diff --git a/service/raw/service.go b/service/raw/service.go
new file mode 100644
index 0000000..1f610af
--- /dev/null
+++ b/service/raw/service.go
@@ -0,0 +1,31 @@
+package raw
+
+import "context"
+
+// RawService is the interface that provides the business logic for the service.
+type RawService[Req, Resp any] interface {
+	// RawCall is the entry point for the service.
+	RawCall(ctx context.Context, req Req) (Resp, error)
+}
+
+// RawServiceFn is the function type that implements the Service interface.
+type RawServiceFn[Req, Resp any] func(context.Context, Req) (Resp, error)
+
+func (self RawServiceFn[Req, Resp]) RawCall(ctx context.Context, req Req) (Resp, error) {
+	return self(ctx, req)
+}
+
+type RawLayer[Req, Resp any, S RawService[Req, Resp]] interface {
+	RawNext(service S) S
+}
+
+type RawLayerFn[Req, Resp any, S RawService[Req, Resp]] func(service S) S
+
+func (self RawLayerFn[Req, Resp, S]) RawNext(service S) S { return self(service) }
+
+func ComposeRawLayers[Req, Resp any, S RawService[Req, Resp], L RawLayer[Req, Resp, S]](service S, layers ...L) S {
+	for _, layer := range layers {
+		service = layer.RawNext(service)
+	}
+	return service
+}