# List Futures Footprints

Retrieves futures footprint data.

# OpenAPI definition

```json
{
  "info": {
    "title": "Webull OpenAPI Documentation",
    "description": "The Webull OpenAPI enables integration of trading APIs, market data for building trading applications and brokerage solutions. It supports HTTP-based historical and real-time market data and MQTT streaming via WebSocket/TCP, along with SDKs, secure authentication, and APIs for orders, accounts, and event contract trading.",
    "contact": {
      "name": "Webull Developer Support",
      "url": "https://www.webull.hk/en/help",
      "email": "webull-api-support@webull.com"
    },
    "version": "2.0",
    "x-logo": {
      "url": "static/png/logo.png"
    }
  },
  "servers": [
    {
      "url": "https://api.sandbox.webull.hk"
    }
  ],
  "path": "/market-data/futures/footprints/list",
  "method": "get",
  "tags": [
    "Futures Market Data"
  ],
  "description": "Retrieves futures footprint data.",
  "operationId": "futuresFootprint",
  "parameters": [
    {
      "name": "symbols",
      "in": "query",
      "description": "List of security symbols, supports JSON array format, multiple symbols separated by commas; maximum 20 symbols per query.",
      "required": true,
      "schema": {
        "type": "string"
      },
      "example": "SILZ5,6BM6"
    },
    {
      "name": "category",
      "in": "query",
      "description": "Security type. Category values are as shown in the enum; Only US_FUTURES type queries are supported.",
      "required": true,
      "schema": {
        "type": "string",
        "enum": [
          "US_FUTURES",
          "HK_FUTURES"
        ]
      },
      "example": "US_FUTURES"
    },
    {
      "name": "timespan",
      "in": "query",
      "description": "Supports granularities such as S5, S15, M1, M5, and M30.",
      "required": true,
      "schema": {
        "type": "string",
        "enum": [
          "S5",
          "S15",
          "M1",
          "M5",
          "M30"
        ]
      },
      "example": "S5"
    },
    {
      "name": "count",
      "in": "query",
      "description": "Number of bars, default 200, maximum limit 1200.",
      "required": false,
      "schema": {
        "type": "string",
        "description": "1-1200",
        "default": "200"
      },
      "example": 500
    },
    {
      "name": "real_time_required",
      "in": "query",
      "description": "Whether to include the latest unfinalized bar. Default: false. Applies to minute level timespans only",
      "required": true,
      "schema": {
        "type": "string",
        "default": "false"
      },
      "example": true
    },
    {
      "name": "trading_sessions",
      "in": "query",
      "description": "Specify trading hours. Only supported RTH",
      "required": false,
      "schema": {
        "type": "string",
        "enum": [
          "PRE",
          "RTH",
          "ATH",
          "OVN"
        ]
      },
      "example": "RTH"
    },
    {
      "name": "x-app-key",
      "in": "header",
      "description": "A unique identifier issued to a developer for accessing an application's API.",
      "required": true,
      "schema": {
        "type": "string"
      }
    },
    {
      "name": "x-app-secret",
      "in": "header",
      "description": "A unique key issued to developers to access the application's API.",
      "required": true,
      "schema": {
        "type": "string"
      }
    },
    {
      "name": "x-timestamp",
      "in": "header",
      "description": "Timestamp of the request, follows ISO8601 format: YYYY-MM-DDThh:mm:ssZ, e.g. 2023-07-16T19:23:51Z, only supports UTC time zone.",
      "required": true,
      "schema": {
        "type": "string"
      }
    },
    {
      "name": "x-signature-version",
      "in": "header",
      "description": "Signature algorithm version, default is 1.0.",
      "required": true,
      "schema": {
        "type": "string",
        "default": "1.0"
      },
      "examples": {
        "1.0": {
          "value": "1.0"
        }
      }
    },
    {
      "name": "x-signature-algorithm",
      "in": "header",
      "description": "Signature algorithm, default is HMAC-SHA1.",
      "required": true,
      "schema": {
        "type": "string",
        "default": "HMAC-SHA1"
      },
      "examples": {
        "HMAC-SHA1": {
          "value": "HMAC-SHA1"
        }
      }
    },
    {
      "name": "x-signature-nonce",
      "in": "header",
      "description": "Signature unique random number.",
      "required": true,
      "schema": {
        "type": "string"
      }
    },
    {
      "name": "x-access-token",
      "in": "header",
      "description": "An access token is a credential that represents the authorization granted to a client (e.g., a user or an application) to access specific protected resources on behalf of a user, without needing to share their password.",
      "required": true,
      "schema": {
        "type": "string"
      }
    },
    {
      "name": "x-version",
      "in": "header",
      "description": "API interface version. Supported values: `v2`, `v3`.",
      "required": true,
      "schema": {
        "type": "string",
        "default": "v3"
      },
      "examples": {
        "v3": {
          "value": "v3"
        }
      }
    },
    {
      "name": "x-signature",
      "in": "header",
      "description": "A signature is a unique digital fingerprint, typically encrypted, that verifies the authenticity and integrity of a message or transaction, ensuring it has not been tampered with during transmission.",
      "required": true,
      "schema": {
        "type": "string"
      }
    }
  ],
  "responses": {
    "200": {
      "description": "OK",
      "content": {
        "application/json": {
          "schema": {
            "type": "array",
            "items": {
              "required": [
                "symbol"
              ],
              "type": "object",
              "properties": {
                "symbol": {
                  "type": "string",
                  "description": "Futures contract symbol used in trading and market data, e.g. front-month code provided by the exchange.",
                  "example": "ESmain"
                },
                "instrument_id": {
                  "type": "string",
                  "description": "Unique instrument identifier for this futures contract in the Webull system or exchange.",
                  "example": "470004426"
                },
                "result": {
                  "type": "array",
                  "description": "Footprint result",
                  "items": {
                    "type": "object",
                    "properties": {
                      "time": {
                        "type": "string",
                        "description": "Bar timestamp in ISO-8601 format",
                        "example": "2025-11-13T14:51:00.000+0000"
                      },
                      "trading_session": {
                        "type": "string",
                        "description": "Trading session identifier only supported RTH (e.g.,RTH)",
                        "example": "RTH"
                      },
                      "total": {
                        "type": "string",
                        "description": "The sum of the main buy and sell volumes",
                        "example": "6053"
                      },
                      "delta": {
                        "type": "string",
                        "description": "The difference in trading volume (primary buyers - primary sellers)",
                        "example": "389"
                      },
                      "buy_total": {
                        "type": "string",
                        "description": " Buy-initiated volume",
                        "example": "3221"
                      },
                      "sell_total": {
                        "type": "string",
                        "description": "Sell-initiated volume",
                        "example": "2832"
                      },
                      "buy_detail": {
                        "type": "object",
                        "additionalProperties": {
                          "type": "string",
                          "description": "The main purchase footprint details (quantity combined for items with the same price).",
                          "example": "{\"6823\":\"7\",\"6823.25\":\"34\"}"
                        },
                        "description": "The main purchase footprint details (quantity combined for items with the same price).",
                        "example": {
                          "6823": "7",
                          "6823.25": "34"
                        }
                      },
                      "sell_detail": {
                        "type": "object",
                        "additionalProperties": {
                          "type": "string",
                          "description": "The main seller's footprint shows details (quantities combined for the same price).",
                          "example": "{\"6822.75\":\"1\",\"6823\":\"45\"}"
                        },
                        "description": "The main seller's footprint shows details (quantities combined for the same price).",
                        "example": {
                          "6823": "45",
                          "6822.75": "1"
                        }
                      }
                    },
                    "description": "FuturesFootprint",
                    "title": "FuturesFootprint"
                  }
                }
              },
              "title": "FuturesFootprintVo"
            }
          }
        }
      }
    },
    "401": {
      "description": "Unauthorized: Authentication required",
      "content": {
        "application/json": {
          "schema": {
            "type": "object",
            "properties": {
              "error_code": {
                "type": "string",
                "description": "Internal logic error code",
                "example": "UNAUTHORIZED"
              },
              "message": {
                "type": "string",
                "description": "Error message",
                "example": "Insufficient permission"
              }
            }
          }
        }
      }
    },
    "417": {
      "description": "A business logic error triggered when the request cannot be processed due to domain-specific constraints.",
      "content": {
        "application/json": {
          "schema": {
            "type": "object",
            "properties": {
              "error_code": {
                "type": "string",
                "description": "Internal logic error code",
                "example": "INVALID_PARAMETER"
              },
              "message": {
                "type": "string",
                "description": "Error message",
                "example": "Parameter error, phone"
              }
            }
          }
        }
      }
    },
    "500": {
      "description": "Internal Server Error.",
      "content": {
        "application/json": {
          "schema": {
            "type": "object",
            "properties": {
              "error_code": {
                "type": "string",
                "description": "Internal logic error code",
                "example": "SYSTEM_ERROR"
              },
              "message": {
                "type": "string",
                "description": "Error message",
                "example": "Internal Server Error"
              }
            }
          }
        }
      }
    }
  },
  "postman": {
    "name": "List Futures Footprints",
    "description": {
      "content": "Retrieves futures footprint data.",
      "type": "text/plain"
    },
    "url": {
      "path": [
        "market-data",
        "futures",
        "footprints",
        "list"
      ],
      "host": [
        "{{baseUrl}}"
      ],
      "query": [
        {
          "disabled": false,
          "description": {
            "content": "(Required) List of security symbols, supports JSON array format, multiple symbols separated by commas; maximum 20 symbols per query.",
            "type": "text/plain"
          },
          "key": "symbols",
          "value": ""
        },
        {
          "disabled": false,
          "description": {
            "content": "(Required) Security type. Category values are as shown in the enum; Only US_FUTURES type queries are supported.",
            "type": "text/plain"
          },
          "key": "category",
          "value": ""
        },
        {
          "disabled": false,
          "description": {
            "content": "(Required) Supports granularities such as S5, S15, M1, M5, and M30.",
            "type": "text/plain"
          },
          "key": "timespan",
          "value": ""
        },
        {
          "disabled": false,
          "description": {
            "content": "Number of bars, default 200, maximum limit 1200.",
            "type": "text/plain"
          },
          "key": "count",
          "value": ""
        },
        {
          "disabled": false,
          "description": {
            "content": "(Required) Whether to include the latest unfinalized bar. Default: false. Applies to minute level timespans only",
            "type": "text/plain"
          },
          "key": "real_time_required",
          "value": ""
        },
        {
          "disabled": false,
          "description": {
            "content": "Specify trading hours. Only supported RTH",
            "type": "text/plain"
          },
          "key": "trading_sessions",
          "value": ""
        }
      ],
      "variable": []
    },
    "header": [
      {
        "disabled": false,
        "description": {
          "content": "(Required) A unique identifier issued to a developer for accessing an application's API.",
          "type": "text/plain"
        },
        "key": "x-app-key",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) A unique key issued to developers to access the application's API.",
          "type": "text/plain"
        },
        "key": "x-app-secret",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) Timestamp of the request, follows ISO8601 format: YYYY-MM-DDThh:mm:ssZ, e.g. 2023-07-16T19:23:51Z, only supports UTC time zone.",
          "type": "text/plain"
        },
        "key": "x-timestamp",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) Signature algorithm version, default is 1.0.",
          "type": "text/plain"
        },
        "key": "x-signature-version",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) Signature algorithm, default is HMAC-SHA1.",
          "type": "text/plain"
        },
        "key": "x-signature-algorithm",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) Signature unique random number.",
          "type": "text/plain"
        },
        "key": "x-signature-nonce",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) An access token is a credential that represents the authorization granted to a client (e.g., a user or an application) to access specific protected resources on behalf of a user, without needing to share their password.",
          "type": "text/plain"
        },
        "key": "x-access-token",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) API interface version. Supported values: `v2`, `v3`.",
          "type": "text/plain"
        },
        "key": "x-version",
        "value": ""
      },
      {
        "disabled": false,
        "description": {
          "content": "(Required) A signature is a unique digital fingerprint, typically encrypted, that verifies the authenticity and integrity of a message or transaction, ensuring it has not been tampered with during transmission.",
          "type": "text/plain"
        },
        "key": "x-signature",
        "value": ""
      },
      {
        "key": "Accept",
        "value": "application/json"
      }
    ],
    "method": "GET"
  }
}
```