Read raw and SDK-normalized Agent Cards, select advertised interfaces, and see structural checks.
Open-source A2A testing workbench
Test agents as real applications.
A2A Workbench is an interactive studio for Agent Card discovery, task and stream behavior, protocol operations, and content-aware artifacts across A2A v1.0 and v0.3.
The demo tests publicly reachable HTTPS JSON-RPC and HTTP+JSON agents. For authenticated agents, gRPC, private networks, webhooks, and larger files, run Workbench locally.
Send messages, follow tasks, resume streams, cancel work, and inspect wire evidence.
Use rendered, structured, and raw views for text, Markdown, JSON, tables, media, PDFs, URLs, and binary content.
Where it fits
Workbench complements A2A Inspector’s interactive inspection, the official TCK’s normative conformance testing, and ITK’s cross-SDK interoperability coverage. It focuses on the hands-on client experience and the evidence behind it.