AWS Native Agent Identity Displaces Third-Party IAM
Keycard
The real threat is distribution, not just features. When AWS puts agent identity inside the same stack that already runs the model, the runtime, the network boundary, and token storage, an AWS heavy team can get policy checks, secret handling, and workload isolation without buying and integrating a separate product. That shifts identity from a standalone control point into a built in cloud feature, especially for teams already standardizing on Bedrock and AWS IAM.
-
AWS is packaging the whole agent control loop together. AgentCore Identity adds identity aware authorization and vault storage for refresh tokens, while AgentCore overall adds VPC and PrivateLink support. That means one vendor can now cover where the agent runs, what it can call, and how its credentials are stored.
-
AWS already did something similar for non human workloads before agents. In EKS, IAM roles for service accounts let a container get temporary AWS credentials tied to a specific service account instead of passing around long lived keys. Agent identity inside Bedrock is a natural extension of that pattern into AI runtimes.
-
The opening for an independent vendor is cross platform and cross app delegation. Keycard brokers access across SaaS APIs like GitHub and Stripe, mints task scoped tokens, and keeps delegation trails from user to agent to resource. That matters most when an agent spans multiple clouds, external tools, and existing identity systems that no single cloud owns.
The market is heading toward a split. Native cloud identity will win simple single cloud agent deployments, while independent vendors will be pushed toward the harder cases, multi cloud access, third party SaaS actions, and enterprise wide audit across many systems. As more clouds copy AWS, the standalone category becomes less about basic credential issuance and more about interoperability and governance across fragmented environments.