I am trying to develop a simple program where I am able to generate an address successfully using a public key and a stake key. The network type is TestNet.

How can I check the balance of the generated address?

Code snippet is as follow:

var existingaddresses = _Addresses.Find(x => x.WalletId == wallet.Id).ToList().Count;
            var user = _users.Find(x => x.Id == wallet.UserId).FirstOrDefault();
            NetworkType net;
            if (IsMainNet)
                net = NetworkType.Mainnet;
                net = NetworkType.Testnet;
            Mnemonic mnc = keyService.Restore(wallet.Words, WordLists.English);
            PrivateKey masterKey = mnc.GetRootKey(user.Password);
            string PaymentPath = $"m/1852'/1815'/0'/0/"+ existingaddresses;
            PrivateKey paymentPrv = masterKey.Derive(PaymentPath);
            PublicKey paymentPub = paymentPrv.GetPublicKey(false);
            string stakePath = $"m/1852'/1815'/0'/2/"+existingaddresses;
            PrivateKey stakePrv = masterKey.Derive(stakePath);
            PublicKey stakePub = stakePrv.GetPublicKey(false);

            Address address = addressService.GetAddress(paymentPub, stakePub, net, AddressType.Base);

Now I want to check the balance of the generated address.

1 Answer 1


You can use the Blockfrost.io API to get information about the address. I'd recommend using the blockfrost-dotnet package for this.

  • I have tried it but i am getting content not found exception which means this Address doesnot exist on test net. Isnt it? What can be the reason? Oct 12, 2021 at 5:23
  • I think this happens if the address has never been used.
    – eddex
    Oct 12, 2021 at 6:31
  • agreed. as address is never used. Any idea what can be done to activate the address on testnet? Oct 13, 2021 at 7:32
  • 1
    Send some tADA to that address: testnets.cardano.org/en/testnets/cardano/tools/faucet
    – eddex
    Oct 13, 2021 at 12:19

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