curl --request POST \
  --url https://api.example.com/agents/spans/query \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "project_id": "<string>",
  "query": {
    "$expr": {
      "$and": [
        {
          "$literal": "<string>"
        }
      ]
    }
  },
  "group_by": [
    {
      "key": "<string>",
      "source": "field",
      "alias": "<string>"
    }
  ],
  "measures": [
    {
      "alias": "<string>",
      "value": {
        "key": "<string>",
        "source": "field"
      },
      "filter": {
        "$expr": {
          "$and": [
            {
              "$literal": "<string>"
            }
          ]
        }
      }
    }
  ],
  "group_filters": [
    {
      "measure": {
        "alias": "<string>",
        "value": {
          "key": "<string>",
          "source": "field"
        },
        "filter": {
          "$expr": {
            "$and": [
              {
                "$literal": "<string>"
              }
            ]
          }
        }
      },
      "group_by": [
        {
          "key": "<string>",
          "source": "field",
          "alias": "<string>"
        }
      ],
      "min": 123,
      "max": 123
    }
  ],
  "group_distributions": [
    {
      "alias": "<string>",
      "value": {
        "key": "<string>",
        "source": "field"
      },
      "bins": 12,
      "top_n": 5
    }
  ],
  "custom_attr_columns": [
    {
      "key": "<string>",
      "source": "field"
    }
  ],
  "include_details": false,
  "sort_by": [
    {
      "field": "<string>",
      "direction": "desc"
    }
  ],
  "limit": 100,
  "offset": 0,
  "started_after": "2023-11-07T05:31:56Z",
  "started_before": "2023-11-07T05:31:56Z"
}
'

{
  "spans": [
    {
      "project_id": "<string>",
      "trace_id": "<string>",
      "span_id": "<string>",
      "parent_span_id": "<string>",
      "span_name": "<string>",
      "started_at": "2023-11-07T05:31:56Z",
      "ended_at": "2023-11-07T05:31:56Z",
      "status_message": "<string>",
      "operation_name": "<string>",
      "provider_name": "<string>",
      "agent_name": "<string>",
      "agent_id": "<string>",
      "agent_description": "<string>",
      "agent_version": "<string>",
      "request_model": "<string>",
      "response_model": "<string>",
      "response_id": "<string>",
      "input_tokens": 123,
      "output_tokens": 123,
      "reasoning_tokens": 123,
      "cache_creation_input_tokens": 123,
      "cache_read_input_tokens": 123,
      "reasoning_content": "<string>",
      "conversation_id": "<string>",
      "conversation_name": "<string>",
      "tool_name": "<string>",
      "tool_type": "<string>",
      "tool_call_id": "<string>",
      "tool_description": "<string>",
      "tool_definitions": "<string>",
      "finish_reasons": [
        "<string>"
      ],
      "error_type": "<string>",
      "request_temperature": 123,
      "request_max_tokens": 123,
      "request_top_p": 123,
      "request_frequency_penalty": 123,
      "request_presence_penalty": 123,
      "request_seed": 123,
      "request_stop_sequences": [
        "<string>"
      ],
      "request_choice_count": 123,
      "output_type": "<string>",
      "input_messages": [
        {
          "content": "<string>",
          "role": "",
          "finish_reason": ""
        }
      ],
      "output_messages": [
        {
          "content": "<string>",
          "role": "",
          "finish_reason": ""
        }
      ],
      "system_instructions": [
        "<string>"
      ],
      "tool_call_arguments": "<string>",
      "tool_call_result": "<string>",
      "compaction_summary": "<string>",
      "compaction_items_before": 123,
      "compaction_items_after": 123,
      "content_refs": [
        "<string>"
      ],
      "artifact_refs": [
        "<string>"
      ],
      "object_refs": [
        "<string>"
      ],
      "custom_attrs_string": {},
      "custom_attrs_int": {},
      "custom_attrs_float": {},
      "custom_attrs_bool": {},
      "server_address": "<string>",
      "server_port": 123,
      "wb_user_id": "<string>",
      "wb_run_id": "<string>",
      "wb_run_step": 123,
      "wb_run_step_end": 123,
      "raw_span_dump": "<string>"
    }
  ],
  "groups": [
    {
      "group_keys": {},
      "span_count": 0,
      "invocation_count": 0,
      "conversation_count": 0,
      "total_input_tokens": 0,
      "total_cache_creation_input_tokens": 0,
      "total_cache_read_input_tokens": 0,
      "total_output_tokens": 0,
      "total_reasoning_tokens": 0,
      "total_duration_ms": 0,
      "error_count": 0,
      "agent_names": [
        "<string>"
      ],
      "agent_versions": [
        "<string>"
      ],
      "provider_names": [
        "<string>"
      ],
      "request_models": [
        "<string>"
      ],
      "conversation_names": [
        "<string>"
      ],
      "first_seen": "2023-11-07T05:31:56Z",
      "last_seen": "2023-11-07T05:31:56Z",
      "first_message": {
        "role": "",
        "text": ""
      },
      "last_message": {
        "role": "",
        "text": ""
      },
      "metrics": {},
      "distributions": {}
    }
  ],
  "total_count": 0
}