diff --git a/changelogs/unreleased/sh-include-project-path-for-internal-api.yml b/changelogs/unreleased/sh-include-project-path-for-internal-api.yml
new file mode 100644
index 0000000000000000000000000000000000000000..1973049e9e3cef6bb0fb09e2a75beb64f6b267df
--- /dev/null
+++ b/changelogs/unreleased/sh-include-project-path-for-internal-api.yml
@@ -0,0 +1,5 @@
+---
+title: Include gl_project_path in API /internal/allowed response
+merge_request: 25314
+author:
+type: other
diff --git a/lib/api/helpers/internal_helpers.rb b/lib/api/helpers/internal_helpers.rb
index 4eaaca96b490a1ac1e2521785f774db2a75fde90..fe78049af87867ddb4ec30df5bb300637637a0cb 100644
--- a/lib/api/helpers/internal_helpers.rb
+++ b/lib/api/helpers/internal_helpers.rb
@@ -81,6 +81,14 @@ module API
         Gitlab::GlRepository.gl_repository(project, wiki?)
       end
 
+      def gl_project_path
+        if wiki?
+          project.wiki.full_path
+        else
+          project.full_path
+        end
+      end
+
       # Return the repository depending on whether we want the wiki or the
       # regular repository
       def repository
diff --git a/lib/api/internal.rb b/lib/api/internal.rb
index b44ef2a6ea4e61117ec0b7896194c9986e9f72ce..70b32f7d758a59f6a48daab25c9e1c603f8997ff 100644
--- a/lib/api/internal.rb
+++ b/lib/api/internal.rb
@@ -77,6 +77,7 @@ module API
         when ::Gitlab::GitAccessResult::Success
           payload = {
             gl_repository: gl_repository,
+            gl_project_path: gl_project_path,
             gl_id: Gitlab::GlId.gl_id(user),
             gl_username: user&.username,
             git_config_options: [],
diff --git a/spec/requests/api/internal_spec.rb b/spec/requests/api/internal_spec.rb
index 11d9ce354f1fb4278a844b6738933202a4abedba..cd85151ec1bc3e83ba2e1bfe0ffb718db94da52a 100644
--- a/spec/requests/api/internal_spec.rb
+++ b/spec/requests/api/internal_spec.rb
@@ -325,6 +325,7 @@ describe API::Internal do
           expect(response).to have_gitlab_http_status(200)
           expect(json_response["status"]).to be_truthy
           expect(json_response["repository_path"]).to eq('/')
+          expect(json_response["gl_project_path"]).to eq(project.wiki.full_path)
           expect(json_response["gl_repository"]).to eq("wiki-#{project.id}")
           expect(user.reload.last_activity_on).to be_nil
         end
@@ -337,6 +338,7 @@ describe API::Internal do
           expect(response).to have_gitlab_http_status(200)
           expect(json_response["status"]).to be_truthy
           expect(json_response["repository_path"]).to eq('/')
+          expect(json_response["gl_project_path"]).to eq(project.wiki.full_path)
           expect(json_response["gl_repository"]).to eq("wiki-#{project.id}")
           expect(user.reload.last_activity_on).to eql(Date.today)
         end
@@ -350,6 +352,7 @@ describe API::Internal do
           expect(json_response["status"]).to be_truthy
           expect(json_response["repository_path"]).to eq('/')
           expect(json_response["gl_repository"]).to eq("project-#{project.id}")
+          expect(json_response["gl_project_path"]).to eq(project.full_path)
           expect(json_response["gitaly"]).not_to be_nil
           expect(json_response["gitaly"]["repository"]).not_to be_nil
           expect(json_response["gitaly"]["repository"]["storage_name"]).to eq(project.repository.gitaly_repository.storage_name)
@@ -369,6 +372,7 @@ describe API::Internal do
             expect(json_response["status"]).to be_truthy
             expect(json_response["repository_path"]).to eq('/')
             expect(json_response["gl_repository"]).to eq("project-#{project.id}")
+            expect(json_response["gl_project_path"]).to eq(project.full_path)
             expect(json_response["gitaly"]).not_to be_nil
             expect(json_response["gitaly"]["repository"]).not_to be_nil
             expect(json_response["gitaly"]["repository"]["storage_name"]).to eq(project.repository.gitaly_repository.storage_name)