Highlights
Complete
Protocol
Full A2A spec support with both JSON-RPC and REST protocol bindings. Agent Cards, Tasks, Messages, Artifacts, Streaming, Push Notifications, and multi-turn conversations - all from a single server definition.
Agent
Connectivity
Type-safe A2A clients for both JSON-RPC and REST bindings. Plug your agent straight into Claude Desktop, Cursor, or any MCP client via the provided bridge.
Testable
Design
Pure functions, no side effects. Test agent interactions fully in-memory - no network, no ports, no flaky CI.
Agent
Discovery
Agent Cards for capability advertisement and discovery. Extended Agent Cards for authenticated access. Publish skills, security schemes, and JWS signatures for card integrity.
Task
Lifecycle
Full task state management with pagination and filtering. Push notifications via webhooks for status changes. Long-running agent collaboration built in.
Streaming
Real-time SSE streaming for large outputs and continuous updates. Subscribe to task updates for live status changes. Progressive results without polling.
Multi-tenancy
First-class tenant isolation across tasks, storage, and routing. Build multi-tenant agent platforms with tenant-scoped task storage and protocol endpoints.
Wiretap
Integration
Built-in Wiretap support for A2A servers. Intercept JUnit extension. Wiretap Console for live traffic monitoring and OpenTelemetry tracing across agent interactions.
