a2a-protocol

Secure multi-agent interoperability is implemented using the A2A protocol, enabling autonomous AI agents to delegate tasks and communicate across different frameworks without exposing internal state. It includes Bearer token authentication for secure cross-agent communication.

The A2A protocol is Google's open standard for horizontal interoperability between autonomous AI agents. It facilitates agent discovery via Agent Cards, task lifecycle management, streaming partial results, and multi-turn input-required workflows across different runtimes.

Yes, the A2A protocol implementation supports both Spring Boot for Java environments and FastAPI for Python. This allows production agent networks to integrate A2A endpoints for task submission and streaming regardless of the backend framework.

Build an agent registry by utilizing standardized Agent Cards served at a well-known URL. This mechanism allows the system to discover available autonomous agents by their declared capabilities for targeted task delegation workflows.

Stream partial results from delegated tasks by utilizing the A2A protocol's core streaming endpoints. The implementation supports sending progressive progress updates and structured artifacts back to the orchestrator agent during the task lifecycle.

Security best practices for cross-organization agent networks include implementing Bearer token authentication, input validation, and task lifecycle safety. These production-grade guardrails prevent anti-patterns and secure cross-agent communication.