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AWS introduces AWS Agent Registry for runtime discovery of tools and agents

AWS launched AWS Agent Registry, a managed service allowing orchestrators to discover Model Context Protocol servers and agents at runtime.

AWS introduces AWS Agent Registry for runtime discovery of tools and agents — image from AWS
Image: AWS

Summary

AWS introduced AWS Agent Registry, a managed service that lets orchestrator agents discover Model Context Protocol (MCP) servers, agents, and agent skills at runtime using semantic and keyword search. Instead of compiling hardcoded tools into an orchestrator, applications query the registry during a request, instantiate clients dynamically, and tear them down after execution. The service supports approval workflows, IAM authorization, and cross-account sharing.

What changed

  • AWS launched AWS Agent Registry as a managed service for cataloging and discovering Model Context Protocol servers, agents, and agent skills.
  • Orchestrator agents can query approved registry records using hybrid keyword and semantic search at runtime.
  • Publishers can manage a DRAFT to PENDING_APPROVAL to APPROVED lifecycle with IAM-separated permissions.
  • The service supports organization-wide discovery and cross-account sharing through AWS Organizations.

Availability

Available now

“AWS Agent Registry is generally available with capabilities that extend beyond this single-account sample:”

Founder takeaway

Review the AWS Agent Registry documentation and sample code to evaluate if dynamic runtime discovery can replace hardcoded tool wiring for your large enterprise API catalogs.

Source

AWSDiscover tools at runtime with AWS Agent Registry | Amazon Web Services

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