diff --git a/include/bitcoin/network/impl/messages/rpc/dispatcher.ipp b/include/bitcoin/network/impl/messages/rpc/dispatcher.ipp
index 276917bb7..9df8b3bcf 100644
--- a/include/bitcoin/network/impl/messages/rpc/dispatcher.ipp
+++ b/include/bitcoin/network/impl/messages/rpc/dispatcher.ipp
@@ -66,7 +66,10 @@ inline external_t<Argument> CLASS::get_valued(const value_t& value) THROWS
     const auto& internal = value.value();
     using type = internal_t<Argument>;
 
-    if constexpr (is_shared_ptr<type>)
+    if constexpr (is_same_type<Argument, value_t> ||
+        is_same_type<type, value_t>)
+        return value;
+    else if constexpr (is_shared_ptr<type>)
         return std::get<any_t>(internal).as<pointer_t<type>>();
     else if constexpr (is_nullable<Argument>)
         return { std::get<type>(internal) };
diff --git a/include/bitcoin/network/messages/rpc/types.hpp b/include/bitcoin/network/messages/rpc/types.hpp
index 5bd509303..44a770168 100644
--- a/include/bitcoin/network/messages/rpc/types.hpp
+++ b/include/bitcoin/network/messages/rpc/types.hpp
@@ -36,7 +36,7 @@ namespace rpc {
 /// ---------------------------------------------------------------------------
 
 struct optional_tag {};
-enum class empty { array, object };
+enum class empty { array, object, value };
 
 /// Partial specializations for optional (values).
 template <auto Default>
@@ -67,6 +67,18 @@ struct optional<Default>
     static const type default_value() NOEXCEPT  { return {}; }
 };
 
+/// value_t : optional<empty::value>
+template <auto Default> requires
+is_same_type<decltype(Default), empty> && (Default == empty::value)
+struct optional<Default>
+{
+    using tag = optional_tag;
+    using type = value_t;
+
+    /// value_t optional default is only/always empty.
+    static constexpr type default_value() NOEXCEPT { return {}; }
+};
+
 /// int8_t   : optional<42_i8>  (int8_t)
 /// int16_t  : optional<42_i16> (int16_t)
 /// int32_t  : optional<42_i32> (int32_t)
@@ -139,7 +151,7 @@ template <typename Type> requires
     is_same_type<Type, object_t> || is_same_type<Type, array_t> ||
     is_same_type<Type, string_t> || is_same_type<Type, boolean_t> ||
     is_same_type<Type, number_t> || is_integral_integer<Type> ||
-    is_shared_ptr<Type>
+    is_same_type<Type, value_t>  || is_shared_ptr<Type>
 struct nullable
 {
     using tag = nullable_tag;