diff --git a/components/restapi/core/blocks.go b/components/restapi/core/blocks.go
index b480d9bbb..91d8cb41b 100644
--- a/components/restapi/core/blocks.go
+++ b/components/restapi/core/blocks.go
@@ -1,13 +1,10 @@
 package core
 
 import (
-	"io"
-
 	"github.com/labstack/echo/v4"
 
 	"github.com/iotaledger/hive.go/ierrors"
 	"github.com/iotaledger/inx-app/pkg/httpserver"
-	"github.com/iotaledger/iota-core/pkg/blockhandler"
 	"github.com/iotaledger/iota-core/pkg/model"
 	"github.com/iotaledger/iota-core/pkg/restapi"
 	iotago "github.com/iotaledger/iota.go/v4"
@@ -64,67 +61,3 @@ func blockIssuance(_ echo.Context) (*apimodels.IssuanceBlockHeaderResponse, erro
 
 	return resp, nil
 }
-
-func sendBlock(c echo.Context) (*apimodels.BlockCreatedResponse, error) {
-	mimeType, err := httpserver.GetRequestContentType(c, httpserver.MIMEApplicationVendorIOTASerializerV2, echo.MIMEApplicationJSON)
-	if err != nil {
-		return nil, ierrors.Wrapf(httpserver.ErrInvalidParameter, "invalid block, error: %w", err)
-	}
-
-	var iotaBlock = &iotago.ProtocolBlock{}
-
-	if c.Request().Body == nil {
-		// bad request
-		return nil, ierrors.Wrap(httpserver.ErrInvalidParameter, "invalid block, error: request body missing")
-	}
-
-	bytes, err := io.ReadAll(c.Request().Body)
-	if err != nil {
-		return nil, ierrors.Wrapf(httpserver.ErrInvalidParameter, "invalid block, error: %w", err)
-	}
-
-	switch mimeType {
-	case echo.MIMEApplicationJSON:
-		// Do not validate here, the parents might need to be set
-		if err := deps.Protocol.CurrentAPI().JSONDecode(bytes, iotaBlock); err != nil {
-			return nil, ierrors.Wrapf(httpserver.ErrInvalidParameter, "invalid block, error: %w", err)
-		}
-
-	case httpserver.MIMEApplicationVendorIOTASerializerV2:
-		version, _, err := iotago.VersionFromBytes(bytes)
-		if err != nil {
-			return nil, ierrors.Wrapf(httpserver.ErrInvalidParameter, "invalid block, error: %w", err)
-		}
-
-		apiForVersion, err := deps.Protocol.APIForVersion(version)
-		if err != nil {
-			return nil, ierrors.Wrapf(httpserver.ErrInvalidParameter, "invalid block, error: %w", err)
-		}
-
-		// Do not validate here, the parents might need to be set
-		if _, err := apiForVersion.Decode(bytes, iotaBlock); err != nil {
-			return nil, ierrors.Wrapf(httpserver.ErrInvalidParameter, "invalid block, error: %w", err)
-		}
-
-	default:
-		return nil, echo.ErrUnsupportedMediaType
-	}
-
-	blockID, err := deps.BlockHandler.AttachBlock(c.Request().Context(), iotaBlock)
-	if err != nil {
-		switch {
-		case ierrors.Is(err, blockhandler.ErrBlockAttacherInvalidBlock):
-			return nil, ierrors.Wrapf(httpserver.ErrInvalidParameter, "failed to attach block: %w", err)
-
-		case ierrors.Is(err, blockhandler.ErrBlockAttacherAttachingNotPossible):
-			return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to attach block: %w", err)
-
-		default:
-			return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to attach block: %w", err)
-		}
-	}
-
-	return &apimodels.BlockCreatedResponse{
-		BlockID: blockID,
-	}, nil
-}
diff --git a/components/restapi/core/component.go b/components/restapi/core/component.go
index 9cce52ff2..f8d5e429a 100644
--- a/components/restapi/core/component.go
+++ b/components/restapi/core/component.go
@@ -335,19 +335,6 @@ func checkNodeSynced() echo.MiddlewareFunc {
 	}
 }
 
-func checkUpcomingUnsupportedProtocolVersion() echo.MiddlewareFunc {
-	return func(next echo.HandlerFunc) echo.HandlerFunc {
-		return func(c echo.Context) error {
-			// todo update with protocol upgrades support
-			// if !deps.ProtocolManager.NextPendingSupported() {
-			//	return ierrors.Wrap(echo.ErrServiceUnavailable, "node does not support the upcoming protocol upgrade")
-			// }
-
-			return next(c)
-		}
-	}
-}
-
 func responseByHeader(c echo.Context, obj any) error {
 	mimeType, err := httpserver.GetAcceptHeaderContentType(c, httpserver.MIMEApplicationVendorIOTASerializerV2, echo.MIMEApplicationJSON)
 	if err != nil && err != httpserver.ErrNotAcceptable {