# Federation Types with no service backing them

**URL:** <https://community.apollographql.com/t/federation-types-with-no-service-backing-them/9510>\
**Category:** Schema Design\
**Tags:** federation, router, schema-design\
**Created:** [October 17, 2025, 3:23pm UTC](https://community.apollographql.com/t/federation-types-with-no-service-backing-them/9510 "2025-10-17T15:23:48Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![edinstance](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/edinstance/32/6395_2.png) [@edinstance](https://community.apollographql.com/u/edinstance)\
**Post date:** [October 17, 2025, 3:23pm UTC](https://community.apollographql.com/t/federation-types-with-no-service-backing-them/9510/1 "2025-10-17T15:23:48Z")

</div>

I am creating a federated Graphql API with Apollo Router, I have a couple of types and directives that I want to share between multiple of my subgraphs, such as an authentication directive or a shared type for pagination. Ideally I want to just have these shared in my supergraph and let all of the services use them, but from what I’ve found, I need to have a service backing them it can’t just be a type.

Does anyone have any recommendations about how to set this up ?

Thank you