# Languages

Use this endpoint to retrieve a list of supported IETF language tag codes.<br/>- You can use these codes when constructing requests across all travel services API collections, including both accommodation and car rental endpoints.

 - [POST /common/languages](https://developers.booking.com/demand/docs/open-api/3.2-beta/demand-api/commonlanguages/common/languages.md): This endpoint returns a list of human language codes and their names in the corresponding language. To get the full list call the endpoint passing an empty body. The language codes returned are what i