---
name: a2a-agent-card
description: Publish A2A agent-card.json
---

# Fix: a2aAgentCard

**Probe:** `GET /.well-known/agent-card.json` — pass if JSON has string `name`, string `version`, and array `supportedInterfaces`.

```json
{
    "name": "My Agent",
    "version": "1.0.0",
    "supportedInterfaces": [{ "url": "https://example.com/a2a", "protocolBinding": "JSONRPC" }]
}
```

Spec: https://a2a-protocol.org/