I thought Mercado libre is only available in Brazil but seems like they serviced the whole Latam. Also,it would be more appropriate and nicer if you also include the link to this CappLatam.
According to the page cappLATAM reports that:
No, the Mercado Libre platform is not available in the United States. However, thanks to an alliance with BigCommerce, U.S. sellers can offer their products for sale on Mercado Libre to reach new customers in Latin America.
https://capplatam.com/articulos-guias/hay-mercadolibre-en-estados-unidos/