AWS Secrets Manager helps you to securely encrypt, store, and retrieve credentials for your databases and other services. Instead of hardcoding credentials in your apps, you can make calls to Secrets Manager to retrieve your credentials whenever needed. Secrets Manager helps you protect access to your IT resources and data by helping you rotate and manage access to your secrets.

User Guide
Walks you through creating and managing your secrets, retrieving them in your application, and automatically rotating them to help keep them secure.
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API Reference
Describes all the API operations for the AWS Secrets Manager service. It provides sample requests, responses, and errors that can be generated.