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Subgraph-compatible server libraries

The following open-source GraphQL server libraries support acting as a subgraph in a federated graph, and their support is tracked in Apollo's subgraph compatibility repository. Check out the repository for details on the compatibility tests listed in the table below.

LanguageLibraryFederation 1 SupportFederation 2 Support
C# (.NET)GraphQL for .NET
_service✅
@key (single)✅
@key (multi)❌
@key (composite)❌
@requires❌
@provides❌
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
C# (.NET)Hot Chocolate
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
Elixir (Absinthe)Absinthe.Federation
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
Gogqlgen
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1✅
@link✅
@shareable✅
@tag✅
@override✅
@inaccessible✅
Java / Kotlindgs-framework
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1✅
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
Java / KotlinFederation JVM
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1✅
@link✅
@shareable✅
@tag✅
@override✅
@inaccessible✅
Java / KotlinGraphQL Kotlin
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1✅
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
JavaScript / TypeScriptApollo Server
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1✅
@link✅
@shareable✅
@tag✅
@override✅
@inaccessible✅
JavaScript / TypeScriptexpress-graphql
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link✅
@shareable✅
@tag✅
@override✅
@inaccessible✅
JavaScript / TypeScriptGraphQL Yoga
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link✅
@shareable✅
@tag✅
@override✅
@inaccessible✅
JavaScript / TypeScriptMercurius
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
MultipleAWS AppSync
_service❌
@key (single)❌
@key (multi)❌
@key (composite)❌
@requires❌
@provides❌
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
PHPApollo Federation PHP
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
PHP (Laravel)Lighthouse
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
PythonAriadne
_service✅
@key (single)✅
@key (multi)❌
@key (composite)❌
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
PythonGraphene
_service✅
@key (single)✅
@key (multi)✅
@key (composite)❌
@requires✅
@provides❌
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
PythonStrawberry
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
RubyGraphQL Ruby
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1✅
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
RustAsync-graphql
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1❌
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌
ScalaCaliban
_service✅
@key (single)✅
@key (multi)✅
@key (composite)✅
@requires✅
@provides✅
@ftv1✅
@link❌
@shareable❌
@tag❌
@override❌
@inaccessible❌

To add a library to this list, feel free to open an issue or check out the Apollo Federation Library Maintainers Implementation Guide to learn how to submit a PR for your library!

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