- [### Client libraries
  Discover SDKs and client libraries for programmatic access to the Service Directory API.](https://docs.cloud.google.com/service-directory/docs/reference/libraries)
- [### REST reference
  View the Service Directory REST API reference for Service Directory APIs,
  version 1 and version 1 beta1.](https://docs.cloud.google.com/service-directory/docs/reference/rest)
- [### RPC reference
  View the Service Directory RPC API reference.](https://docs.cloud.google.com/service-directory/docs/reference/rpc)