The protocol enables agents constructed on disparate frameworks to discover each other and exchange operational tasks across separate corporate environments. A demonstrated reference architecture pairs a LangChain enterprise orchestrator with a third-party Strands Agents compliance tool hosted in an external account. Security is maintained through standard OAuth 2.0 and OpenID Connect protocols, where each participating organization authenticates requests using its own dedicated Amazon Cognito user pool. The workflow routes through Amazon API Gateway and containerized runtimes to safely share metadata and return verified compliance scans.
Key points
Standardized Agent Cards allow organizations to introduce new capabilities without alteri…: Standardized Agent Cards allow organizations to introduce new capabilities without altering existing system deployments.
Independent systems can safely collaborate across corporate boundaries without sharing se…: Independent systems can safely collaborate across corporate boundaries without sharing secrets by using OAuth 2.0 and OpenID Connect.
Each party in the architecture maintains distinct trust boundaries by authenticating via…: Each party in the architecture maintains distinct trust boundaries by authenticating via separate Amazon Cognito user pools.
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Artificial Intelligence
Build composable, interoperable multi-agent systems with A2A on AWS
Agents in multi-agent systems that span organizational boundaries often need to collaborate in a composable, interoperable way, with agents that other organizations build and run. They need a way to discover each other, communicate, and exchange tasks without exposing internals or requiring the same framework on both sides.
The Agent-to-Agent (A2A) protocol addresses this constraint. Without A2A, building composable multi-agent systems across organizational boundaries requires custom integration code for each customer and framework. Independent software vendors (ISVs) can instead build composable, interoperable agents that work with the A2A-compatible frameworks their customers already use.
While we frame this post around the ISV use case, the pattern also applies to organizations that expose agents across boundaries, whether to partners, customers, or internal teams that use different frameworks. As your system grows, you add skills by registering Agent Cards with the orchestrator, without changing the agents already running.
In this post, we walk through a deployed reference architecture on AWS. A LangChain-based enterprise orchestrator communicates with a Strands Agents-based software as a…
A Google researcher working on an independent project sparked controversy after incorrectly announcing an unmapped archaeological find in Mexico. The location had actually been documented in an academic journal the previous year, prompting domain experts to raise alarms over the lack of proper peer review. The episode highlights the growing friction surrounding amateur technologists applying automated scanning systems to specialized academic fields without collaborating with specialists.
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