diff --git a/lib/diaspora_federation/validators.rb b/lib/diaspora_federation/validators.rb
index 4d7f51b..a84f349 100644
--- a/lib/diaspora_federation/validators.rb
+++ b/lib/diaspora_federation/validators.rb
@@ -36,3 +36,4 @@ require "diaspora_federation/validators/h_card_validator"
 require "diaspora_federation/validators/person_validator"
 require "diaspora_federation/validators/profile_validator"
 require "diaspora_federation/validators/web_finger_validator"
+require "diaspora_federation/validators/request_validator"
diff --git a/lib/diaspora_federation/validators/request_validator.rb b/lib/diaspora_federation/validators/request_validator.rb
new file mode 100644
index 0000000..2bd7ec3
--- /dev/null
+++ b/lib/diaspora_federation/validators/request_validator.rb
@@ -0,0 +1,10 @@
+module DiasporaFederation
+  module Validators
+    class RequestValidator < Validation::Validator
+      include Validation
+
+      rule :sender_id, %i(not_nil diaspora_id)
+      rule :recipient_id, %i(not_nil diaspora_id)
+    end
+  end
+end