diff --git a/ios/Classes/frb_generated.h b/ios/Classes/frb_generated.h
index b2589a9..d62d8d4 100644
--- a/ios/Classes/frb_generated.h
+++ b/ios/Classes/frb_generated.h
@@ -80,6 +80,7 @@ typedef struct wire_cst_tx {
   uint64_t fee;
   uint32_t *height;
   struct wire_cst_list_prim_u_8_strict *unblinded_url;
+  uintptr_t vsize;
 } wire_cst_tx;
 
 typedef struct wire_cst_list_tx {
diff --git a/lib/src/generated/api/types.dart b/lib/src/generated/api/types.dart
index 103ac65..c8a9127 100644
--- a/lib/src/generated/api/types.dart
+++ b/lib/src/generated/api/types.dart
@@ -107,6 +107,7 @@ class Tx with _$Tx {
     required int fee,
     int? height,
     required String unblindedUrl,
+    required int vsize,
   }) = _Tx;
 }
 
diff --git a/lib/src/generated/api/types.freezed.dart b/lib/src/generated/api/types.freezed.dart
index ccc6af0..ab90a9a 100644
--- a/lib/src/generated/api/types.freezed.dart
+++ b/lib/src/generated/api/types.freezed.dart
@@ -444,6 +444,7 @@ mixin _$Tx {
   int get fee => throw _privateConstructorUsedError;
   int? get height => throw _privateConstructorUsedError;
   String get unblindedUrl => throw _privateConstructorUsedError;
+  int get vsize => throw _privateConstructorUsedError;
 
   @JsonKey(ignore: true)
   $TxCopyWith<Tx> get copyWith => throw _privateConstructorUsedError;
@@ -463,7 +464,8 @@ abstract class $TxCopyWith<$Res> {
       List<TxOut> inputs,
       int fee,
       int? height,
-      String unblindedUrl});
+      String unblindedUrl,
+      int vsize});
 }
 
 /// @nodoc
@@ -487,6 +489,7 @@ class _$TxCopyWithImpl<$Res, $Val extends Tx> implements $TxCopyWith<$Res> {
     Object? fee = null,
     Object? height = freezed,
     Object? unblindedUrl = null,
+    Object? vsize = null,
   }) {
     return _then(_value.copyWith(
       timestamp: freezed == timestamp
@@ -525,6 +528,10 @@ class _$TxCopyWithImpl<$Res, $Val extends Tx> implements $TxCopyWith<$Res> {
           ? _value.unblindedUrl
           : unblindedUrl // ignore: cast_nullable_to_non_nullable
               as String,
+      vsize: null == vsize
+          ? _value.vsize
+          : vsize // ignore: cast_nullable_to_non_nullable
+              as int,
     ) as $Val);
   }
 }
@@ -544,7 +551,8 @@ abstract class _$$TxImplCopyWith<$Res> implements $TxCopyWith<$Res> {
       List<TxOut> inputs,
       int fee,
       int? height,
-      String unblindedUrl});
+      String unblindedUrl,
+      int vsize});
 }
 
 /// @nodoc
@@ -565,6 +573,7 @@ class __$$TxImplCopyWithImpl<$Res> extends _$TxCopyWithImpl<$Res, _$TxImpl>
     Object? fee = null,
     Object? height = freezed,
     Object? unblindedUrl = null,
+    Object? vsize = null,
   }) {
     return _then(_$TxImpl(
       timestamp: freezed == timestamp
@@ -603,6 +612,10 @@ class __$$TxImplCopyWithImpl<$Res> extends _$TxCopyWithImpl<$Res, _$TxImpl>
           ? _value.unblindedUrl
           : unblindedUrl // ignore: cast_nullable_to_non_nullable
               as String,
+      vsize: null == vsize
+          ? _value.vsize
+          : vsize // ignore: cast_nullable_to_non_nullable
+              as int,
     ));
   }
 }
@@ -619,7 +632,8 @@ class _$TxImpl implements _Tx {
       required final List<TxOut> inputs,
       required this.fee,
       this.height,
-      required this.unblindedUrl})
+      required this.unblindedUrl,
+      required this.vsize})
       : _balances = balances,
         _outputs = outputs,
         _inputs = inputs;
@@ -660,10 +674,12 @@ class _$TxImpl implements _Tx {
   final int? height;
   @override
   final String unblindedUrl;
+  @override
+  final int vsize;
 
   @override
   String toString() {
-    return 'Tx(timestamp: $timestamp, kind: $kind, balances: $balances, txid: $txid, outputs: $outputs, inputs: $inputs, fee: $fee, height: $height, unblindedUrl: $unblindedUrl)';
+    return 'Tx(timestamp: $timestamp, kind: $kind, balances: $balances, txid: $txid, outputs: $outputs, inputs: $inputs, fee: $fee, height: $height, unblindedUrl: $unblindedUrl, vsize: $vsize)';
   }
 
   @override
@@ -681,7 +697,8 @@ class _$TxImpl implements _Tx {
             (identical(other.fee, fee) || other.fee == fee) &&
             (identical(other.height, height) || other.height == height) &&
             (identical(other.unblindedUrl, unblindedUrl) ||
-                other.unblindedUrl == unblindedUrl));
+                other.unblindedUrl == unblindedUrl) &&
+            (identical(other.vsize, vsize) || other.vsize == vsize));
   }
 
   @override
@@ -695,7 +712,8 @@ class _$TxImpl implements _Tx {
       const DeepCollectionEquality().hash(_inputs),
       fee,
       height,
-      unblindedUrl);
+      unblindedUrl,
+      vsize);
 
   @JsonKey(ignore: true)
   @override
@@ -714,7 +732,8 @@ abstract class _Tx implements Tx {
       required final List<TxOut> inputs,
       required final int fee,
       final int? height,
-      required final String unblindedUrl}) = _$TxImpl;
+      required final String unblindedUrl,
+      required final int vsize}) = _$TxImpl;
 
   @override
   int? get timestamp;
@@ -735,6 +754,8 @@ abstract class _Tx implements Tx {
   @override
   String get unblindedUrl;
   @override
+  int get vsize;
+  @override
   @JsonKey(ignore: true)
   _$$TxImplCopyWith<_$TxImpl> get copyWith =>
       throw _privateConstructorUsedError;
diff --git a/lib/src/generated/frb_generated.dart b/lib/src/generated/frb_generated.dart
index c846a5d..3ed623f 100644
--- a/lib/src/generated/frb_generated.dart
+++ b/lib/src/generated/frb_generated.dart
@@ -854,8 +854,8 @@ class LwkCoreApiImpl extends LwkCoreApiImplPlatform implements LwkCoreApi {
   Tx dco_decode_tx(dynamic raw) {
     // Codec=Dco (DartCObject based), see doc to use other codecs
     final arr = raw as List<dynamic>;
-    if (arr.length != 9)
-      throw Exception('unexpected arr length: expect 9 but see ${arr.length}');
+    if (arr.length != 10)
+      throw Exception('unexpected arr length: expect 10 but see ${arr.length}');
     return Tx(
       timestamp: dco_decode_opt_box_autoadd_u_32(arr[0]),
       kind: dco_decode_String(arr[1]),
@@ -866,6 +866,7 @@ class LwkCoreApiImpl extends LwkCoreApiImplPlatform implements LwkCoreApi {
       fee: dco_decode_u_64(arr[6]),
       height: dco_decode_opt_box_autoadd_u_32(arr[7]),
       unblindedUrl: dco_decode_String(arr[8]),
+      vsize: dco_decode_usize(arr[9]),
     );
   }
 
@@ -1137,6 +1138,7 @@ class LwkCoreApiImpl extends LwkCoreApiImplPlatform implements LwkCoreApi {
     var var_fee = sse_decode_u_64(deserializer);
     var var_height = sse_decode_opt_box_autoadd_u_32(deserializer);
     var var_unblindedUrl = sse_decode_String(deserializer);
+    var var_vsize = sse_decode_usize(deserializer);
     return Tx(
         timestamp: var_timestamp,
         kind: var_kind,
@@ -1146,7 +1148,8 @@ class LwkCoreApiImpl extends LwkCoreApiImplPlatform implements LwkCoreApi {
         inputs: var_inputs,
         fee: var_fee,
         height: var_height,
-        unblindedUrl: var_unblindedUrl);
+        unblindedUrl: var_unblindedUrl,
+        vsize: var_vsize);
   }
 
   @protected
@@ -1449,6 +1452,7 @@ class LwkCoreApiImpl extends LwkCoreApiImplPlatform implements LwkCoreApi {
     sse_encode_u_64(self.fee, serializer);
     sse_encode_opt_box_autoadd_u_32(self.height, serializer);
     sse_encode_String(self.unblindedUrl, serializer);
+    sse_encode_usize(self.vsize, serializer);
   }
 
   @protected
diff --git a/lib/src/generated/frb_generated.io.dart b/lib/src/generated/frb_generated.io.dart
index 4a61c61..fd103d3 100644
--- a/lib/src/generated/frb_generated.io.dart
+++ b/lib/src/generated/frb_generated.io.dart
@@ -395,6 +395,7 @@ abstract class LwkCoreApiImplPlatform extends BaseApiImpl<LwkCoreWire> {
     wireObj.fee = cst_encode_u_64(apiObj.fee);
     wireObj.height = cst_encode_opt_box_autoadd_u_32(apiObj.height);
     wireObj.unblinded_url = cst_encode_String(apiObj.unblindedUrl);
+    wireObj.vsize = cst_encode_usize(apiObj.vsize);
   }
 
   @protected
@@ -1290,6 +1291,9 @@ final class wire_cst_tx extends ffi.Struct {
   external ffi.Pointer<ffi.Uint32> height;
 
   external ffi.Pointer<wire_cst_list_prim_u_8_strict> unblinded_url;
+
+  @ffi.UintPtr()
+  external int vsize;
 }
 
 final class wire_cst_list_tx extends ffi.Struct {
diff --git a/lib/src/generated/frb_generated.web.dart b/lib/src/generated/frb_generated.web.dart
index 0e25d6f..c793581 100644
--- a/lib/src/generated/frb_generated.web.dart
+++ b/lib/src/generated/frb_generated.web.dart
@@ -356,7 +356,8 @@ abstract class LwkCoreApiImplPlatform extends BaseApiImpl<LwkCoreWire> {
       cst_encode_list_tx_out(raw.inputs),
       cst_encode_u_64(raw.fee),
       cst_encode_opt_box_autoadd_u_32(raw.height),
-      cst_encode_String(raw.unblindedUrl)
+      cst_encode_String(raw.unblindedUrl),
+      cst_encode_usize(raw.vsize)
     ];
   }
 
diff --git a/macos/Classes/frb_generated.h b/macos/Classes/frb_generated.h
index b2589a9..d62d8d4 100644
--- a/macos/Classes/frb_generated.h
+++ b/macos/Classes/frb_generated.h
@@ -80,6 +80,7 @@ typedef struct wire_cst_tx {
   uint64_t fee;
   uint32_t *height;
   struct wire_cst_list_prim_u_8_strict *unblinded_url;
+  uintptr_t vsize;
 } wire_cst_tx;
 
 typedef struct wire_cst_list_tx {
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 9ea7490..52e572f 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -437,9 +437,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.6"
+version = "4.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9689a29b593160de5bc4aacab7b5d54fb52231de70122626c178e6a368994c7"
+checksum = "5db83dced34638ad474f39f250d7fea9598bdd239eaced1bdf45d597da0f433f"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -447,9 +447,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.6"
+version = "4.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e5387378c84f6faa26890ebf9f0a92989f8873d4d380467bcd0d8d8620424df"
+checksum = "f7e204572485eb3fbf28f871612191521df159bc3e15a9f5064c66dba3a8c05f"
 dependencies = [
  "anstream",
  "anstyle",
@@ -624,6 +624,17 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "displaydoc"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "either"
 version = "1.12.0"
@@ -1118,12 +1129,12 @@ dependencies = [
 
 [[package]]
 name = "http-body-util"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0475f8b2ac86659c21b64320d5d653f9efe42acd2a4e560073ec61a155a34f1d"
+checksum = "793429d76616a256bcb62c2a2ec2bed781c8307e797e2598c50010f2bee2544f"
 dependencies = [
  "bytes",
- "futures-core",
+ "futures-util",
  "http",
  "http-body",
  "pin-project-lite",
@@ -1131,9 +1142,9 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.8.0"
+version = "1.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
+checksum = "9f3935c160d00ac752e09787e6e6bfc26494c2183cc922f1bc678a60d4733bc2"
 
 [[package]]
 name = "hyper"
@@ -1215,6 +1226,124 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "icu_collections"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db2fa452206ebee18c4b5c2274dbf1de17008e874b4dc4f0aea9d01ca79e4526"
+dependencies = [
+ "displaydoc",
+ "yoke",
+ "zerofrom",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_locid"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13acbb8371917fc971be86fc8057c41a64b521c184808a698c02acc242dbf637"
+dependencies = [
+ "displaydoc",
+ "litemap",
+ "tinystr",
+ "writeable",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_locid_transform"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "01d11ac35de8e40fdeda00d9e1e9d92525f3f9d887cdd7aa81d727596788b54e"
+dependencies = [
+ "displaydoc",
+ "icu_locid",
+ "icu_locid_transform_data",
+ "icu_provider",
+ "tinystr",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_locid_transform_data"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fdc8ff3388f852bede6b579ad4e978ab004f139284d7b28715f773507b946f6e"
+
+[[package]]
+name = "icu_normalizer"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19ce3e0da2ec68599d193c93d088142efd7f9c5d6fc9b803774855747dc6a84f"
+dependencies = [
+ "displaydoc",
+ "icu_collections",
+ "icu_normalizer_data",
+ "icu_properties",
+ "icu_provider",
+ "smallvec",
+ "utf16_iter",
+ "utf8_iter",
+ "write16",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_normalizer_data"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8cafbf7aa791e9b22bec55a167906f9e1215fd475cd22adfcf660e03e989516"
+
+[[package]]
+name = "icu_properties"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f8ac670d7422d7f76b32e17a5db556510825b29ec9154f235977c9caba61036"
+dependencies = [
+ "displaydoc",
+ "icu_collections",
+ "icu_locid_transform",
+ "icu_properties_data",
+ "icu_provider",
+ "tinystr",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_properties_data"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67a8effbc3dd3e4ba1afa8ad918d5684b8868b3b26500753effea8d2eed19569"
+
+[[package]]
+name = "icu_provider"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ed421c8a8ef78d3e2dbc98a973be2f3770cb42b606e3ab18d6237c4dfde68d9"
+dependencies = [
+ "displaydoc",
+ "icu_locid",
+ "icu_provider_macros",
+ "stable_deref_trait",
+ "tinystr",
+ "writeable",
+ "yoke",
+ "zerofrom",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_provider_macros"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ec89e9337638ecdc08744df490b221a7399bf8d164eb52a665454e60e075ad6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "idna"
 version = "0.4.0"
@@ -1227,12 +1356,14 @@ dependencies = [
 
 [[package]]
 name = "idna"
-version = "0.5.0"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "634d9b1461af396cad843f47fdba5597a4f9e6ddd4bfb6ff5d85028c25cb12f6"
+checksum = "4716a3a0933a1d01c2f72450e89596eb51dd34ef3c211ccd875acdf1f8fe47ed"
 dependencies = [
- "unicode-bidi",
- "unicode-normalization",
+ "icu_normalizer",
+ "icu_properties",
+ "smallvec",
+ "utf8_iter",
 ]
 
 [[package]]
@@ -1417,6 +1548,12 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
+[[package]]
+name = "litemap"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "643cb0b8d4fcc284004d5fd0d67ccf61dfffadb7f75e1e71bc420f4688a3a704"
+
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -2267,6 +2404,12 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
 
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
 [[package]]
 name = "strsim"
 version = "0.11.1"
@@ -2326,6 +2469,17 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
 
+[[package]]
+name = "synstructure"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8af7666ab7b6390ab78131fb5b0fce11d6b7a6951602017c35fa82800708971"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "system-configuration"
 version = "0.5.1"
@@ -2388,6 +2542,16 @@ dependencies = [
  "num_cpus",
 ]
 
+[[package]]
+name = "tinystr"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9117f5d4db391c1cf6927e7bea3db74b9a1c1add8f7eda9ffd5364f40f57b82f"
+dependencies = [
+ "displaydoc",
+ "zerovec",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -2607,15 +2771,27 @@ checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
 [[package]]
 name = "url"
-version = "2.5.0"
+version = "2.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31e6302e3bb753d46e83516cae55ae196fc0c309407cf11ab35cc51a4c2a4633"
+checksum = "f7c25da092f0a868cdf09e8674cd3b7ef3a7d92a24253e663a2fb85e2496de56"
 dependencies = [
  "form_urlencoded",
- "idna 0.5.0",
+ "idna 1.0.0",
  "percent-encoding",
 ]
 
+[[package]]
+name = "utf16_iter"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8232dd3cdaed5356e0f716d285e4b40b932ac434100fe9b7e0e8e935b9e6246"
+
+[[package]]
+name = "utf8_iter"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
+
 [[package]]
 name = "utf8parse"
 version = "0.2.2"
@@ -2957,6 +3133,18 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "write16"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1890f4022759daae28ed4fe62859b1236caebfc61ede2f63ed4e695f3f6d936"
+
+[[package]]
+name = "writeable"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
+
 [[package]]
 name = "yaml-rust"
 version = "0.4.5"
@@ -2966,8 +3154,75 @@ dependencies = [
  "linked-hash-map",
 ]
 
+[[package]]
+name = "yoke"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c5b1314b079b0930c31e3af543d8ee1757b1951ae1e1565ec704403a7240ca5"
+dependencies = [
+ "serde",
+ "stable_deref_trait",
+ "yoke-derive",
+ "zerofrom",
+]
+
+[[package]]
+name = "yoke-derive"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28cc31741b18cb6f1d5ff12f5b7523e3d6eb0852bbbad19d73905511d9849b95"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+ "synstructure",
+]
+
+[[package]]
+name = "zerofrom"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ec111ce797d0e0784a1116d0ddcdbea84322cd79e5d5ad173daeba4f93ab55"
+dependencies = [
+ "zerofrom-derive",
+]
+
+[[package]]
+name = "zerofrom-derive"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ea7b4a3637ea8669cedf0f1fd5c286a17f3de97b8dd5a70a6c167a1730e63a5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+ "synstructure",
+]
+
 [[package]]
 name = "zeroize"
 version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
+
+[[package]]
+name = "zerovec"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bb2cc8827d6c0994478a15c53f374f46fbd41bea663d809b14744bc42e6b109c"
+dependencies = [
+ "yoke",
+ "zerofrom",
+ "zerovec-derive",
+]
+
+[[package]]
+name = "zerovec-derive"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97cf56601ee5052b4417d90c8755c6683473c926039908196cf35d99f893ebe7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
diff --git a/rust/src/api/types.rs b/rust/src/api/types.rs
index 9e238a0..2a95245 100644
--- a/rust/src/api/types.rs
+++ b/rust/src/api/types.rs
@@ -209,6 +209,7 @@ pub struct Tx {
     pub fee: u64,
     pub height: Option<u32>,
     pub unblinded_url: String,
+    pub vsize: usize,
 }
 
 impl From<WalletTx> for Tx {
@@ -269,6 +270,7 @@ impl From<WalletTx> for Tx {
             timestamp: wallet_tx.timestamp,
             height: wallet_tx.height,
             unblinded_url: wallet_tx.unblinded_url("").clone(),
+            vsize: wallet_tx.tx.vsize(),
         }
     }
 }
diff --git a/rust/src/api/wallet.rs b/rust/src/api/wallet.rs
index b9cc5bc..9e760b8 100644
--- a/rust/src/api/wallet.rs
+++ b/rust/src/api/wallet.rs
@@ -237,24 +237,42 @@ impl Wallet {
 #[cfg(test)]
 mod tests {
 
+    use std::{thread, time::Duration};
+
     use super::*;
     #[test]
     fn testable_wallets() {
         let mnemonic =
-            "bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon";
-        let electrum_url = "blockstream.info:465".to_string();
-        let network = Network::Testnet;
+            "umbrella response wide outer mystery drastic crew festival poet coconut error act";
+        let electrum_url = "les.bullbitcoin.com:995".to_string();
+        let network = Network::Mainnet;
         let desc = Descriptor::new_confidential(network, mnemonic.to_string()).expect("");
         let wallet = Wallet::init(network, "/tmp/lwk".to_string(), desc).expect("");
-        let _ = wallet.sync(electrum_url);
+        let _ = wallet.sync(electrum_url.clone());
         let _txs = wallet.txs();
         for tx in _txs.unwrap(){
             println!("{:?}\n{:?}\n{:?}", tx.balances, tx.timestamp, tx.height)
         }
         let balances = wallet.balances();
         let address = wallet.address_last_unused();
-        println!("{:#?}", address);
-        println!("{:#?}", balances);
+        // println!("{:#?}", address);
+        // println!("{:#?}", balances);
+        // let out_address = "lq1qqdvmhsrn8fehfurv0yzgve2xfhrfxj9yax7t6wymzuvfj2w2y49v4jf3730067gp3xhkhw73083tvx3xryasvf32pe06sajwu".to_string();
+        // let pset = wallet.build_lbtc_tx(0, out_address, 1000.0, true).unwrap();
+        // let signed = wallet.sign_tx(network, pset, mnemonic.to_string()).unwrap();
+        // let _ = Wallet::broadcast_tx(electrum_url.clone(), signed).unwrap();
+        // let _ = wallet.sync(electrum_url.clone());
+        // let _txs = wallet.txs();
+        // for tx in _txs.unwrap(){
+        //     println!("{:?}\n{:?}\n{:?}", tx.balances, tx.timestamp, tx.height)
+        // }
+        // thread::sleep(Duration::from_secs(60));
+        // let _ = wallet.sync(electrum_url.clone());
+        // let _txs = wallet.txs();
+        // for tx in _txs.unwrap(){
+        //     println!("{:?}\n{:?}\n{:?}", tx.balances, tx.timestamp, tx.height)
+        // }
+
     }
     #[test]
     fn test_broadcast() {
diff --git a/rust/src/frb_generated.io.rs b/rust/src/frb_generated.io.rs
index c4f93e1..e805776 100644
--- a/rust/src/frb_generated.io.rs
+++ b/rust/src/frb_generated.io.rs
@@ -175,6 +175,7 @@ impl CstDecode<crate::api::types::Tx> for wire_cst_tx {
             fee: self.fee.cst_decode(),
             height: self.height.cst_decode(),
             unblinded_url: self.unblinded_url.cst_decode(),
+            vsize: self.vsize.cst_decode(),
         }
     }
 }
@@ -307,6 +308,7 @@ impl NewWithNullPtr for wire_cst_tx {
             fee: Default::default(),
             height: core::ptr::null_mut(),
             unblinded_url: core::ptr::null_mut(),
+            vsize: Default::default(),
         }
     }
 }
@@ -695,6 +697,7 @@ pub struct wire_cst_tx {
     fee: u64,
     height: *mut u32,
     unblinded_url: *mut wire_cst_list_prim_u_8_strict,
+    vsize: usize,
 }
 #[repr(C)]
 #[derive(Clone, Copy)]
diff --git a/rust/src/frb_generated.rs b/rust/src/frb_generated.rs
index 38632ba..b344761 100644
--- a/rust/src/frb_generated.rs
+++ b/rust/src/frb_generated.rs
@@ -748,6 +748,7 @@ impl SseDecode for crate::api::types::Tx {
         let mut var_fee = <u64>::sse_decode(deserializer);
         let mut var_height = <Option<u32>>::sse_decode(deserializer);
         let mut var_unblindedUrl = <String>::sse_decode(deserializer);
+        let mut var_vsize = <usize>::sse_decode(deserializer);
         return crate::api::types::Tx {
             timestamp: var_timestamp,
             kind: var_kind,
@@ -758,6 +759,7 @@ impl SseDecode for crate::api::types::Tx {
             fee: var_fee,
             height: var_height,
             unblinded_url: var_unblindedUrl,
+            vsize: var_vsize,
         };
     }
 }
@@ -1007,6 +1009,7 @@ impl flutter_rust_bridge::IntoDart for crate::api::types::Tx {
             self.fee.into_into_dart().into_dart(),
             self.height.into_into_dart().into_dart(),
             self.unblinded_url.into_into_dart().into_dart(),
+            self.vsize.into_into_dart().into_dart(),
         ]
         .into_dart()
     }
@@ -1245,6 +1248,7 @@ impl SseEncode for crate::api::types::Tx {
         <u64>::sse_encode(self.fee, serializer);
         <Option<u32>>::sse_encode(self.height, serializer);
         <String>::sse_encode(self.unblinded_url, serializer);
+        <usize>::sse_encode(self.vsize, serializer);
     }
 }
 
diff --git a/rust/src/frb_generated.web.rs b/rust/src/frb_generated.web.rs
index 10cca26..cc5f9d0 100644
--- a/rust/src/frb_generated.web.rs
+++ b/rust/src/frb_generated.web.rs
@@ -211,8 +211,8 @@ impl CstDecode<crate::api::types::Tx>
             .unwrap();
         assert_eq!(
             self_.length(),
-            9,
-            "Expected 9 elements, got {}",
+            10,
+            "Expected 10 elements, got {}",
             self_.length()
         );
         crate::api::types::Tx {
@@ -225,6 +225,7 @@ impl CstDecode<crate::api::types::Tx>
             fee: self_.get(6).cst_decode(),
             height: self_.get(7).cst_decode(),
             unblinded_url: self_.get(8).cst_decode(),
+            vsize: self_.get(9).cst_decode(),
         }
     }
 }
diff --git a/test/lwk_root_test.dart b/test/lwk_root_test.dart
index 48e75f5..2308410 100644
--- a/test/lwk_root_test.dart
+++ b/test/lwk_root_test.dart
@@ -8,13 +8,13 @@ void main() {
     test('Wallet Flow', () async {
       await LibLwk.init();
       const mnemonic =
-          "bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon bacon";
-      const network = Network.testnet;
-      const electrumUrl = 'blockstream.info:465';
+          "umbrella response wide outer mystery drastic crew festival poet coconut error act";
+      const network = Network.mainnet;
+      const electrumUrl = 'les.bullbitcoin.com:995';
       const dbPath = '/tmp/lwk-darti';
       const outAmount = 10000;
-      const outAddress =
-          "tlq1qqt4hjkl6sug5ld89sdaekt7ew04va8w7c63adw07l33vcx86vpj5th3w7rkdnckmfpraufnnrfcep4thqt6024phuav99djeu";
+      // const outAddress =
+      //     "tlq1qqt4hjkl6sug5ld89sdaekt7ew04va8w7c63adw07l33vcx86vpj5th3w7rkdnckmfpraufnnrfcep4thqt6024phuav99djeu";
       const feeRate = 1000.0;
       final descriptor = await Descriptor.newConfidential(
         network: network,
@@ -35,28 +35,28 @@ void main() {
       for (final tx in txs) {
         print('${tx.txid}:${tx.balances} ${tx.timestamp}');
       }
-      final pset = await wallet.buildLbtcTx(
-        sats: outAmount,
-        outAddress: outAddress,
-        feeRate: feeRate,
-        drain: false,
-      );
-      final decodedPset = await wallet.decodeTx(pset: pset);
-      print(
-          "Amount: ${decodedPset.balances} , Fee: ${decodedPset.absoluteFees}");
-      final signedTxBytes =
-          await wallet.signTx(network: network, pset: pset, mnemonic: mnemonic);
-      final tx = await Wallet.broadcastTx(
-          electrumUrl: electrumUrl, txBytes: signedTxBytes);
-      print(tx);
-      await wallet.sync(electrumUrl: electrumUrl);
-      final postBalance = await wallet.balances();
-      print('Post Balance: ${postBalance}');
-      final getUnspendUtxos = await wallet.utxos();
-      print('Unspent Utxos: $getUnspendUtxos');
-      final signedPset = await wallet.signedPsetWithExtraDetails(
-          network: network, pset: pset, mnemonic: mnemonic);
-      print(signedPset);
+      // final pset = await wallet.buildLbtcTx(
+      //   sats: outAmount,
+      //   outAddress: outAddress,
+      //   feeRate: feeRate,
+      //   drain: false,
+      // );
+      // final decodedPset = await wallet.decodeTx(pset: pset);
+      // print(
+      //     "Amount: ${decodedPset.balances} , Fee: ${decodedPset.absoluteFees}");
+      // final signedTxBytes =
+      //     await wallet.signTx(network: network, pset: pset, mnemonic: mnemonic);
+      // final tx = await Wallet.broadcastTx(
+      //     electrumUrl: electrumUrl, txBytes: signedTxBytes);
+      // print(tx);
+      // await wallet.sync(electrumUrl: electrumUrl);
+      // final postBalance = await wallet.balances();
+      // print('Post Balance: ${postBalance}');
+      // final getUnspendUtxos = await wallet.utxos();
+      // print('Unspent Utxos: $getUnspendUtxos');
+      // final signedPset = await wallet.signedPsetWithExtraDetails(
+      //     network: network, pset: pset, mnemonic: mnemonic);
+      // print(signedPset);
     });
   });
 }