diff --git a/src/main/tjava/com/r35157/cryptowallet/solana/SolanaWallet.tjava b/src/main/tjava/com/r35157/cryptowallet/solana/SolanaWallet.tjava
index e9bd819..b8a0341 100644
--- a/src/main/tjava/com/r35157/cryptowallet/solana/SolanaWallet.tjava
+++ b/src/main/tjava/com/r35157/cryptowallet/solana/SolanaWallet.tjava
@@ -88,44 +88,6 @@ public interface SolanaWallet {
             @NotNull ΩSolanaWalletIdΩ recipient
     ) throws IOException, InterruptedException;
 
-    /**
-     * Builds an unsigned transaction that transfers a specific amount of SOL.
-     *
-     * <p>The current wallet is used as fee payer and required signer. This
-     * method does not sign or submit the transaction.</p>
-     *
-     * @param recipient the wallet that should receive the SOL
-     * @param amount the amount of SOL to transfer
-     * @return the unsigned serialized transfer transaction
-     * @throws IllegalArgumentException if the recipient or amount is invalid
-     * @throws IOException if a recent blockhash cannot be fetched
-     * @throws InterruptedException if the calling thread is interrupted
-     */
-    @NotNull
-    SolanaUnsignedTransaction buildSolanaTransferTransaction(
-            @NotNull ΩSolanaWalletIdΩ recipient,
-            @NotNull ΩSolanaAmountΩ amount
-    ) throws IOException, InterruptedException;
-
-    /**
-     * Builds an unsigned transaction that transfers the wallet's complete
-     * native SOL balance after paying the exact transaction fee.
-     *
-     * <p>The current wallet is used as fee payer and required signer. This
-     * method does not sign or submit the transaction.</p>
-     *
-     * @param recipient the wallet that should receive the SOL
-     * @return the unsigned serialized transfer transaction
-     * @throws IllegalArgumentException if the recipient is invalid
-     * @throws IllegalStateException if the balance cannot cover a transfer
-     * @throws IOException if the balance, blockhash or fee cannot be fetched
-     * @throws InterruptedException if the calling thread is interrupted
-     */
-    @NotNull
-    SolanaUnsignedTransaction buildSolanaTransferAllTransaction(
-            @NotNull ΩSolanaWalletIdΩ recipient
-    ) throws IOException, InterruptedException;
-
     /**
      * Signs an unsigned Solana transaction.
      *
diff --git a/src/main/tjava/com/r35157/cryptowallet/solana/impl/ref/SolanaWalletImpl.tjava b/src/main/tjava/com/r35157/cryptowallet/solana/impl/ref/SolanaWalletImpl.tjava
index 373b7c1..db5899d 100644
--- a/src/main/tjava/com/r35157/cryptowallet/solana/impl/ref/SolanaWalletImpl.tjava
+++ b/src/main/tjava/com/r35157/cryptowallet/solana/impl/ref/SolanaWalletImpl.tjava
@@ -86,28 +86,6 @@ public class SolanaWalletImpl implements SolanaWallet {
         return solanaBlockChain.sendTransaction(signedTransaction);
     }
 
-    @Override
-    public @NotNull SolanaUnsignedTransaction buildSolanaTransferTransaction(
-            @NotNull ΩSolanaWalletIdΩ recipient,
-            @NotNull ΩSolanaAmountΩ amount
-    ) throws IOException, InterruptedException {
-        return solanaBlockChain.buildSolanaTransferTransaction(
-                address,
-                recipient,
-                amount
-        );
-    }
-
-    @Override
-    public @NotNull SolanaUnsignedTransaction buildSolanaTransferAllTransaction(
-            @NotNull ΩSolanaWalletIdΩ recipient
-    ) throws IOException, InterruptedException {
-        return solanaBlockChain.buildSolanaTransferAllTransaction(
-                address,
-                recipient
-        );
-    }
-
     @Override
     public @NotNull SolanaSignedTransaction signTransaction(
             @NotNull SolanaUnsignedTransaction transaction