Hapn proposes an implementation of the ISO 15143-3 standard (AEMP 2.0). The API exposes a simple REST interface serving XML or JSON as output formats. You can choose the format by sending your accept header with either application/xml or application/json. XML is the default format.
Each endpoint exists with optional 'aempTokenId' authentication instead of OAuth2. This token has a default duration of 1 year.
Contact our customer success team to request aempTokenId token.