AWS shows private-key JWT authentication for Bedrock agents

AWS has detailed how developers can use private-key JWT authentication with Amazon Bedrock AgentCore Identity, giving agent-based applications a more controlled way to prove their identity.

The walkthrough explains the authentication flow, then shows how to create an AWS KMS signing key, register the corresponding public key with an identity provider, configure a credential provider, and review the resulting AWS CloudTrail events.

Private-key JWT is a client authentication method in which the client signs a short-lived assertion instead of sending a static shared secret. For AI agents that may call tools and services on behalf of users or organizations, that can make credential handling easier to audit and rotate.

The post is technical, but the broader point is operational. As agent systems move from demos to production, identity becomes a core safety boundary. AWS is positioning AgentCore Identity as part of that boundary, especially for teams that need traceable access rather than opaque agent actions.