diff --git a/ios/Classes/frb_generated.h b/ios/Classes/frb_generated.h
index ef2dc6a..183ce1a 100644
--- a/ios/Classes/frb_generated.h
+++ b/ios/Classes/frb_generated.h
@@ -299,7 +299,8 @@ void frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_session_extrac
 
 WireSyncRust2DartDco frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_session_pj_uri_builder(struct wire_cst_ffi_active_session *that);
 
-WireSyncRust2DartDco frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_session_pj_url(struct wire_cst_ffi_active_session *that);
+void frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_session_pj_url(int64_t port_,
+                                                                                 struct wire_cst_ffi_active_session *that);
 
 void frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_session_process_res(int64_t port_,
                                                                                       struct wire_cst_ffi_active_session *that,
diff --git a/lib/receive/v2.dart b/lib/receive/v2.dart
index bb255ea..d70947c 100644
--- a/lib/receive/v2.dart
+++ b/lib/receive/v2.dart
@@ -48,7 +48,7 @@ class SessionInitializer extends FfiSessionInitializer {
     try {
       final res = await super.extractReq();
       final request = Request(
-        url: Url.fromStr(res.$1.url.asString()),
+        url: await Url.fromStr(res.$1.url.asString()),
         body: res.$1.body,
       );
       return (request, res.$2);
@@ -66,7 +66,7 @@ class ActiveSession extends FfiActiveSession {
     try {
       final res = await super.extractReq();
       final request = Request(
-        url: Url.fromStr(res.$1.url.asString()),
+        url: await Url.fromStr(res.$1.url.asString()),
         body: res.$1.body,
       );
       return (request, res.$2);
@@ -93,8 +93,8 @@ class ActiveSession extends FfiActiveSession {
   /// The contents of the `&pj=` query parameter including the base64url-encoded public key receiver subdirectory.
   /// This identifies a session at the payjoin directory server.
   @override
-  Url pjUrl() {
-    final res = super.pjUrl();
+  Future<Url> pjUrl() async {
+    final res = await super.pjUrl();
     return Url.fromStr(res.asString());
   }
 
@@ -310,7 +310,7 @@ class PayjoinProposal extends FfiV2PayjoinProposal {
     try {
       final res = await super.extractV2Req();
       final request = Request(
-        url: Url.fromStr(res.$1.url.asString()),
+        url: await Url.fromStr(res.$1.url.asString()),
         body: res.$1.body,
       );
       return (request, res.$2);
diff --git a/lib/send.dart b/lib/send.dart
index 59b998a..73b6560 100644
--- a/lib/send.dart
+++ b/lib/send.dart
@@ -81,7 +81,7 @@ class RequestContext extends FfiRequestContext {
     try {
       final res = await super.extractV1();
       final request = common.Request(
-        url: Url.fromStr((res.$1.url.asString())),
+        url: await Url.fromStr((res.$1.url.asString())),
         body: res.$1.body,
       );
       return (request, ContextV1._(field0: res.$2.field0));
@@ -99,7 +99,7 @@ class RequestContext extends FfiRequestContext {
         ohttpProxyUrl: ohttpProxyUrl,
       );
       final request = common.Request(
-        url: Url.fromStr((res.$1.url.asString())),
+        url: await Url.fromStr((res.$1.url.asString())),
         body: res.$1.body,
       );
       return (request, ContextV2._(field0: res.$2.field0));
diff --git a/lib/src/generated/api/receive.dart b/lib/src/generated/api/receive.dart
index b22e888..185e421 100644
--- a/lib/src/generated/api/receive.dart
+++ b/lib/src/generated/api/receive.dart
@@ -30,7 +30,8 @@ class FfiActiveSession {
         that: this,
       );
 
-  FfiUrl pjUrl() => core.instance.api.crateApiReceiveFfiActiveSessionPjUrl(
+  Future<FfiUrl> pjUrl() =>
+      core.instance.api.crateApiReceiveFfiActiveSessionPjUrl(
         that: this,
       );
 
diff --git a/lib/src/generated/frb_generated.dart b/lib/src/generated/frb_generated.dart
index 2243c5b..0a7a2d0 100644
--- a/lib/src/generated/frb_generated.dart
+++ b/lib/src/generated/frb_generated.dart
@@ -81,7 +81,8 @@ abstract class coreApi extends BaseApi {
   FfiPjUriBuilder crateApiReceiveFfiActiveSessionPjUriBuilder(
       {required FfiActiveSession that});
 
-  FfiUrl crateApiReceiveFfiActiveSessionPjUrl({required FfiActiveSession that});
+  Future<FfiUrl> crateApiReceiveFfiActiveSessionPjUrl(
+      {required FfiActiveSession that});
 
   Future<FfiV2UncheckedProposal?> crateApiReceiveFfiActiveSessionProcessRes(
       {required FfiActiveSession that,
@@ -650,12 +651,13 @@ class coreApiImpl extends coreApiImplPlatform implements coreApi {
       );
 
   @override
-  FfiUrl crateApiReceiveFfiActiveSessionPjUrl(
+  Future<FfiUrl> crateApiReceiveFfiActiveSessionPjUrl(
       {required FfiActiveSession that}) {
-    return handler.executeSync(SyncTask(
-      callFfi: () {
+    return handler.executeNormal(NormalTask(
+      callFfi: (port_) {
         var arg0 = cst_encode_box_autoadd_ffi_active_session(that);
-        return wire.wire__crate__api__receive__ffi_active_session_pj_url(arg0);
+        return wire.wire__crate__api__receive__ffi_active_session_pj_url(
+            port_, arg0);
       },
       codec: DcoCodec(
         decodeSuccessData: dco_decode_ffi_url,
diff --git a/lib/src/generated/frb_generated.io.dart b/lib/src/generated/frb_generated.io.dart
index 6fb64a4..668e41e 100644
--- a/lib/src/generated/frb_generated.io.dart
+++ b/lib/src/generated/frb_generated.io.dart
@@ -2689,23 +2689,24 @@ class coreWire implements BaseWire {
               WireSyncRust2DartDco Function(
                   ffi.Pointer<wire_cst_ffi_active_session>)>();
 
-  WireSyncRust2DartDco wire__crate__api__receive__ffi_active_session_pj_url(
+  void wire__crate__api__receive__ffi_active_session_pj_url(
+    int port_,
     ffi.Pointer<wire_cst_ffi_active_session> that,
   ) {
     return _wire__crate__api__receive__ffi_active_session_pj_url(
+      port_,
       that,
     );
   }
 
   late final _wire__crate__api__receive__ffi_active_session_pj_urlPtr = _lookup<
           ffi.NativeFunction<
-              WireSyncRust2DartDco Function(
-                  ffi.Pointer<wire_cst_ffi_active_session>)>>(
+              ffi.Void Function(
+                  ffi.Int64, ffi.Pointer<wire_cst_ffi_active_session>)>>(
       'frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_session_pj_url');
   late final _wire__crate__api__receive__ffi_active_session_pj_url =
       _wire__crate__api__receive__ffi_active_session_pj_urlPtr.asFunction<
-          WireSyncRust2DartDco Function(
-              ffi.Pointer<wire_cst_ffi_active_session>)>();
+          void Function(int, ffi.Pointer<wire_cst_ffi_active_session>)>();
 
   void wire__crate__api__receive__ffi_active_session_process_res(
     int port_,
diff --git a/lib/uri.dart b/lib/uri.dart
index ea3b416..c16b163 100644
--- a/lib/uri.dart
+++ b/lib/uri.dart
@@ -146,8 +146,9 @@ class PjUri extends FfiPjUri {
 
 class Url extends FfiUrl {
   Url._({required super.field0});
-  static Url fromStr(String uri) {
+  static Future<Url> fromStr(String uri) async {
     try {
+      await PConfig.initializeApp();
       final res = FfiUrl.fromStr(url: uri);
       return Url._(field0: res.field0);
     } on error.PayjoinError catch (e) {
diff --git a/rust/src/api/receive.rs b/rust/src/api/receive.rs
index 7341e68..3eb7ce1 100644
--- a/rust/src/api/receive.rs
+++ b/rust/src/api/receive.rs
@@ -300,7 +300,6 @@ impl FfiActiveSession {
         self.0.public_key()
     }
 
-    #[frb(sync)]
     pub fn pj_url(&self) -> FfiUrl {
         self.0.pj_url().into()
     }
diff --git a/rust/src/frb_generated.io.rs b/rust/src/frb_generated.io.rs
index bed73db..8b6b84d 100644
--- a/rust/src/frb_generated.io.rs
+++ b/rust/src/frb_generated.io.rs
@@ -1341,9 +1341,10 @@ pub extern "C" fn frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_s
 
 #[no_mangle]
 pub extern "C" fn frbgen_payjoin_flutter_wire__crate__api__receive__ffi_active_session_pj_url(
+    port_: i64,
     that: *mut wire_cst_ffi_active_session,
-) -> flutter_rust_bridge::for_generated::WireSyncRust2DartDco {
-    wire__crate__api__receive__ffi_active_session_pj_url_impl(that)
+) {
+    wire__crate__api__receive__ffi_active_session_pj_url_impl(port_, that)
 }
 
 #[no_mangle]
diff --git a/rust/src/frb_generated.rs b/rust/src/frb_generated.rs
index ef29fc2..ba2b042 100644
--- a/rust/src/frb_generated.rs
+++ b/rust/src/frb_generated.rs
@@ -119,21 +119,25 @@ fn wire__crate__api__receive__ffi_active_session_pj_uri_builder_impl(
     )
 }
 fn wire__crate__api__receive__ffi_active_session_pj_url_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
     that: impl CstDecode<crate::api::receive::FfiActiveSession>,
-) -> flutter_rust_bridge::for_generated::WireSyncRust2DartDco {
-    FLUTTER_RUST_BRIDGE_HANDLER.wrap_sync::<flutter_rust_bridge::for_generated::DcoCodec, _>(
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::DcoCodec, _, _>(
         flutter_rust_bridge::for_generated::TaskInfo {
             debug_name: "ffi_active_session_pj_url",
-            port: None,
-            mode: flutter_rust_bridge::for_generated::FfiCallMode::Sync,
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
         },
         move || {
             let api_that = that.cst_decode();
-            transform_result_dco::<_, _, ()>((move || {
-                let output_ok =
-                    Result::<_, ()>::Ok(crate::api::receive::FfiActiveSession::pj_url(&api_that))?;
-                Ok(output_ok)
-            })())
+            move |context| {
+                transform_result_dco::<_, _, ()>((move || {
+                    let output_ok = Result::<_, ()>::Ok(
+                        crate::api::receive::FfiActiveSession::pj_url(&api_that),
+                    )?;
+                    Ok(output_ok)
+                })())
+            }
         },
     )
 }