diff --git a/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/ChiaProvidersBuilder.kt b/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/ChiaProvidersBuilder.kt
index 5c5d56b43..d19425123 100644
--- a/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/ChiaProvidersBuilder.kt
+++ b/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/ChiaProvidersBuilder.kt
@@ -34,7 +34,11 @@ internal class ChiaProvidersBuilder(
 
     private fun createTangemProvider(): ChiaNetworkProvider? {
         return config.chiaTangemApiKey?.letNotBlank {
-            ChiaJsonRpcProvider(baseUrl = API_CHIA_TANGEM, key = it)
+            ChiaJsonRpcProvider(
+                baseUrl = API_CHIA_TANGEM,
+                key = it,
+                isRequiredHexPrefixForTx = false,
+            )
         }
     }
 
@@ -43,6 +47,7 @@ internal class ChiaProvidersBuilder(
             ChiaJsonRpcProvider(
                 baseUrl = if (isTestnet) API_CHIA_FIREACADEMY_TESTNET else API_CHIA_FIREACADEMY,
                 key = config.chiaFireAcademyApiKey,
+                isRequiredHexPrefixForTx = true,
             )
         }
     }
diff --git a/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/network/ChiaJsonRpcProvider.kt b/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/network/ChiaJsonRpcProvider.kt
index c4981ae8e..bb14e1c1c 100644
--- a/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/network/ChiaJsonRpcProvider.kt
+++ b/blockchain/src/main/java/com/tangem/blockchain/blockchains/chia/network/ChiaJsonRpcProvider.kt
@@ -2,6 +2,7 @@ package com.tangem.blockchain.blockchains.chia.network
 
 import com.tangem.blockchain.common.Blockchain
 import com.tangem.blockchain.common.BlockchainSdkError
+import com.tangem.blockchain.common.HEX_PREFIX
 import com.tangem.blockchain.common.logging.AddHeaderInterceptor
 import com.tangem.blockchain.common.toBlockchainSdkError
 import com.tangem.blockchain.extensions.Result
@@ -11,7 +12,12 @@ import com.tangem.blockchain.network.createRetrofitInstance
 import java.math.BigDecimal
 import java.math.RoundingMode
 
-open class ChiaJsonRpcProvider(override val baseUrl: String, key: String) : ChiaNetworkProvider {
+open class ChiaJsonRpcProvider(
+    override val baseUrl: String,
+    private val isRequiredHexPrefixForTx: Boolean,
+    key: String,
+) :
+    ChiaNetworkProvider {
 
     private val api: ChiaApi by lazy {
         createRetrofitInstance(
@@ -62,7 +68,13 @@ open class ChiaJsonRpcProvider(override val baseUrl: String, key: String) : Chia
 
     override suspend fun sendTransaction(transaction: ChiaTransactionBody): SimpleResult {
         return try {
-            val sendResponse = retryIO { api.sendTransaction(transaction) }
+            val tx = if (isRequiredHexPrefixForTx) {
+                transaction.appendHexPrefix()
+            } else {
+                transaction
+            }
+
+            val sendResponse = retryIO { api.sendTransaction(tx) }
             if (sendResponse.success) {
                 if (sendResponse.status == SUCCESS_STATUS) {
                     SimpleResult.Success
@@ -81,6 +93,23 @@ open class ChiaJsonRpcProvider(override val baseUrl: String, key: String) : Chia
         }
     }
 
+    private fun ChiaTransactionBody.appendHexPrefix(): ChiaTransactionBody {
+        val aggregatedSignature = spendBundle.aggregatedSignature
+        val coinSpends = spendBundle.coinSpends
+        return copy(
+            spendBundle = spendBundle.copy(
+                aggregatedSignature = "$HEX_PREFIX$aggregatedSignature",
+                coinSpends = coinSpends.map {
+                    ChiaCoinSpend(
+                        coin = it.coin,
+                        puzzleReveal = "$HEX_PREFIX${it.puzzleReveal}",
+                        solution = "$HEX_PREFIX${it.solution}",
+                    )
+                },
+            ),
+        )
+    }
+
     companion object {
         // time in seconds, 1 minute only, 5 minutes gives bad estimate now
         private val ESTIMATE_FEE_TARGET_TIMES = listOf(60)