# List Crypto Historical Bars
Retrieve historical candlestick (K-line) data for a specified crypto symbol.
Supports multiple time intervals such as M1, M5, H1, D, etc.
• Daily and higher intervals return forward-adjusted bars
• Minute intervals return non-adjusted bars
Supports retrieving the most recent N bars:
• Range: 1–1200 bars (all intervals)
Rate Limits:
• 1 request per second per App Key
• Market Data Global Limit: 600 requests per minute
# OpenAPI definition
```json
{
"info": {
"title": "Webull OpenAPI Documentation",
"description": "The Webull OpenAPI enables integration of trading APIs, market data, and OAuth authentication 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.com/help",
"email": "api-support@webull-us.com"
},
"version": "2.0",
"x-logo": {
"url": "static/png/logo.png"
}
},
"servers": [
{
"url": "https://api.sandbox.webull.com"
}
],
"path": "/market-data/crypto/bars/list",
"method": "get",
"tags": [
"Crypto Market Data"
],
"description": "Retrieve historical candlestick (K-line) data for a specified crypto symbol.
Supports multiple time intervals such as M1, M5, H1, D, etc.
• Daily and higher intervals return forward-adjusted bars
• Minute intervals return non-adjusted bars
Supports retrieving the most recent N bars:
• Range: 1–1200 bars (all intervals)
Rate Limits:
• 1 request per second per App Key
• Market Data Global Limit: 600 requests per minute",
"operationId": "cryptoBars",
"parameters": [
{
"name": "symbols",
"in": "query",
"description": "List of crypto trading symbols. Supports JSON array format or comma-separated values. Maximum 20 symbols.",
"required": true,
"schema": {
"type": "string"
},
"example": "BTCUSD"
},
{
"name": "category",
"in": "query",
"description": "Asset category (e.g., US_CRYPTO). Only US_CRYPTO are supported.",
"required": true,
"schema": {
"type": "string",
"enum": [
"US_CRYPTO"
]
},
"example": "US_CRYPTO"
},
{
"name": "timespan",
"in": "query",
"description": "Time interval of the candlesticks (e.g., M1, M5, D).",
"required": true,
"schema": {
"type": "string",
"enum": [
"M1",
"M5",
"M15",
"M30",
"M60",
"M120",
"M240",
"D",
"W",
"M",
"Y"
]
},
"example": "D"
},
{
"name": "count",
"in": "query",
"description": "Number of bars to return. Default is 200. Range 1–1200;",
"required": false,
"schema": {
"type": "string",
"default": "200"
},
"example": 500
},
{
"name": "real_time_required",
"in": "query",
"description": "Whether to include the most recent in-progress bar.
• true: Only completed historical bars are returned
• false: Includes the latest in-progress bar",
"required": true,
"schema": {
"type": "string",
"default": "true"
},
"example": true
},
{
"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": "List of historical bar (candlestick) records.",
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"type": "object",
"properties": {
"symbol": {
"type": "string",
"description": "Crypto trading symbol",
"example": "BTCUSD"
},
"instrument_id": {
"type": "string",
"description": "Internal instrument identifier",
"example": "950184636"
},
"result": {
"type": "array",
"description": "List of historical K-line (candlestick) records",
"items": {
"type": "object",
"properties": {
"time": {
"type": "string",
"description": "Bar timestamp in ISO-8601 or Unix time format",
"example": "2021-12-28T09:00:09.945+0000"
},
"open": {
"type": "string",
"description": "Open price",
"example": "150.25"
},
"close": {
"type": "string",
"description": "Close price",
"example": "152.3"
},
"high": {
"type": "string",
"description": "Highest price within the bar interval",
"example": "153.15"
},
"low": {
"type": "string",
"description": "Lowest price within the bar interval",
"example": "149.8"
}
},
"description": "Single K-line (candlestick) bar record",
"title": "BarDetailVo"
}
}
},
"description": "Historical K-line (candlestick) data for a crypto",
"title": "CryptoBarsVo"
}
}
}
}
},
"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 Crypto Historical Bars",
"description": {
"content": "Retrieve historical candlestick (K-line) data for a specified crypto symbol.
Supports multiple time intervals such as M1, M5, H1, D, etc.
• Daily and higher intervals return forward-adjusted bars
• Minute intervals return non-adjusted bars
Supports retrieving the most recent N bars:
• Range: 1–1200 bars (all intervals)
Rate Limits:
• 1 request per second per App Key
• Market Data Global Limit: 600 requests per minute",
"type": "text/plain"
},
"url": {
"path": [
"market-data",
"crypto",
"bars",
"list"
],
"host": [
"{{baseUrl}}"
],
"query": [
{
"disabled": false,
"description": {
"content": "(Required) List of crypto trading symbols. Supports JSON array format or comma-separated values. Maximum 20 symbols.",
"type": "text/plain"
},
"key": "symbols",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) Asset category (e.g., US_CRYPTO). Only US_CRYPTO are supported.",
"type": "text/plain"
},
"key": "category",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) Time interval of the candlesticks (e.g., M1, M5, D).",
"type": "text/plain"
},
"key": "timespan",
"value": ""
},
{
"disabled": false,
"description": {
"content": "Number of bars to return. Default is 200. Range 1–1200;",
"type": "text/plain"
},
"key": "count",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) Whether to include the most recent in-progress bar.
• true: Only completed historical bars are returned
• false: Includes the latest in-progress bar",
"type": "text/plain"
},
"key": "real_time_required",
"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"
}
}
```