diff --git a/blockchain/abci.go b/blockchain/abci.go
index 1e0830e..54929b5 100644
--- a/blockchain/abci.go
+++ b/blockchain/abci.go
@@ -8,7 +8,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/gregorybednov/lbc/blockchain/types"
+	types "github.com/gregorybednov/lbc_sdk"
 
 	"github.com/dgraph-io/badger"
 	abci "github.com/tendermint/tendermint/abci/types"
diff --git a/blockchain/types/types.go b/blockchain/types/types.go
deleted file mode 100644
index 96243d4..0000000
--- a/blockchain/types/types.go
+++ /dev/null
@@ -1,41 +0,0 @@
-package types
-
-// Types subpackage.
-// You can you use to make an RFC client for abci application.
-
-type CommiterTxBody struct {
-	Type           string `json:"type"`
-	ID             string `json:"id"`
-	Name           string `json:"name"`
-	CommiterPubKey string `json:"commiter_pubkey"`
-}
-
-type PromiseTxBody struct {
-	Type        string `json:"type"`
-	ID          string `json:"id"`
-	Description string `json:"description"`
-	Timestamp   int64  `json:"timestamp,omitempty"` // ← чтобы понимать клиент
-	Title       string `json:"title,omitempty"`     // ← опционально, если когда-нибудь пригодится
-	Deadline    string `json:"deadline,omitempty"`
-}
-
-type CommitmentTxBody struct {
-	Type        string `json:"type"`
-	ID          string `json:"id"`
-	PromiseID   string `json:"promise_id"`
-	CommiterID  string `json:"commiter_id"`
-	CommiterSig string `json:"commiter_sig,omitempty"`
-}
-
-type CompoundTx struct {
-	Body struct {
-		Promise    *PromiseTxBody    `json:"promise"`
-		Commitment *CommitmentTxBody `json:"commitment"`
-	} `json:"body"`
-	Signature string `json:"signature"`
-}
-
-type SignedTx struct {
-	Body      any    `json:"body"`
-	Signature string `json:"signature"`
-}
diff --git a/go.mod b/go.mod
index ecb89e7..1d41186 100644
--- a/go.mod
+++ b/go.mod
@@ -68,6 +68,7 @@ require (
 	github.com/google/orderedcode v0.0.1 // indirect
 	github.com/google/pprof v0.0.0-20241017200806-017d972448fc // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
+	github.com/gregorybednov/lbc_sdk v0.0.0-20250810102513-432a51e65f76 // indirect
 	github.com/gtank/merlin v0.1.1 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/hjson/hjson-go/v4 v4.4.0 // indirect
diff --git a/go.sum b/go.sum
index fbd0cf5..8a8637f 100644
--- a/go.sum
+++ b/go.sum
@@ -195,6 +195,8 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
 github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/gregorybednov/lbc_sdk v0.0.0-20250810102513-432a51e65f76 h1:e3A+1v+Mjt8nuJcVnHuhHZuh4052KRLCUBpH4g74rVs=
+github.com/gregorybednov/lbc_sdk v0.0.0-20250810102513-432a51e65f76/go.mod h1:DBE00+SaYBtD4qw+nOtSTLuF6h9Ia4TkuBMJB+6krik=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/gtank/merlin v0.1.1 h1:eQ90iG7K9pOhtereWsmyRJ6RAwcP4tHTDBHXNg+u5is=
 github.com/gtank/merlin v0.1.1/go.mod h1:T86dnYJhcGOh5BjZFCJWTDeTK7XW8uE+E21Cy/bIQ+s=