A2A Inspector

Debug and test A2A (Agent2Agent) protocol agents in Kubernetes.

Install

ark install marketplace/services/a2a-inspector

Or with DevSpace:

cd services/a2a-inspector
devspace dev

Access via:

• http://a2a-inspector.default.127.0.0.1.nip.io:8080 
• Port forward: kubectl port-forward svc/a2a-inspector 8080:8080
• Ark Dashboard → Services page

Usage

1. Connect to an A2A agent by entering its URL (e.g., http://localhost:5555)

2. View the agent card and perform specification compliance checks

3. Use the live chat interface to interact with the agent

4. Open the debug console to view raw JSON-RPC 2.0 messages

Features

• Agent Card Viewer: Automatically fetches and displays agent information
• Spec Compliance: Validates agents against A2A specification
• Live Chat: Interactive messaging with connected agents
• Debug Console: View raw protocol messages for debugging

Uninstall

Using DevSpace:

cd services/a2a-inspector
devspace purge

Using Helm:

helm uninstall a2a-inspector -n default

Additional Resources

• A2A Inspector GitHub 
• A2A Protocol