curl --request GET \
  --url https://api.swarmd.ai/relay/v1/agents/{agentId}/a2a/0.3.0/card \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "protocolVersion": "<string>",
  "name": "<string>",
  "description": "<string>",
  "url": "<string>",
  "preferredTransport": "<string>",
  "additionalInterfaces": [
    {
      "url": "<string>",
      "transport": "<string>"
    }
  ],
  "provider": {
    "organization": "<string>",
    "url": "<string>"
  },
  "iconUrl": "<string>",
  "documentationUrl": "<string>",
  "version": "<string>",
  "capabilities": {
    "streaming": true,
    "pushNotifications": true,
    "stateTransitionHistory": true,
    "extensions": [
      {
        "uri": "<string>",
        "description": "<string>",
        "required": true,
        "params": {}
      }
    ]
  },
  "securitySchemes": {},
  "security": [
    {}
  ],
  "defaultInputModes": [
    "<string>"
  ],
  "defaultOutputModes": [
    "<string>"
  ],
  "skills": [
    {
      "id": "<string>",
      "name": "<string>",
      "description": "<string>",
      "tags": [
        "<string>"
      ],
      "examples": [
        "<string>"
      ],
      "inputModes": [
        "<string>"
      ],
      "outputModes": [
        "<string>"
      ],
      "security": [
        {}
      ]
    }
  ],
  "supportsAuthenticatedExtendedCard": true,
  "signatures": [
    "<string>"
  ]
}