# How AWS AppSync uses AWS Secrets Manager
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AWS AppSync provides a robust, scalable GraphQL interface for application developers to combine data from multiple sources, including Amazon DynamoDB, AWS Lambda, and HTTP APIs.

AWS AppSync uses the credentials in a Secrets Manager secret to connect to Amazon RDS and Aurora. For more information, see [Tutorial: Aurora Serverless](https://docs.aws.amazon.com/appsync/latest/devguide/tutorial-rds-resolvers.html) in the *AWS AppSync Developer Guide*.