API get table data

I’m trying to get data from a table, and the url for that table data is /question#eyJkYXRhc2V0X3F1ZXJ5Ijp7ImRhdGFiYXNlIjo0MiwicXVlcnkiOnsic291cmNlLXRhYmxlIjoxMTk1fSwidHlwZSI6InF1ZXJ5In0sImRpc3BsYXkiOiJ0YWJsZSIsInZpc3VhbGl6YXRpb25fc2V0dGluZ3MiOnt9fQ==

Hi @guilherme.ma
I would recommend that you read this: https://www.metabase.com/blog/metabase-api/index.html
The best way to learn the API, is to just use Metabase while having your browser developer Network-tab open and looking at the request, and what data is being send/received.
When you haven’t saved a question, then it doesn’t exist as a “card” (legacy term).