diff --git a/Sources/ZcashLightClientKit/Synchronizer.swift b/Sources/ZcashLightClientKit/Synchronizer.swift
index 2e1788c6..3c400f89 100644
--- a/Sources/ZcashLightClientKit/Synchronizer.swift
+++ b/Sources/ZcashLightClientKit/Synchronizer.swift
@@ -351,6 +351,11 @@ public protocol Synchronizer: AnyObject {
     /// - Throws: ZcashError when failures occur and related to `synchronizer.start(retry: Bool)`, it's the only throwing operation
     /// during the whole endpoint change.
     func switchTo(endpoint: LightWalletEndpoint) async throws
+    
+    /// Checks whether the given seed is relevant to any of the accounts in the wallet.
+    ///
+    /// - parameter seed: byte array of the seed
+    func isSeedRelevantToWallet(seed: [UInt8]) async throws -> Bool
 }
 
 public enum SyncStatus: Equatable {
diff --git a/Sources/ZcashLightClientKit/Synchronizer/SDKSynchronizer.swift b/Sources/ZcashLightClientKit/Synchronizer/SDKSynchronizer.swift
index a78c5f82..41657487 100644
--- a/Sources/ZcashLightClientKit/Synchronizer/SDKSynchronizer.swift
+++ b/Sources/ZcashLightClientKit/Synchronizer/SDKSynchronizer.swift
@@ -303,8 +303,8 @@ public class SDKSynchronizer: Synchronizer {
                uri,
                accountIndex: accountIndex
            )
-        } catch ZcashError.rustCreateToAddress(let e) {
-            throw ZcashError.rustProposeTransferFromURI(e)
+        } catch ZcashError.rustCreateToAddress(let error) {
+            throw ZcashError.rustProposeTransferFromURI(error)
         } catch {
             throw error
         }
@@ -604,6 +604,10 @@ public class SDKSynchronizer: Synchronizer {
         return subject.eraseToAnyPublisher()
     }
     
+    public func isSeedRelevantToWallet(seed: [UInt8]) async throws -> Bool {
+        try await initializer.rustBackend.isSeedRelevantToWallet(seed: seed)
+    }
+    
     // MARK: Server switch
 
     public func switchTo(endpoint: LightWalletEndpoint) async throws {
diff --git a/Tests/DarksideTests/PaymentURIFulfillmentTests.swift b/Tests/DarksideTests/PaymentURIFulfillmentTests.swift
index 22f54394..3da93841 100644
--- a/Tests/DarksideTests/PaymentURIFulfillmentTests.swift
+++ b/Tests/DarksideTests/PaymentURIFulfillmentTests.swift
@@ -315,6 +315,7 @@ class PaymentURIFulfillmentTests: ZcashTestCase {
          */
 
         let memo = "VGhpcyBpcyBhIHNpbXBsZSBtZW1vLg" // "This is a simple memo."
+        // swiftlint:disable:next line_length
         let paymentURI = "zcash:zecIsGreat17mg40levjezevuhdp5pqrd52zere7r7vrjgdwn5sj4xsqtm20euwahv9anxmwr3y3kmwuz8k55a?amount=0.0002&memo=\(memo)&message=Thank%20you%20for%20your%20purchase&label=Your%20Purchase"
 
         do {
diff --git a/Tests/TestUtils/Sourcery/GeneratedMocks/AutoMockable.generated.swift b/Tests/TestUtils/Sourcery/GeneratedMocks/AutoMockable.generated.swift
index 1cba8589..7fddaf26 100644
--- a/Tests/TestUtils/Sourcery/GeneratedMocks/AutoMockable.generated.swift
+++ b/Tests/TestUtils/Sourcery/GeneratedMocks/AutoMockable.generated.swift
@@ -1800,6 +1800,30 @@ class SynchronizerMock: Synchronizer {
         try await switchToEndpointClosure!(endpoint)
     }
 
+    // MARK: - isSeedRelevantToWallet
+
+    var isSeedRelevantToWalletSeedThrowableError: Error?
+    var isSeedRelevantToWalletSeedCallsCount = 0
+    var isSeedRelevantToWalletSeedCalled: Bool {
+        return isSeedRelevantToWalletSeedCallsCount > 0
+    }
+    var isSeedRelevantToWalletSeedReceivedSeed: [UInt8]?
+    var isSeedRelevantToWalletSeedReturnValue: Bool!
+    var isSeedRelevantToWalletSeedClosure: (([UInt8]) async throws -> Bool)?
+
+    func isSeedRelevantToWallet(seed: [UInt8]) async throws -> Bool {
+        if let error = isSeedRelevantToWalletSeedThrowableError {
+            throw error
+        }
+        isSeedRelevantToWalletSeedCallsCount += 1
+        isSeedRelevantToWalletSeedReceivedSeed = seed
+        if let closure = isSeedRelevantToWalletSeedClosure {
+            return try await closure(seed)
+        } else {
+            return isSeedRelevantToWalletSeedReturnValue
+        }
+    }
+
 }
 class TransactionRepositoryMock: TransactionRepository {