diff --git a/src/main/java/org/qortal/api/resource/CrossChainTradeBotResource.java b/src/main/java/org/qortal/api/resource/CrossChainTradeBotResource.java
index c3d7e397..73becab9 100644
--- a/src/main/java/org/qortal/api/resource/CrossChainTradeBotResource.java
+++ b/src/main/java/org/qortal/api/resource/CrossChainTradeBotResource.java
@@ -30,6 +30,7 @@ import org.qortal.api.Security;
 import org.qortal.api.model.crosschain.TradeBotCreateRequest;
 import org.qortal.api.model.crosschain.TradeBotRespondRequest;
 import org.qortal.asset.Asset;
+import org.qortal.controller.Controller;
 import org.qortal.controller.tradebot.AcctTradeBot;
 import org.qortal.controller.tradebot.TradeBot;
 import org.qortal.crosschain.ForeignBlockchain;
@@ -136,6 +137,9 @@ public class CrossChainTradeBotResource {
 		if (tradeBotCreateRequest.qortAmount <= 0 || tradeBotCreateRequest.fundingQortAmount <= 0)
 			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.ORDER_SIZE_TOO_SMALL);
 
+		if (!Controller.getInstance().isUpToDate())
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCKCHAIN_NEEDS_SYNC);
+
 		try (final Repository repository = RepositoryManager.getRepository()) {
 			// Do some simple checking first
 			Account creator = new PublicKeyAccount(repository, tradeBotCreateRequest.creatorPublicKey);
@@ -193,6 +197,9 @@ public class CrossChainTradeBotResource {
 		if (tradeBotRespondRequest.receivingAddress == null || !Crypto.isValidAddress(tradeBotRespondRequest.receivingAddress))
 			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
 
+		if (!Controller.getInstance().isUpToDate())
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCKCHAIN_NEEDS_SYNC);
+
 		// Extract data from cross-chain trading AT
 		try (final Repository repository = RepositoryManager.getRepository()) {
 			ATData atData = fetchAtDataWithChecking(repository, atAddress);