# API Keys documentation

[Read product documentation](https://docs.cloud.google.com/api-keys/docs/overview.md.txt)
API Keys lets you create and manage your API keys for your projects.

## Documentation resources

Find quickstarts and guides, review key references, and get help with common issues.

### Guides

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  [Getting started](https://docs.cloud.google.com/api-keys/docs/get-started-api-keys.md.txt)

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  [Creating and managing API keys](https://docs.cloud.google.com/api-keys/docs/create-manage-api-keys.md.txt)

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  [Getting information about API keys](https://docs.cloud.google.com/api-keys/docs/get-info-api-keys.md.txt)

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  [Adding restrictions to API keys](https://docs.cloud.google.com/api-keys/docs/add-restrictions-api-keys.md.txt)

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  [Access control](https://docs.cloud.google.com/api-keys/docs/access-control.md.txt)

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  [Creating and managing custom constraints](https://docs.cloud.google.com/api-keys/docs/custom-constraints.md.txt)

### Reference

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  [REST API](https://docs.cloud.google.com/api-keys/docs/reference/rest.md.txt)

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  [RPC API](https://docs.cloud.google.com/api-keys/docs/reference/rpc.md.txt)

### Resources

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  [Quotas](https://docs.cloud.google.com/api-keys/docs/quotas.md.txt)

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  [Release notes](https://docs.cloud.google.com/api-keys/docs/release-notes.md.txt)

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  [Support](https://docs.cloud.google.com/api-keys/docs/support.md.txt)