google-cloud-api_keys-v2

https://github.com/googleapis/google-cloud-ruby

An API key is a simple encrypted string that you can use when calling Google Cloud APIs. The API Keys service manages the API keys associated with developer projects. Note that google-cloud-api_keys-v2 is a version-specific client library. For most uses, we recommend installing the main client library google-cloud-api_keys instead. See the readme for more details.