Explore how to transform existing microservices into agent-compatible systems through this 48-minute conference talk from AWS re:Invent 2025. Discover the revolutionary impact of agentic AI on system interactions, where autonomous agents plan, reason, and execute actions by directly calling APIs. Master the implementation of AgentCore Gateway on AWS to expose REST, GraphQL, and event-driven protocols as callable tools for AI agents. Learn essential techniques for enabling secure LLM access to your services and implementing schema-based discovery mechanisms. Examine proven patterns for observability and multi-step workflow chaining that facilitate rapid agent integration without requiring extensive refactoring of existing services. Gain practical insights into converting current APIs into agent-ready interfaces that scale effectively, positioning your microservices architecture for the future of autonomous AI interactions.