curl --request GET \
  --url https://api.sandbox.monite.com/v1/einvoicing_connections \
  --header 'Authorization: Bearer <token>' \
  --header 'x-monite-entity-id: <x-monite-entity-id>' \
  --header 'x-monite-version: <x-monite-version>'

{
  "data": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "address": {
        "address_line1": "<string>",
        "city": "<string>",
        "country": "DE",
        "postal_code": "<string>",
        "address_line2": "<string>",
        "state": "<string>"
      },
      "credentials": [
        {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "created_at": "2023-11-07T05:31:56Z",
          "updated_at": "2023-11-07T05:31:56Z",
          "einvoicing_connection_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "network_credentials_identifier": "12345678",
          "network_credentials_schema": "NL:KVK"
        }
      ],
      "entity_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
      "legal_name": "<string>",
      "status": "active",
      "is_receiver": true,
      "is_sender": true,
      "provider_id": "12345"
    }
  ]
}