The "Melhor Envio" API does not calculate more than 1 product, and shipping does not calculate another address, only 1 too

Good morning @caua, I have never used this API, I didn’t even know that this type of API existed, as I never needed it, but researching, and as I have already used another API that blocked me in certain queries in more than one item, I thought I could help you, who knows another idea, here is a link to what I found there on the website:
https://centraldeajuda.melhorenvio.com.br/

Como são cotados envios com mais de um produto por meio da integração com o Melhor Envio? – Melhor Envio