diff --git a/Example/IntegrationTests/Chat/ChatTests.swift b/Example/IntegrationTests/Chat/ChatTests.swift
index 03d9be7be..4c305a88f 100644
--- a/Example/IntegrationTests/Chat/ChatTests.swift
+++ b/Example/IntegrationTests/Chat/ChatTests.swift
@@ -29,8 +29,8 @@ final class ChatTests: XCTestCase {
         let inviteExpectation = expectation(description: "invitation expectation")
         let inviteeAccount = Account(chainIdentifier: "eip155:1", address: "0x3627523167367216556273151")!
         let inviterAccount = Account(chainIdentifier: "eip155:1", address: "0x36275231673672234423f")!
-        let pubKey = try! await invitee.register(account: inviteeAccount)
-        try! await inviter.invite(publicKey: pubKey, peerAccount: inviteeAccount, openingMessage: "", account: inviterAccount)
+        try! await invitee.register(account: inviteeAccount)
+        try! await inviter.invite(peerAccount: inviteeAccount, openingMessage: "", account: inviterAccount)
         invitee.invitePublisher.sink { _ in
             inviteExpectation.fulfill()
         }.store(in: &publishers)
@@ -44,9 +44,8 @@ final class ChatTests: XCTestCase {
         let inviterAccount = Account(chainIdentifier: "eip155:1", address: "0x36275231673672234423f")!
 
         Task(priority: .high) {
-            let pubKey = try! await invitee.register(account: inviteeAccount)
-
-            try! await inviter.invite(publicKey: pubKey, peerAccount: inviteeAccount, openingMessage: "opening message", account: inviterAccount)
+            try! await invitee.register(account: inviteeAccount)
+            try! await inviter.invite(peerAccount: inviteeAccount, openingMessage: "opening message", account: inviterAccount)
         }
 
         invitee.invitePublisher.sink { [unowned self] invite in
@@ -72,8 +71,8 @@ final class ChatTests: XCTestCase {
         let inviterAccount = Account(chainIdentifier: "eip155:1", address: "0x36275231673672234423f")!
 
         Task(priority: .high) {
-            let pubKey = try! await invitee.register(account: inviteeAccount)
-            try! await inviter.invite(publicKey: pubKey, peerAccount: inviteeAccount, openingMessage: "opening message", account: inviterAccount)
+            try! await invitee.register(account: inviteeAccount)
+            try! await inviter.invite(peerAccount: inviteeAccount, openingMessage: "opening message", account: inviterAccount)
         }
 
         invitee.invitePublisher.sink { [unowned self] invite in
diff --git a/Example/Showcase/Classes/DomainLayer/Chat/ChatService.swift b/Example/Showcase/Classes/DomainLayer/Chat/ChatService.swift
index a98e1902e..991c06c66 100644
--- a/Example/Showcase/Classes/DomainLayer/Chat/ChatService.swift
+++ b/Example/Showcase/Classes/DomainLayer/Chat/ChatService.swift
@@ -53,8 +53,8 @@ final class ChatService {
         try await client.reject(inviteId: invite.id)
     }
 
-    func invite(peerPubkey publicKey: String, peerAccount: Account, message: String, selfAccount: Account) async throws {
-        try await client.invite(publicKey: publicKey, peerAccount: peerAccount, openingMessage: message, account: selfAccount)
+    func invite(peerAccount: Account, message: String, selfAccount: Account) async throws {
+        try await client.invite(peerAccount: peerAccount, openingMessage: message, account: selfAccount)
     }
 
     func register(account: Account) async throws {
diff --git a/Example/Showcase/Classes/PresentationLayer/Chat/Invite/InviteInteractor.swift b/Example/Showcase/Classes/PresentationLayer/Chat/Invite/InviteInteractor.swift
index e51575584..26af501c6 100644
--- a/Example/Showcase/Classes/PresentationLayer/Chat/Invite/InviteInteractor.swift
+++ b/Example/Showcase/Classes/PresentationLayer/Chat/Invite/InviteInteractor.swift
@@ -6,7 +6,6 @@ final class InviteInteractor {
     }
 
     func invite(peerAccount: Account, message: String, selfAccount: Account) async {
-        let publicKey = try! await chatService.resolve(account: peerAccount)
-        try! await chatService.invite(peerPubkey: publicKey, peerAccount: peerAccount, message: message, selfAccount: selfAccount)
+        try! await chatService.invite(peerAccount: peerAccount, message: message, selfAccount: selfAccount)
     }
 }
diff --git a/Sources/Chat/ChatClient.swift b/Sources/Chat/ChatClient.swift
index 19b3fc550..fdae06f01 100644
--- a/Sources/Chat/ChatClient.swift
+++ b/Sources/Chat/ChatClient.swift
@@ -73,6 +73,7 @@ public class ChatClient {
     /// record is a blockchain account with a client generated public key
     /// - Parameter account: CAIP10 blockchain account
     /// - Returns: public key
+    @discardableResult
     public func register(account: Account) async throws -> String {
         try await registryService.register(account: account)
     }
@@ -89,8 +90,8 @@ public class ChatClient {
     ///   - publicKey: publicKey associated with a peer
     ///   - openingMessage: oppening message for a chat invite
     ///   TODO - peerAccount should be derived
-    public func invite(publicKey: String, peerAccount: Account, openingMessage: String, account: Account) async throws {
-        try await inviteService.invite(peerPubKey: publicKey, peerAccount: peerAccount, openingMessage: openingMessage, account: account)
+    public func invite(peerAccount: Account, openingMessage: String, account: Account) async throws {
+        try await inviteService.invite(peerAccount: peerAccount, openingMessage: openingMessage, account: account)
     }
 
     public func accept(inviteId: String) async throws {
diff --git a/Sources/Chat/ChatClientFactory.swift b/Sources/Chat/ChatClientFactory.swift
index 7d52dab90..538040bbd 100644
--- a/Sources/Chat/ChatClientFactory.swift
+++ b/Sources/Chat/ChatClientFactory.swift
@@ -35,7 +35,7 @@ public struct ChatClientFactory {
         let threadStore = Database<Thread>(keyValueStorage: keyValueStorage, identifier: ChatStorageIdentifiers.threads.rawValue)
         let resubscriptionService = ResubscriptionService(networkingInteractor: networkingInteractor, threadStore: threadStore, logger: logger)
         let invitationHandlingService = InvitationHandlingService(registry: registry, networkingInteractor: networkingInteractor, kms: kms, logger: logger, topicToRegistryRecordStore: topicToRegistryRecordStore, invitePayloadStore: invitePayloadStore, threadsStore: threadStore)
-        let inviteService = InviteService(networkingInteractor: networkingInteractor, kms: kms, threadStore: threadStore, rpcHistory: rpcHistory, logger: logger)
+        let inviteService = InviteService(networkingInteractor: networkingInteractor, kms: kms, threadStore: threadStore, rpcHistory: rpcHistory, logger: logger, registry: registry)
         let leaveService = LeaveService()
         let messagesStore = Database<Message>(keyValueStorage: keyValueStorage, identifier: ChatStorageIdentifiers.messages.rawValue)
         let messagingService = MessagingService(networkingInteractor: networkingInteractor, messagesStore: messagesStore, threadStore: threadStore, logger: logger)
diff --git a/Sources/Chat/ProtocolServices/Inviter/InviteService.swift b/Sources/Chat/ProtocolServices/Inviter/InviteService.swift
index 9568bfac4..9e88cc815 100644
--- a/Sources/Chat/ProtocolServices/Inviter/InviteService.swift
+++ b/Sources/Chat/ProtocolServices/Inviter/InviteService.swift
@@ -12,31 +12,37 @@ class InviteService {
     private let kms: KeyManagementService
     private let threadStore: Database<Thread>
     private let rpcHistory: RPCHistory
+    private let registry: Registry
 
     var onNewThread: ((Thread) -> Void)?
     var onInvite: ((Invite) -> Void)?
 
-    init(networkingInteractor: NetworkInteracting,
-         kms: KeyManagementService,
-         threadStore: Database<Thread>,
-         rpcHistory: RPCHistory,
-         logger: ConsoleLogging) {
+    init(
+        networkingInteractor: NetworkInteracting,
+        kms: KeyManagementService,
+        threadStore: Database<Thread>,
+        rpcHistory: RPCHistory,
+        logger: ConsoleLogging,
+        registry: Registry
+    ) {
         self.kms = kms
         self.networkingInteractor = networkingInteractor
         self.logger = logger
         self.threadStore = threadStore
         self.rpcHistory = rpcHistory
+        self.registry = registry
         setUpResponseHandling()
     }
 
     var peerAccount: Account!
 
-    func invite(peerPubKey: String, peerAccount: Account, openingMessage: String, account: Account) async throws {
+    func invite(peerAccount: Account, openingMessage: String, account: Account) async throws {
         // TODO ad storage
         let protocolMethod = ChatInviteProtocolMethod()
         self.peerAccount = peerAccount
         let selfPubKeyY = try kms.createX25519KeyPair()
         let invite = Invite(message: openingMessage, account: account, publicKey: selfPubKeyY.hexRepresentation)
+        let peerPubKey = try await registry.resolve(account: peerAccount)
         let symKeyI = try kms.performKeyAgreement(selfPublicKey: selfPubKeyY, peerPublicKey: peerPubKey)
         let inviteTopic = try AgreementPublicKey(hex: peerPubKey).rawRepresentation.sha256().toHexString()