Vapi is the Voice AI platform for developers.

Vapi AI

"params": {
    "queries": [
      {
        "table": "call",
        "groupBy": [
          "type",
          "status",
          "assistantId"
        ],
        "name": "Grouped by Assistant ID",
        "timeRange": {
          "start": "2025-01-01T00:00:00Z",
          "end": "2025-01-20T23:59:59Z",
          "step": "day",
          "timezone": "UTC"
        },
        "operations": [
          {
            "operation": "count",
            "column": "id",
            "alias": "call_count"
          },
          {
            "operation": "sum",
            "column": "cost",
            "alias": "total_cost"
          }
        ]
      }
    ]
  }
}