Amazon Bedrock Agent Benchmarked Orchestrating Google ADK Worker Across AWS and GCP

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A developer has built and tested a cross-cloud currency conversion agent that uses an Amazon Bedrock master agent, hosted on AWS AgentCore Runtime in us-east-1, to delegate tasks to a Google ADK worker running on GCP Cloud Run in us-central1 via the A2A v1.0 protocol. The benchmark goes beyond basic connectivity checks, measuring latency, token overhead, reliability, and failure recovery across three evaluation modes: local MCP-only, remote A2A-only, and a cross-verified combination of both. Both cloud agents independently query the same Frankfurter daily exchange-rate API, ensuring any disagreements reflect protocol or model behavior rather than data-source differences. Numeric accuracy is evaluated programmatically using relative difference calculations rather than relying on an LLM to judge result similarity. The project also compares results against a prior benchmark run using Microsoft Azure, making it one of the few published interoperability tests spanning AWS, GCP, and Azure simultaneously.

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