diff --git a/test/resources/annotations/srv/protocols.cds b/test/resources/annotations/srv/protocols.cds
index c4d0947..654d423 100644
--- a/test/resources/annotations/srv/protocols.cds
+++ b/test/resources/annotations/srv/protocols.cds
@@ -1,47 +1,49 @@
-service NotAnnotated {
+context protocols {
   entity A {
     key id : UUID;
   }
 }
 
+service NotAnnotated {
+  entity A as projection on protocols.A;
+}
+
 @protocol: 'none'
 service AnnotatedWithAtProtocolNone {
-  entity A {
-    key id : UUID;
-  }
+  entity A as projection on protocols.A;
 }
 
 @protocol: 'odata'
 service AnnotatedWithNonGraphQL {
-  entity A {
-    key id : UUID;
-  }
+  entity A as projection on protocols.A;
 }
 
 @graphql
 service AnnotatedWithAtGraphQL {
-  entity A {
-    key id : UUID;
-  }
+  entity A as projection on protocols.A;
 }
 
 @protocol: 'graphql'
 service AnnotatedWithAtProtocolString {
-  entity A {
-    key id : UUID;
-  }
+  entity A as projection on protocols.A;
 }
 
 @protocol: ['graphql']
 service AnnotatedWithAtProtocolStringList {
-  entity A {
-    key id : UUID;
-  }
+  entity A as projection on protocols.A;
 }
 
 @protocol: [{kind: 'graphql'}]
 service AnnotatedWithAtProtocolObjectList {
-  entity A {
-    key id : UUID;
-  }
+  entity A as projection on protocols.A;
+}
+
+@protocol: { graphql }
+service AnnotatedWithAtProtocolObjectWithKey {
+  entity A as projection on protocols.A;
+}
+
+@protocol: { graphql: 'dummy' }
+service AnnotatedWithAtProtocolObjectWithKeyAndValue {
+  entity A as projection on protocols.A;
 }
diff --git a/test/schemas/annotations.gql b/test/schemas/annotations.gql
index 9918197..690bd97 100644
--- a/test/schemas/annotations.gql
+++ b/test/schemas/annotations.gql
@@ -66,6 +66,74 @@ type AnnotatedWithAtProtocolObjectList_input {
   A: AnnotatedWithAtProtocolObjectList_A_input
 }
 
+type AnnotatedWithAtProtocolObjectWithKey {
+  A(filter: [AnnotatedWithAtProtocolObjectWithKey_A_filter], orderBy: [AnnotatedWithAtProtocolObjectWithKey_A_orderBy], skip: Int, top: Int): AnnotatedWithAtProtocolObjectWithKey_A_connection
+}
+
+type AnnotatedWithAtProtocolObjectWithKeyAndValue {
+  A(filter: [AnnotatedWithAtProtocolObjectWithKeyAndValue_A_filter], orderBy: [AnnotatedWithAtProtocolObjectWithKeyAndValue_A_orderBy], skip: Int, top: Int): AnnotatedWithAtProtocolObjectWithKeyAndValue_A_connection
+}
+
+type AnnotatedWithAtProtocolObjectWithKeyAndValue_A {
+  id: ID
+}
+
+input AnnotatedWithAtProtocolObjectWithKeyAndValue_A_C {
+  id: ID
+}
+
+type AnnotatedWithAtProtocolObjectWithKeyAndValue_A_connection {
+  nodes: [AnnotatedWithAtProtocolObjectWithKeyAndValue_A]
+  totalCount: Int
+}
+
+input AnnotatedWithAtProtocolObjectWithKeyAndValue_A_filter {
+  id: [ID_filter]
+}
+
+type AnnotatedWithAtProtocolObjectWithKeyAndValue_A_input {
+  create(input: [AnnotatedWithAtProtocolObjectWithKeyAndValue_A_C]!): [AnnotatedWithAtProtocolObjectWithKeyAndValue_A]
+  delete(filter: [AnnotatedWithAtProtocolObjectWithKeyAndValue_A_filter]!): Int
+}
+
+input AnnotatedWithAtProtocolObjectWithKeyAndValue_A_orderBy {
+  id: SortDirection
+}
+
+type AnnotatedWithAtProtocolObjectWithKeyAndValue_input {
+  A: AnnotatedWithAtProtocolObjectWithKeyAndValue_A_input
+}
+
+type AnnotatedWithAtProtocolObjectWithKey_A {
+  id: ID
+}
+
+input AnnotatedWithAtProtocolObjectWithKey_A_C {
+  id: ID
+}
+
+type AnnotatedWithAtProtocolObjectWithKey_A_connection {
+  nodes: [AnnotatedWithAtProtocolObjectWithKey_A]
+  totalCount: Int
+}
+
+input AnnotatedWithAtProtocolObjectWithKey_A_filter {
+  id: [ID_filter]
+}
+
+type AnnotatedWithAtProtocolObjectWithKey_A_input {
+  create(input: [AnnotatedWithAtProtocolObjectWithKey_A_C]!): [AnnotatedWithAtProtocolObjectWithKey_A]
+  delete(filter: [AnnotatedWithAtProtocolObjectWithKey_A_filter]!): Int
+}
+
+input AnnotatedWithAtProtocolObjectWithKey_A_orderBy {
+  id: SortDirection
+}
+
+type AnnotatedWithAtProtocolObjectWithKey_input {
+  A: AnnotatedWithAtProtocolObjectWithKey_A_input
+}
+
 type AnnotatedWithAtProtocolString {
   A(filter: [AnnotatedWithAtProtocolString_A_filter], orderBy: [AnnotatedWithAtProtocolString_A_orderBy], skip: Int, top: Int): AnnotatedWithAtProtocolString_A_connection
 }
@@ -147,6 +215,8 @@ input ID_filter {
 type Mutation {
   AnnotatedWithAtGraphQL: AnnotatedWithAtGraphQL_input
   AnnotatedWithAtProtocolObjectList: AnnotatedWithAtProtocolObjectList_input
+  AnnotatedWithAtProtocolObjectWithKey: AnnotatedWithAtProtocolObjectWithKey_input
+  AnnotatedWithAtProtocolObjectWithKeyAndValue: AnnotatedWithAtProtocolObjectWithKeyAndValue_input
   AnnotatedWithAtProtocolString: AnnotatedWithAtProtocolString_input
   AnnotatedWithAtProtocolStringList: AnnotatedWithAtProtocolStringList_input
 }
@@ -154,6 +224,8 @@ type Mutation {
 type Query {
   AnnotatedWithAtGraphQL: AnnotatedWithAtGraphQL
   AnnotatedWithAtProtocolObjectList: AnnotatedWithAtProtocolObjectList
+  AnnotatedWithAtProtocolObjectWithKey: AnnotatedWithAtProtocolObjectWithKey
+  AnnotatedWithAtProtocolObjectWithKeyAndValue: AnnotatedWithAtProtocolObjectWithKeyAndValue
   AnnotatedWithAtProtocolString: AnnotatedWithAtProtocolString
   AnnotatedWithAtProtocolStringList: AnnotatedWithAtProtocolStringList
 }
diff --git a/test/tests/annotations.test.js b/test/tests/annotations.test.js
index 629ef23..e3ec8ad 100644
--- a/test/tests/annotations.test.js
+++ b/test/tests/annotations.test.js
@@ -123,5 +123,37 @@ describe('graphql - annotations', () => {
       const response = await POST(path, { query })
       expect(response.data).not.toHaveProperty('errors')
     })
+
+    test('service annotated with "@protocol: { graphql }" is served at configured path', async () => {
+      const query = gql`
+        {
+          AnnotatedWithAtProtocolObjectWithKey {
+            A {
+              nodes {
+                id
+              }
+            }
+          }
+        }
+      `
+      const response = await POST(path, { query })
+      expect(response.data).not.toHaveProperty('errors')
+    })
+
+    test('service annotated with "@protocol: { graphql: \'dummy\' }" is served at configured path', async () => {
+      const query = gql`
+        {
+          AnnotatedWithAtProtocolObjectWithKeyAndValue {
+            A {
+              nodes {
+                id
+              }
+            }
+          }
+        }
+      `
+      const response = await POST(path, { query })
+      expect(response.data).not.toHaveProperty('errors')
+    })
   })
 })