diff --git a/verifiable/constants.go b/verifiable/constants.go
index b2c93af..9ed489e 100644
--- a/verifiable/constants.go
+++ b/verifiable/constants.go
@@ -51,6 +51,12 @@ const (
 	// PushNotificationServiceType is service type for delivering push notifications to identity
 	PushNotificationServiceType = "push-notification"
 
+	// Iden3MobileServiceType is service type for mobile function invoke to reach user agent in iden3 protocol
+	Iden3MobileServiceType = "Iden3MobileServiceV1"
+
+	// Iden3WebServiceType is service type for web redirects as a way to reach user agent in iden3 protocol
+	Iden3WebServiceType = "Iden3WebRedirectServiceV1"
+
 	// CredentialMerklizedRootPositionIndex is merklized root position of W3CCredential in the IndexDataSlotA (core claim)
 	CredentialMerklizedRootPositionIndex = "index"
 
diff --git a/verifiable/did_doc.go b/verifiable/did_doc.go
index d134421..79cf18a 100644
--- a/verifiable/did_doc.go
+++ b/verifiable/did_doc.go
@@ -24,6 +24,12 @@ type Service struct {
 	ServiceEndpoint string `json:"serviceEndpoint"`
 }
 
+// WebRedirectService describes the service of web redirection
+type WebRedirectService struct {
+	Service
+	Method string `json:"method"`
+}
+
 // PushService describes the services of push notifications
 type PushService struct {
 	Service