curl --request GET \
  --url https://app.livechatai.com/api/v2/analytics/ai-functions \
  --header 'Authorization: Bearer <token>'

{
  "status": "success",
  "data": {
    "currentPeriod": {
      "total": 245,
      "totalFailed": 12,
      "functions": [
        {
          "name": "send_email",
          "description": "Send email to user",
          "total": 85,
          "totalFailed": 3,
          "type": "CUSTOM",
          "mcpName": null,
          "mcpProvider": "slack"
        }
      ]
    },
    "previousPeriod": {
      "total": 212,
      "totalFailed": 13
    },
    "changes": {
      "total": 15.5,
      "totalFailed": -8.2
    }
  }
}