetch-multi, fetch-all, fetch-matrix, or fetch-many-to-one - pull exactly the currency data your application needs, nothing more.
Convert between any fiat and crypto pair - 500+ cryptocurrencies, updated every second, on every plan, no exceptions.
Stream live bid/ask data over WebSockets, with hundreds of updates per second on our most liquid trading pairs.
Plug fastFOREX straight into your LLM or AI agent with our native MCP Server - no custom integration required.
Millions of price updates a day on our most liquid pairs - true tick-level granularity is coming soon to fastFOREX.
Slow response times are a drag. They slow down your application which leaves your customers annoyed (who needs that?). Our response times are the best in the business, which will keep you and your customers happy.
Our competitors may use weaker security, but we use SHA-256 SSL encryption to keep you and your customers safe.
We're geeks at heart, so you might not be surprised that IPv6 and HTTP/2 come as standard. What you might not expect is that our support team is on hand to answer your questions 365 days a year.
We know that speed and reliability are essential to you. Our documentation is written and road-tested by developers to make sure you can quickly implement your solution.
At fastFOREX, we eat five nines for breakfast. In fact, we'll raise you five nines and give you guaranteed availability, massive concurrent volumes, time-series and the fastest response times available.
Our mantra at fastFOREX is to keep it fast and simple. Our detailed and precise documentation will get you on the road in under ten minutes - guaranteed (we know you love a challenge).
Get real-time pricing data for 750+ cryptocurrency pairs, made up from over 500+ unique cryptocurrencies. We integrate with all the biggest & best exchanges worldwide to provide reliable & robust real-time pricing data for the most popular cryptocurrency trading pairs.
For a complete list of all supported cryptocurrencies, trading pairs and stablecoins, sign in to the customer console.
Use our conversion API to get exchange rates between any physical or cryptocurrency pair you need. BTC/ZAR? No problem!
We can still provide reliable and up to date exchange rates for any set of fiat/physical/cryptocurrency pairs. All through our fast, simple & secure JSON API. And all included for just $18 a month!
Finding a good exchange rate API (read our comprehensive comparison) can be difficult, so we've simplified it for you. We aggregate our data from 100+ FX contributors plus major OTC inter-dealer brokers and from the dealing rooms of leading market-making banks.
All accounts have access to the fastFOREX API, with live rates for over 160+ world currencies and 500+ cryptocurrencies.
Get a Free API Key, and you will be able to try the complete service for the entire duration of your 7-day free trial.
Once your seven day free trial is over, upgrade to our paid plan.

We had intermittent failures with our previous currency exchange API provider. We decided to change to fastFOREX. The setup was easy, and we always get fast response times. That’s all we need.
Esteban Tósta, Beyond Bath & Bed
We certainly do - with no Credit Card required! Get your Free Trial API Key, and you will be able to try the complete service for the entire duration of your 7-day free trial.
We aggregate from 100+ FX contributors plus major OTC inter-dealer brokers (Tullett Prebon, ICAP/Parameta, Tradition, Fenics), and from the dealing rooms of leading market-making banks - including ABN AMRO, ANZ, Barclays Capital, HSBC, JPMorgan, Royal Bank of Canada, Standard Chartered, and UBS.
Each HTTP request to our API endpoints counts as a single request towards your usage quota (regardless of the number of currencies or data points returned).
The only exceptions to this are the /fetch-matrix & /fetch-many-to-one API endpoints which are charged at one request for each pair returned in the call.
There is no minimum contract period and no scary paperwork to sign.
You can view your current usage in your user console. Just log into you account to see where you are up to.
We can accept all major Credit Cards and PayPal.
If you're paying for an annual subscription, you can also pay by bank / wire transfer. If you would like to pay this way, just drop us an email and we'll hook you up with all the correct details and an invoice.
You can buy additional API calls in blocks of 1m at $18 per month. If you buy more than 6 million/month we can offer a further discount. Contact us today and we will arrange everything for you!
Yes, you can fetch a time-series dataset of currency rates with our API. Read more here.
Yes! We provide real-time pricing data on over 500 cryptocurrencies which equates to 750+ cryptocurrency pairs.
Yes! We now offer historial data as far back as Jan 1970. How far we go back depends on the currency pair. Read
We offer websocket/streaming data WebSocket documentation.
Our currency API offers an extensive range of 160+ world currencies - many more than our competitors.
See below for a list of physical currencies - or select "/currencies" in the demo at the top of the page.
Sign in to the customer portal to see a list of all the supported cryptocurrencies. Or use the API Playground at the top of the page.




