diff --git a/baseapp/block_gas_test.go b/baseapp/block_gas_test.go
index 7ae5cda888c..443ebc44503 100644
--- a/baseapp/block_gas_test.go
+++ b/baseapp/block_gas_test.go
@@ -76,7 +76,6 @@ func TestBaseApp_BlockGas(t *testing.T) {
 			appBuilder        *runtime.AppBuilder
 			txConfig          client.TxConfig
 			cdc               codec.Codec
-			pcdc              codec.ProtoCodecMarshaler
 			interfaceRegistry codectypes.InterfaceRegistry
 			err               error
 		)
@@ -97,7 +96,6 @@ func TestBaseApp_BlockGas(t *testing.T) {
 			&interfaceRegistry,
 			&txConfig,
 			&cdc,
-			&pcdc,
 			&appBuilder)
 		require.NoError(t, err)
 
diff --git a/baseapp/msg_service_router_test.go b/baseapp/msg_service_router_test.go
index 23acbe99409..4d8cff45a4d 100644
--- a/baseapp/msg_service_router_test.go
+++ b/baseapp/msg_service_router_test.go
@@ -91,7 +91,7 @@ func TestMsgService(t *testing.T) {
 
 	var (
 		appBuilder        *runtime.AppBuilder
-		cdc               codec.ProtoCodecMarshaler
+		cdc               codec.Codec
 		interfaceRegistry codectypes.InterfaceRegistry
 	)
 	err := depinject.Inject(
diff --git a/client/tx/factory.go b/client/tx/factory.go
index 52e3abf0420..f21d861f3bb 100644
--- a/client/tx/factory.go
+++ b/client/tx/factory.go
@@ -298,10 +298,10 @@ func (f Factory) WithExtensionOptions(extOpts ...*codectypes.Any) Factory {
 func (f Factory) BuildUnsignedTx(msgs ...sdk.Msg) (client.TxBuilder, error) {
 	if f.offline && f.generateOnly {
 		if f.chainID != "" {
-			return nil, fmt.Errorf("chain ID cannot be used when offline and generate-only flags are set")
+			return nil, errors.New("chain ID cannot be used when offline and generate-only flags are set")
 		}
 	} else if f.chainID == "" {
-		return nil, fmt.Errorf("chain ID required but not specified")
+		return nil, errors.New("chain ID required but not specified")
 	}
 
 	fees := f.fees
@@ -379,7 +379,12 @@ func (f Factory) PrintUnsignedTx(clientCtx client.Context, msgs ...sdk.Msg) erro
 		return err
 	}
 
-	json, err := clientCtx.TxConfig.TxJSONEncoder()(unsignedTx.GetTx())
+	encoder := f.txConfig.TxJSONEncoder()
+	if encoder == nil {
+		return errors.New("cannot print unsigned tx: tx json encoder is nil")
+	}
+
+	json, err := encoder(unsignedTx.GetTx())
 	if err != nil {
 		return err
 	}
diff --git a/client/tx/tx.go b/client/tx/tx.go
index c3b678b6392..b7c66536235 100644
--- a/client/tx/tx.go
+++ b/client/tx/tx.go
@@ -100,7 +100,12 @@ func BroadcastTx(clientCtx client.Context, txf Factory, msgs ...sdk.Msg) error {
 	}
 
 	if !clientCtx.SkipConfirm {
-		txBytes, err := clientCtx.TxConfig.TxJSONEncoder()(tx.GetTx())
+		encoder := txf.txConfig.TxJSONEncoder()
+		if encoder == nil {
+			return errors.New("failed to encode transaction: tx json encoder is nil")
+		}
+
+		txBytes, err := encoder(tx.GetTx())
 		if err != nil {
 			return err
 		}
diff --git a/codec/proto_codec.go b/codec/proto_codec.go
index ea8f2e2593e..26259cf06f7 100644
--- a/codec/proto_codec.go
+++ b/codec/proto_codec.go
@@ -23,9 +23,9 @@ import (
 
 // ProtoCodecMarshaler defines an interface for codecs that utilize Protobuf for both
 // binary and JSON encoding.
+// Deprecated: Use Codec instead.
 type ProtoCodecMarshaler interface {
 	Codec
-	InterfaceRegistry() types.InterfaceRegistry
 }
 
 // ProtoCodec defines a codec that utilizes Protobuf for both binary and JSON
@@ -34,10 +34,7 @@ type ProtoCodec struct {
 	interfaceRegistry types.InterfaceRegistry
 }
 
-var (
-	_ Codec               = &ProtoCodec{}
-	_ ProtoCodecMarshaler = &ProtoCodec{}
-)
+var _ Codec = (*ProtoCodec)(nil)
 
 // NewProtoCodec returns a reference to a new ProtoCodec
 func NewProtoCodec(interfaceRegistry types.InterfaceRegistry) *ProtoCodec {
diff --git a/runtime/module.go b/runtime/module.go
index 44b019f5809..4440b3b8a31 100644
--- a/runtime/module.go
+++ b/runtime/module.go
@@ -82,7 +82,6 @@ func ProvideApp(interfaceRegistry codectypes.InterfaceRegistry) (
 	codec.Codec,
 	*codec.LegacyAmino,
 	*AppBuilder,
-	codec.ProtoCodecMarshaler,
 	*baseapp.MsgServiceRouter,
 	appmodule.AppModule,
 	protodesc.Resolver,
@@ -116,7 +115,7 @@ func ProvideApp(interfaceRegistry codectypes.InterfaceRegistry) (
 	}
 	appBuilder := &AppBuilder{app}
 
-	return cdc, amino, appBuilder, cdc, msgServiceRouter, appModule{app}, protoFiles, protoTypes, nil
+	return cdc, amino, appBuilder, msgServiceRouter, appModule{app}, protoFiles, protoTypes, nil
 }
 
 type AppInputs struct {
diff --git a/x/auth/tx/config.go b/x/auth/tx/config.go
index 1f0a05f48dc..58b536cb6ce 100644
--- a/x/auth/tx/config.go
+++ b/x/auth/tx/config.go
@@ -22,7 +22,7 @@ type config struct {
 	encoder        sdk.TxEncoder
 	jsonDecoder    sdk.TxDecoder
 	jsonEncoder    sdk.TxEncoder
-	protoCodec     codec.ProtoCodecMarshaler
+	protoCodec     codec.Codec
 	signingContext *txsigning.Context
 }
 
@@ -73,7 +73,7 @@ var DefaultSignModes = []signingtypes.SignMode{
 // We prefer to use depinject to provide client.TxConfig, but we permit this constructor usage. Within the SDK,
 // this constructor is primarily used in tests, but also sees usage in app chains like:
 // https://github.com/evmos/evmos/blob/719363fbb92ff3ea9649694bd088e4c6fe9c195f/encoding/config.go#L37
-func NewTxConfig(protoCodec codec.ProtoCodecMarshaler, enabledSignModes []signingtypes.SignMode,
+func NewTxConfig(protoCodec codec.Codec, enabledSignModes []signingtypes.SignMode,
 	customSignModes ...txsigning.SignModeHandler,
 ) client.TxConfig {
 	txConfig, err := NewTxConfigWithOptions(protoCodec, ConfigOptions{
@@ -165,9 +165,13 @@ func NewSigningHandlerMap(configOptions ConfigOptions) (*txsigning.HandlerMap, e
 
 // NewTxConfigWithOptions returns a new protobuf TxConfig using the provided ProtoCodec, ConfigOptions and
 // custom sign mode handlers. If ConfigOptions is an empty struct then default values will be used.
-func NewTxConfigWithOptions(protoCodec codec.ProtoCodecMarshaler, configOptions ConfigOptions) (client.TxConfig, error) {
+func NewTxConfigWithOptions(protoCodec codec.Codec, configOptions ConfigOptions) (client.TxConfig, error) {
 	txConfig := &config{
-		protoCodec: protoCodec,
+		protoCodec:  protoCodec,
+		decoder:     configOptions.ProtoDecoder,
+		encoder:     configOptions.ProtoEncoder,
+		jsonDecoder: configOptions.JSONDecoder,
+		jsonEncoder: configOptions.JSONEncoder,
 	}
 	if configOptions.ProtoDecoder == nil {
 		txConfig.decoder = DefaultTxDecoder(protoCodec)
diff --git a/x/auth/tx/config/config.go b/x/auth/tx/config/config.go
index 6fb7dba5014..7759530a28b 100644
--- a/x/auth/tx/config/config.go
+++ b/x/auth/tx/config/config.go
@@ -42,7 +42,7 @@ type ModuleInputs struct {
 	Config                *txconfigv1.Config
 	AddressCodec          address.Codec
 	ValidatorAddressCodec runtime.ValidatorAddressCodec
-	ProtoCodecMarshaler   codec.ProtoCodecMarshaler
+	Codec                 codec.Codec
 	ProtoFileResolver     txsigning.ProtoFileResolver
 	// BankKeeper is the expected bank keeper to be passed to AnteHandlers
 	BankKeeper             authtypes.BankKeeper               `optional:"true"`
@@ -86,7 +86,7 @@ func ProvideModule(in ModuleInputs) ModuleOutputs {
 		txConfigOptions.TextualCoinMetadataQueryFn = NewBankKeeperCoinMetadataQueryFn(in.MetadataBankKeeper)
 	}
 
-	txConfig, err := tx.NewTxConfigWithOptions(in.ProtoCodecMarshaler, txConfigOptions)
+	txConfig, err := tx.NewTxConfigWithOptions(in.Codec, txConfigOptions)
 	if err != nil {
 		panic(err)
 	}
diff --git a/x/auth/tx/decoder.go b/x/auth/tx/decoder.go
index 16253a4ba15..d74c7f20659 100644
--- a/x/auth/tx/decoder.go
+++ b/x/auth/tx/decoder.go
@@ -15,7 +15,7 @@ import (
 )
 
 // DefaultTxDecoder returns a default protobuf TxDecoder using the provided Marshaler.
-func DefaultTxDecoder(cdc codec.ProtoCodecMarshaler) sdk.TxDecoder {
+func DefaultTxDecoder(cdc codec.Codec) sdk.TxDecoder {
 	return func(txBytes []byte) (sdk.Tx, error) {
 		// Make sure txBytes follow ADR-027.
 		err := rejectNonADR027TxRaw(txBytes)
@@ -79,7 +79,7 @@ func DefaultTxDecoder(cdc codec.ProtoCodecMarshaler) sdk.TxDecoder {
 }
 
 // DefaultJSONTxDecoder returns a default protobuf JSON TxDecoder using the provided Marshaler.
-func DefaultJSONTxDecoder(cdc codec.ProtoCodecMarshaler) sdk.TxDecoder {
+func DefaultJSONTxDecoder(cdc codec.Codec) sdk.TxDecoder {
 	return func(txBytes []byte) (sdk.Tx, error) {
 		var theTx tx.Tx
 		err := cdc.UnmarshalJSON(txBytes, &theTx)
diff --git a/x/auth/tx/encoder.go b/x/auth/tx/encoder.go
index e98106a89a8..fc60b6a04e0 100644
--- a/x/auth/tx/encoder.go
+++ b/x/auth/tx/encoder.go
@@ -29,7 +29,7 @@ func DefaultTxEncoder() sdk.TxEncoder {
 }
 
 // DefaultJSONTxEncoder returns a default protobuf JSON TxEncoder using the provided Marshaler.
-func DefaultJSONTxEncoder(cdc codec.ProtoCodecMarshaler) sdk.TxEncoder {
+func DefaultJSONTxEncoder(cdc codec.Codec) sdk.TxEncoder {
 	return func(tx sdk.Tx) ([]byte, error) {
 		txWrapper, ok := tx.(*wrapper)
 		if ok {