# Google Auth Library for Go
[](https://pkg.go.dev/cloud.google.com/go/auth)
## Install
``` bash
go get cloud.google.com/go/auth@latest
```
## Usage
The most common way this library is used is transitively, by default, from any
of our Go client libraries.
### Notable use-cases
- To create a credential directly please see examples in the
[credentials](https://pkg.go.dev/cloud.google.com/go/auth/credentials)
package.
- To create a authenticated HTTP client please see examples in the
[httptransport](https://pkg.go.dev/cloud.google.com/go/auth/httptransport)
package.
- To create a authenticated gRPC connection please see examples in the
[grpctransport](https://pkg.go.dev/cloud.google.com/go/auth/grpctransport)
package.
- To create an ID token please see examples in the
[idtoken](https://pkg.go.dev/cloud.google.com/go/auth/credentials/idtoken)
package.
## Contributing
Contributions are welcome. Please, see the
[CONTRIBUTING](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/main/CONTRIBUTING.md)
document for details.
Please note that this project is released with a Contributor Code of Conduct.
By participating in this project you agree to abide by its terms.
See [Contributor Code of Conduct](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/main/CONTRIBUTING.md#contributor-code-of-conduct)
for more information.
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