diff --git a/packages/core/package.json b/packages/core/package.json
index c224725..2430e76 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@emeraldpay/api",
-  "version": "0.4.3",
+  "version": "0.4.4-dev",
   "description": "Common code for Emerald gRPC APIs",
   "license": "Apache-2.0",
   "main": "lib/index.js",
diff --git a/packages/core/src/typesTransaction.ts b/packages/core/src/typesTransaction.ts
index dca5f60..4b8aec6 100644
--- a/packages/core/src/typesTransaction.ts
+++ b/packages/core/src/typesTransaction.ts
@@ -1,12 +1,6 @@
 import * as transaction_message_pb from './generated/transaction.message_pb';
 import { DataMapper } from './Publisher';
-import {
-  AnyAddress,
-  BlockInfo,
-  Blockchain,
-  ConvertCommon,
-  SingleAddress,
-} from './typesCommon';
+import { AnyAddress, BlockInfo, Blockchain, ConvertCommon, SingleAddress } from './typesCommon';
 import { MessageFactory } from './typesConvert';
 
 export enum Direction {
@@ -47,9 +41,10 @@ export interface AddressTransaction {
   cursor?: string;
   /** True if transaction is removed from blockchain */
   removed: boolean;
-  /** True if transaction is failed */
+  /** True if the transaction is failed */
   failed: boolean;
   changes: Change[];
+  txIndexInBlock?: number;
 }
 
 export interface AddressAmount {
@@ -82,20 +77,31 @@ export class ConvertTransaction {
   }
 
   public getTransactionsRequest(req: GetTransactionsRequest): transaction_message_pb.GetTransactionsRequest {
-    const result: transaction_message_pb.GetTransactionsRequest = this.factory('transaction_message_pb.GetTransactionsRequest');
-    return result
-      .setChain(req.blockchain.valueOf())
+    const result: transaction_message_pb.GetTransactionsRequest = this.factory(
+      'transaction_message_pb.GetTransactionsRequest',
+    );
+
+    result
       .setAddress(this.common.pbAnyAddress(req.address))
-      .setCursor(req.cursor)
+      .setChain(req.blockchain.valueOf())
       .setLimit(req.limit)
       .setUnspentOnly(req.onlyUnspent);
+
+    if (req.cursor != null) {
+      result.setCursor(req.cursor);
+    }
+
+    return result;
   }
 
-  public subscribeTransactionsRequest(req: SubscribeTransactionsRequest): transaction_message_pb.SubscribeTransactionsRequest {
-    const result: transaction_message_pb.SubscribeTransactionsRequest = this.factory('transaction_message_pb.SubscribeTransactionsRequest');
-    return result
-        .setChain(req.blockchain.valueOf())
-        .setAddress(this.common.pbAnyAddress(req.address))
+  public subscribeTransactionsRequest(
+    req: SubscribeTransactionsRequest,
+  ): transaction_message_pb.SubscribeTransactionsRequest {
+    const result: transaction_message_pb.SubscribeTransactionsRequest = this.factory(
+      'transaction_message_pb.SubscribeTransactionsRequest',
+    );
+
+    return result.setChain(req.blockchain.valueOf()).setAddress(this.common.pbAnyAddress(req.address));
   }
 
   private static change(change: transaction_message_pb.Change): Change {
@@ -117,25 +123,21 @@ export class ConvertTransaction {
         block = this.common.blockInfo(resp.getBlock());
       }
 
-      const blockchain = resp.getChain().valueOf();
-      const changes = resp.getChangesList().map((value) => ConvertTransaction.change(value));
       const cursor = resp.getCursor();
-      const mempool = resp.getMempool();
-      const xpubIndex = resp.hasXpubIndex() ? resp.getXpubIndex().getValue() : undefined;
 
       return {
         block,
-        blockchain,
-        changes,
-        mempool,
-        xpubIndex,
         address: resp.getAddress().getAddress(),
+        blockchain: resp.getChain().valueOf(),
+        changes: resp.getChangesList().map((value) => ConvertTransaction.change(value)),
         cursor: cursor.length > 0 ? cursor : undefined,
         failed: resp.getFailed(),
+        mempool: resp.getMempool(),
         removed: resp.getRemoved(),
         txId: resp.getTxId(),
+        txIndexInBlock: block == null ? undefined : resp.getTxIndexInBlock(),
+        xpubIndex: resp.hasXpubIndex() ? resp.getXpubIndex().getValue() : undefined,
       };
     };
   }
-
 }
diff --git a/packages/node/package.json b/packages/node/package.json
index 5794280..437a220 100644
--- a/packages/node/package.json
+++ b/packages/node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@emeraldpay/api-node",
-  "version": "0.4.3",
+  "version": "0.4.4-dev",
   "description": "Node client for Emerald gRPC APIs",
   "license": "Apache-2.0",
   "main": "lib/index.js",
@@ -32,7 +32,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "@emeraldpay/api": "0.4.3",
+    "@emeraldpay/api": "0.4.4-dev",
     "@grpc/grpc-js": "^1.9.0",
     "google-protobuf": "^3.21.2",
     "protobufjs": "^7.2.4"
diff --git a/packages/web/package.json b/packages/web/package.json
index 90befc3..c0d18ae 100644
--- a/packages/web/package.json
+++ b/packages/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@emeraldpay/api-web",
-  "version": "0.4.3",
+  "version": "0.4.4-dev",
   "description": "Browser client for Emerald gRPC APIs",
   "license": "Apache-2.0",
   "main": "lib/index.js",
@@ -31,7 +31,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "@emeraldpay/api": "0.4.3",
+    "@emeraldpay/api": "0.4.4-dev",
     "google-protobuf": "^3.21.2",
     "grpc-web": "^1.4.2",
     "protobufjs": "^7.2.4"
diff --git a/yarn.lock b/yarn.lock
index 93ed023..17dc62c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -480,7 +480,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@emeraldpay/api-node@workspace:packages/node"
   dependencies:
-    "@emeraldpay/api": 0.4.3
+    "@emeraldpay/api": 0.4.4-dev
     "@grpc/grpc-js": ^1.9.0
     "@grpc/proto-loader": ^0.7.8
     "@types/google-protobuf": ^3.15.6
@@ -502,7 +502,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@emeraldpay/api-web@workspace:packages/web"
   dependencies:
-    "@emeraldpay/api": 0.4.3
+    "@emeraldpay/api": 0.4.4-dev
     "@types/google-protobuf": ^3.15.6
     "@types/jest": ^29.5.3
     google-protobuf: ^3.21.2
@@ -520,7 +520,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@emeraldpay/api@0.4.3, @emeraldpay/api@workspace:packages/core":
+"@emeraldpay/api@0.4.4-dev, @emeraldpay/api@workspace:packages/core":
   version: 0.0.0-use.local
   resolution: "@emeraldpay/api@workspace:packages/core"
   dependencies: