Building a serverless A2A gateway for agent discovery, routing, and access control | Amazon Web Services
As enterprises deploy AI agents across teams, vendors, and infrastructure, managing agent-to-agent communication becomes a growing operational burden. Without a centralized layer, each new agent integration adds point-to-point connections, separate credentials, and custom routing logic. Teams spend engineering cycles wiring up connectivity instead of building agent capabilities. Access control becomes fragmented, with no single place to enforce which clients can reach which agents. The result is slower time-to-market for new agent workflows, increased security risk from inconsistent auth policies, and operational overhead that scales quadratically with each new agent added to the network.
The gateway pattern addresses this by placing a single entry point in front of your agents, regardless of whether they run on Amazon Elastic Container Service (Amazon ECS), AWS Lambda, Amazon Bedrock AgentCore Runtime, a non-AWS cloud, or a hybrid environment. It handles routing and enforces fine-grained permissions centrally, without binding teams to a...
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