diff --git a/README.md b/README.md
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@@ -498,6 +498,7 @@
 | [Exchangeratesapi.io](https://exchangeratesapi.io)                                                           | Exchange rates with currency conversion                                                  | `apiKey` | Yes   | Yes     |
 | [Frankfurter](https://www.frankfurter.app/docs)                                                              | Exchange rates, currency conversion and time series                                      | No       | Yes   | Yes     |
 | [FreeForexAPI](https://freeforexapi.com/Home/Api)                                                            | Real-time foreign exchange rates for major currency pairs                                | No       | Yes   | No      |
+| [MetalpriceAPI](https://metalpriceapi.com)                                                                   | Real-time and historical exchange rates and currency conversion API                      | `apiKey` | Yes   | Unknown |
 | [National Bank of Poland](http://api.nbp.pl/en.html)                                                         | A collection of currency exchange rates (data in XML and JSON)                           | No       | Yes   | Yes     |
 | [VATComply.com](https://www.vatcomply.com/documentation)                                                     | Exchange rates, geolocation and VAT number validation                                    | No       | Yes   | Yes     |