Any solution to get Tezos(XTZ) balance of wallet address in Flutter? Any packages? or direct API? PS: I used https://pub.dev/packages/tezster_dart, but it’s not worked with my flutter version, which has not been updated until 16 months.
I don't use Flutter, so not sure about that specifically. But yes there is the Tezos RPC, which is an API to query data from the node directly.
For example heres how to query an XTZ balance of a specific contract: https://gitlab.com/tezos/tezos/-/blob/master/docs/api/jakarta-openapi.json#/default/get_context_contracts__contract_id__balance
I've sent you a link to this API previously also for token balances / NFT balances. This API also has endpoints for querying info about an account: https://api.tzkt.io/