diff --git a/routing.go b/routing.go
index cff8c77..a28ceb9 100644
--- a/routing.go
+++ b/routing.go
@@ -8,4 +8,7 @@ import (
 type RoutingAPI interface {
 	// Get retrieves the best value for a given key
 	Get(context.Context, string) ([]byte, error)
+
+	// Put sets a value for a given key
+	Put(ctx context.Context, key string, value []byte) error
 }