Swap allows you to retrieve currency exchange rates from various services such as Fixer or currencylayer and optionally cache the results.
$ composer require florianv/swap-bundle php-http/message php-http/guzzle6-adapter ^1.0The complete documentation can be found here.
We are proudly supported by the following echange rate providers offering free plans up to 1,000 requests per day:
Fixer is a simple and lightweight API for foreign exchange rates that supports up to 170 world currencies. They provide real-time rates and historical data, however, EUR is the only available base currency on the free plan.
Currencylayer provides reliable exchange rates and currency conversions for your business up to 168 world currencies. They provide real-time rates and historical data, however, USD is the only available base currency on the free plan.
Here is the list of the currently implemented services:
| Service | Base Currency | Quote Currency | Historical |
|---|---|---|---|
| Fixer | EUR (free, no SSL), * (paid) | * | Yes |
| currencylayer | USD (free), * (paid) | * | Yes |
| European Central Bank | EUR | * | Yes |
| National Bank of Romania | RON | * | Yes |
| Central Bank of the Republic of Turkey | * | TRY | Yes |
| Central Bank of the Czech Republic | * | CZK | Yes |
| Central Bank of Russia | * | RUB | Yes |
| WebserviceX | * | * | No |
| 1Forge | * (free but limited or paid) | * (free but limited or paid) | No |
| Cryptonator | * Crypto (Limited standard currencies) | * Crypto (Limited standard currencies) | No |
| CurrencyDataFeed | * (free but limited or paid) | * (free but limited or paid) | No |
| Open Exchange Rates | USD (free), * (paid) | * | Yes |
| Xignite | * | * | Yes |
| CurrencyConverterApi | * | * | Yes (free but limited or paid) |
| xChangeApi.com | * | * | Yes |
| Array | * | * | Yes |
The MIT License (MIT). Please see LICENSE for more information.