I am looking for datasets or ideally public APIs which would provide an estimate for postal shipping costs between 2 countries in Europe.
For example, given object size/dimensions/weight --> return an estimate for the costs of shipping it, between any 2 countries (or just between country A and B - it would be a start for me).
Does anyone know of such a service or where could I look further? (searching brought me to several such resources but for US only - I am specifically interested for the EU).