Crypto Tokens OHLC Candle K-Line API - Real-Time & Historical Price Data

Get real-time and historical OHLC (Open, High, Low, Close) candle data, K-line charts, and price analytics for crypto tokens across all supported blockchains including Ethereum, Solana, BSC, Polygon, and Tron.

What is OHLC Data?

OHLC (Open, High, Low, Close) data, also known as candlestick or K-line data, is the foundation of technical analysis in cryptocurrency trading. Each OHLC candle represents price movement over a specific time interval:

• Open: The first price recorded in the interval
• High: The highest price reached during the interval
• Low: The lowest price reached during the interval
• Close: The last price recorded in the interval

Our Crypto Price API provides pre-aggregated OHLC data with ultra-low latency, perfect for building trading applications, charting libraries, and real-time analytics dashboards.

Important Note: The Crypto Price API currently provides real-time data and the last 7 days of price history. For full historical OHLC data beyond 7 days, you should use DEXTradeByToken, which supports both real-time and complete historical data.

Getting Started

Quick Start Steps

1. Get API Key: Sign up at Bitquery IDE to get your API key
2. Choose Your Method: git s
   • GraphQL Queries: For APIs
   • WebSocket Streams: For real-time data feeds
   • Kafka: For high-throughput applications with high degree of relibility
3. Select the Right Cube: Choose between Currency, Tokens, or Pairs based on your needs
4. Start with Examples: Use our ready-to-run examples below

Your First OHLC Query

Get real-time Bitcoin OHLC data across all chains:

subscription {
  Trading {
    Currencies(
      where: {
        Currency: { Id: { is: "bid:bitcoin" } },
        Interval: { Time: { Duration: { eq: 60 } } }
      }
    ) {
      Currency {
        Id
        Name
        Symbol
      }
      Price {
        Ohlc {
          Open
          High
          Low
          Close
        }
      }
      Volume {
        Usd
      }
    }
  }
}

Run this query ➤

API Endpoints

• GraphQL Endpoint: https://streaming.bitquery.io/graphql
• EAP Endpoint: https://streaming.bitquery.io/eap
• Topic: trading.prices. Please contact sales for a trial username, password.

Why Use Our OHLC API?

Pre-Aggregated Data

• No need to calculate OHLC from raw trade data
• Ready-to-use candlestick data for any time interval
• Optimized for performance and accuracy
• Uses pre-aggregated price data updated in real-time

Multi-Chain Support

• Get OHLC data across all major blockchains
• Chain-agnostic currency views (e.g., Bitcoin across all chains)
• Cross-chain price aggregation

Real-Time Streaming

• WebSocket subscriptions for live OHLC updates
• Kafka streams for high-throughput applications
• Sub-second latency for trading applications

Advanced Analytics

• Moving averages (SMA, WMA, EMA)
• Volume-weighted prices
• Price change calculations
• Technical indicators

Crypto Price API vs DEXTradeByToken

Understanding the key differences between these two approaches for getting OHLC data:

Feature	Crypto Price API	DEXTradeByToken
Data Availability	Real-time + Last 7 days	Real-time + Complete historical
Data Processing	Pre-aggregated and real time aggregation of price data	Raw trades aggregated on-the-fly
Data Quality	Filtered, clean price feed	All trades included

When to Use Crypto Price API:

• Real-time trading applications requiring normalized pricing
• Live charting and dashboards with aggregated price feeds
• High-frequency trading strategies with sub-second updates
• Limit order execution with reliable mark prices
• Futures trading and derivatives pricing
• Lending and borrowing protocols requiring accurate rates
• DeFi applications needing real-time price oracles
• Any application requiring reliable real-time price streams
• Fixed time intervals available due to pre-aggregated data

When to Use DEXTradeByTokens API:

• When Actual Trades are required
• Complete price history requirements
• Any time interval can be used as it do aggregation in real time

Supported Time Intervals

Our Crypto Price API OHLC API supports fixed time intervals optimized for different trading strategies:

Interval	Duration
1 second	1s
3 seconds	3s
5 seconds	5s
10 seconds	10s
30 seconds	30s
1 minute	60s
5 minutes	300s
15 minutes	900s
30 minutes	1800s
1 hour	3600s

Volume-Based Aggregation

For volume-driven analysis, we also support volume-based intervals:

• $1,000 USD
• $10,000 USD
• $100,000 USD
• $1,000,000 USD

Choosing the Right Cube for OHLC Data

The Crypto Price API offers three different cubes for accessing OHLC data. Understanding which cube to use is crucial for getting the right data for your specific use case:

Before we dive into the cubes, let's clarify the key terminology:

Currency - The underlying asset (e.g., BTC, ETH, SOL) Token - Specific implementations of a currency on blockchains (e.g., cbBTC, WBTC are Bitcoin tokens) Pair - Trading pairs between two assets (e.g., cbBTC/ETH, WBTC/ETH, WBTC/SOL)

Currency Cube - Chain-Agnostic Aggregated View

Use the Currency cube when you want a unified price view of an asset across all blockchains.

Key Features:

• Aggregates all token representations of the same underlying asset for example for BTC it will combine multiple tokens like WBTC, cbBTC, LBTC etc.
• Can provide both chain specific and chain agnostic prices
• Can provide only USD-quoted prices
• Can combine volume and price data from all chains

Learn more about Currency Cube ➤

Tokens Cube - Chain-Specific Token Data

Use the Tokens cube when you need OHLC data for a specific token on a specific blockchain.

Key Features:

• Aggregates across all pairs for that token
• Can provide both chain specific and chain agnostic prices
• Can provide only USD-quoted prices
• Can combine volume and price data from all chains

Learn more about Tokens Cube ➤

Pairs Cube - Trading Pair Specific Data

Use the Pairs cube when you need OHLC data for specific trading pairs on specific DEXs.

Key Features:

• Pair-specific OHLC data (e.g., ETH/USDC on Uniswap)
• Can be quoted in USD or quote token
• Market/DEX-specific data
• Most granular level of price data

Learn more about Pairs Cube ➤

Real-Time OHLC Stream Examples

1. Live Bitcoin OHLC Across All Chains

Stream real-time Bitcoin OHLC data aggregated from all supported blockchains (Bitcoin, Ethereum WBTC, Solana, etc.) with 60-second intervals:

subscription {
  Trading {
    Currencies(
      where: {
        Currency: { Id: { is: "bid:bitcoin" } },
        Interval: { Time: { Duration: { eq: 60 } } }
      }
    ) {
      Currency {
        Id
        Name
        Symbol
      }
      Block {
        Date
        Time
        Timestamp
      }
      Interval {
        Time {
          Start
          Duration
          End
        }
      }
      Volume {
        Base
        BaseAttributedToUsd
        Quote
        Usd
      }
      Price {
        IsQuotedInUsd
        Ohlc {
          Open    # First price in interval
          High    # Highest price in interval
          Low     # Lowest price in interval
          Close   # Last price in interval
        }
        Average {
          Mean
          SimpleMoving
          WeightedSimpleMoving
          ExponentialMoving
        }
      }
    }
  }
}

Run Live Stream ➤

2. Ethereum OHLC on All DEXs

Get real-time Ethereum OHLC data from all decentralized exchanges:

subscription {
  Trading {
    Pairs(
      where: {Currency: {Id: {is: "bid:eth"}}, Interval: {Time: {Duration: {eq: 60}}}}
    ) {
      Token {
        Symbol
        Network
        Address
      }
      QuoteToken {
        Symbol
        Network
        Address
      }
      Market {
        Name
        Protocol
        Network
        Address
      }
      Interval {
        Time {
          Start
          Duration
          End
        }
      }
      Volume {
        Base
        Quote
        Usd
      }
      Price {
        IsQuotedInUsd
        Ohlc {
          Open
          High
          Low
          Close
        }
        Average {
          Mean
          SimpleMoving
          WeightedSimpleMoving
          ExponentialMoving
        }
      }
    }
  }
}

Run Live Stream ➤

3. Solana Token OHLC Stream

Monitor all Solana tokens with real-time OHLC data:

subscription {
  Trading {
    Tokens(
      where: {
        Token: { Network: { is: "Solana" } },
        Interval: { Time: { Duration: { eq: 60 } } }
      }
    ) {
      Token {
        Address
        Id
        IsNative
        Name
        Network
        Symbol
        TokenId
      }
      Block {
        Date
        Time
        Timestamp
      }
      Interval {
        Time {
          Start
          Duration
          End
        }
      }
      Volume {
        Base
        Quote
        Usd
      }
      Price {
        IsQuotedInUsd
        Ohlc {
          Close
          High
          Low
          Open
        }
        Average {
          ExponentialMoving
          Mean
          SimpleMoving
          WeightedSimpleMoving
        }
      }
    }
  }
}

Run Live Stream ➤

Historical OHLC Queries

Note: The following examples work for the last 7 days of data. For historical data beyond 7 days, use DEXTradeByToken.

1. Bitcoin Historical OHLC (Last 7 Days)

Get historical Bitcoin OHLC data for the last 7 days.

Run Query

{
  Trading {
    Currencies(
      where: {
        Currency: { Id: { is: "bid:bitcoin" } },
        Interval: { Time: { Duration: { eq: 3600 } } },
        Block: {Time:{
          since_relative:{days_ago:7}
        }}
      },
      limit: { count: 240 },
      orderBy: { descending: Block_Time }
    ) {
      Currency {
        Id
        Name
        Symbol
      }
      Block {
        Date
        Time
        Timestamp
      }
      Interval {
        Time {
          Start
          Duration
          End
        }
      }
      Volume {
        Base
        BaseAttributedToUsd
        Quote
        Usd
      }
      Price {
        IsQuotedInUsd
        Ohlc {
          Open
          High
          Low
          Close
        }
        Average {
          Mean
          SimpleMoving
          WeightedSimpleMoving
          ExponentialMoving
        }
      }
    }
  }
}

2. Top 10 Tokens by 5-Minute Price Change

Find the biggest movers with OHLC data and price change calculations:

{
  Trading {
    Tokens(
      limit: { count: 10 }
      orderBy: { descendingByField: "change" }
      where: {
        Price: { IsQuotedInUsd: true }
        Volume: { Usd: { gt: 100000 } }
        Interval: { Time: { Duration: { eq: 300 } } }
      }
    ) {
      Token {
        Address
        Id
        IsNative
        Name
        Network
        Symbol
        TokenId
      }
      Currency {
        Symbol
        Id
        Name
      }
      Interval {
        Time {
          Start
          End
          Duration
        }
      }
      Volume {
        Base
        BaseAttributedToUsd
        Quote
        Usd
      }
      Price {
        IsQuotedInUsd
        Ohlc {
          Close
          High
          Low
          Open
        }
        Average {
          Estimate
          ExponentialMoving
          Mean
          SimpleMoving
          WeightedSimpleMoving
        }
      }
      diff: calculate(expression: "Price_Ohlc_Close - Price_Ohlc_Open")
      change: calculate(expression: "round(($diff / Price_Ohlc_Open), 3) * 100")
    }
  }
}

Run Query ➤

DEX-Specific OHLC Streams

1. Uniswap v3 OHLC Stream

Monitor all tokens on Uniswap v3 with 1-second OHLC data:

subscription {
  Trading {
    Pairs(
      where: {
        Interval: { Time: { Duration: { eq: 1 } } },
        Price: { IsQuotedInUsd: true },
        Market: { 
          Network: { is: "Ethereum" },
          Address: { is: "0x1f98431c8ad98523631ae4a59f267346ea31f984" }
        }
      }
    ) {
      Market {
        Protocol
        Program
        Network
        Name
        Address
      }
      Block {
        Date
        Time
        Timestamp
      }
      Interval {
        Time {
          Start
          Duration
          End
        }
      }
      Volume {
        Base
        Quote
        Usd
      }
      Price {
        Ohlc {
          Close
          High
          Low
          Open
        }
        IsQuotedInUsd
      }
      Currency {
        Symbol
        Name
        Id
      }
      QuoteCurrency {
        Name
        Symbol
        Id
      }
      Token {
        Name
        Symbol
        Address
        Id
        NetworkBid
      }
      QuoteToken {
        Name
        Symbol
        Id
        Address
        NetworkBid
      }
    }
  }
}

Run Stream ➤

2. Raydium OHLC Stream (Solana)

Track all tokens on Raydium with real-time OHLC data:

subscription {
  Trading {
    Pairs(
      where: {
        Interval: { Time: { Duration: { eq: 1 } } },
        Price: { IsQuotedInUsd: true },
        Market: { 
          Network: { is: "Solana" },
          Program: { is: "675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8" }
        }
      }
    ) {
      Market {
        Protocol
        Program
        Network
        Name
        Address
      }
      Block {
        Date
        Time
        Timestamp
      }
      Interval {
        Time {
          Start
          Duration
          End
        }
      }
      Volume {
        Base
        Quote
        Usd
      }
      Price {
        Ohlc {
          Close
          High
          Low
          Open
        }
        IsQuotedInUsd
      }
      Currency {
        Symbol
        Name
        Id
      }
      QuoteCurrency {
        Name
        Symbol
        Id
      }
      Token {
        Name
        Symbol
        Address
        Id
        NetworkBid
      }
      QuoteToken {
        Name
        Symbol
        Id
        Address
        NetworkBid
      }
    }
  }
}

Run Stream ➤

3. PancakeSwap v3 OHLC Stream (BSC)

Monitor BSC tokens on PancakeSwap v3:

subscription {
  Trading {
    Pairs(
      where: {
        Interval: { Time: { Duration: { eq: 1 } } },
        Price: { IsQuotedInUsd: true },
        Market: { 
          Network: { is: "Binance Smart Chain" },
          Address: { is: "0x0bfbcf9fa4f9c56b0f40a671ad40e0805a091865" }
        }
      }
    ) {
      Market {
        Protocol
        Program
        Network
        Name
        Address
      }
      Block {
        Date
        Time
        Timestamp
      }
      Interval {
        Time {
          Start
          Duration
          End
        }
      }
      Volume {
        Base
        Quote
        Usd
      }
      Price {
        Ohlc {
          Close
          High
          Low
          Open
        }
        IsQuotedInUsd
      }
      Currency {
        Symbol
        Name
        Id
      }
      QuoteCurrency {
        Name
        Symbol
        Id
      }
      Token {
        Name
        Symbol
        Address
        Id
        NetworkBid
      }
      QuoteToken {
        Name
        Symbol
        Id
        Address
        NetworkBid
      }
    }
  }
}

Run Stream ➤

Kafka Streaming for OHLC Data

For high-throughput applications, use our Kafka streams to get real-time OHLC data:

Kafka Topic: trading.prices

The Kafka topic delivers real-time, pre-aggregated OHLC data for all supported tokens and currencies.

Schema: Protobuf Schema

Packages:

• Python Package
• NPM Package

Kafka Consumer Example (Python)

from kafka import KafkaConsumer
import bitquery_pb2

# Configure Kafka consumer
consumer = KafkaConsumer(
    'trading.prices',
    bootstrap_servers=['your-kafka-broker:9092'],
    value_deserializer=lambda m: bitquery_pb2.PriceIndexMessage().ParseFromString(m)
)

# Consume OHLC data
for message in consumer:
    price_data = message.value
    
    # Extract OHLC data
    ohlc = price_data.price.ohlc
    print(f"Token: {price_data.token.symbol}")
    print(f"Open: {ohlc.open}")
    print(f"High: {ohlc.high}")
    print(f"Low: {ohlc.low}")
    print(f"Close: {ohlc.close}")
    print(f"Volume: {price_data.volume.usd}")
    print("---")

Kafka Consumer Example (Node.js)

const kafka = require('kafkajs');
const { PriceIndexMessage } = require('bitquery-protobuf-schema');

const client = kafka({
  clientId: 'ohlc-consumer',
  brokers: ['your-kafka-broker:9092']
});

const consumer = client.consumer({ groupId: 'ohlc-group' });

async function run() {
  await consumer.connect();
  await consumer.subscribe({ topic: 'trading.prices' });
  
  await consumer.run({
    eachMessage: async ({ topic, partition, message }) => {
      const priceData = PriceIndexMessage.decode(message.value);
      
      // Extract OHLC data
      const ohlc = priceData.price.ohlc;
      console.log(`Token: ${priceData.token.symbol}`);
      console.log(`Open: ${ohlc.open}`);
      console.log(`High: ${ohlc.high}`);
      console.log(`Low: ${ohlc.low}`);
      console.log(`Close: ${ohlc.close}`);
      console.log(`Volume: ${priceData.volume.usd}`);
      console.log('---');
    },
  });
}

run().catch(console.error);

TradingView Integration

Our OHLC API is perfect for TradingView charting. Use our ready-to-use SDK:

TradingView SDK

import { BitqueryTradingViewDatafeed } from '@bitquery/tradingview-sdk';

const datafeed = new BitqueryTradingViewDatafeed({
  apiKey: 'your-bitquery-api-key',
  token: 'BTC', // or any supported token
  interval: '1m', // 1m, 5m, 15m, 1h, etc.
});

// Initialize TradingView widget
const widget = new TradingView.widget({
  symbol: 'BTC/USD',
  interval: '1m',
  container: 'tradingview_chart',
  datafeed: datafeed,
  library_path: '/tradingview/',
  locale: 'en',
  disabled_features: ['use_localstorage_for_settings'],
  enabled_features: ['study_templates'],
  charts_storage_url: 'https://saveload.tradingview.com',
  charts_storage_api_version: '1.1',
  client_id: 'tradingview.com',
  user_id: 'public_user_id',
  fullscreen: false,
  autosize: true,
});

Get TradingView SDK ➤

Advanced OHLC Analytics

1. Price Change Analysis

Calculate percentage price changes using expressions:

{
  Trading {
    Tokens(
      where: {
        Price: { IsQuotedInUsd: true },
        Volume: { Usd: { gt: 100000 } },
        Interval: { Time: { Duration: { eq: 300 } } }
      }
    ) {
      Token {
        Symbol
        Network
      }
      Price {
        Ohlc {
          Open
          Close
        }
      }
      # Calculate price change percentage
      priceChange: calculate(expression: "((Price_Ohlc_Close - Price_Ohlc_Open) / Price_Ohlc_Open) * 100")
      # Calculate absolute price change
      priceDiff: calculate(expression: "Price_Ohlc_Close - Price_Ohlc_Open")
    }
  }
}

2. Volume-Weighted OHLC

Get volume-weighted OHLC data for more accurate price representation:

subscription {
  Trading {
    Pairs(
      where: {
        Currency: { Id: { is: "bid:eth" } },
        Interval: { Time: { Duration: { eq: 60 } } }
      }
    ) {
      Token {
        Symbol
      }
      Volume {
        Base
        Quote
        Usd
      }
      Price {
        Ohlc {
          Open
          High
          Low
          Close
        }
        Average {
          WeightedSimpleMoving  # Volume-weighted average
          Mean                  # Simple average
        }
      }
    }
  }
}

3. Cross-Chain Arbitrage Detection

Find arbitrage opportunities using OHLC data across chains:

{
  Trading {
    Pairs(
      where: {
        Currency: { Id: { is: "bid:bitcoin" } },
        QuoteCurrency: { Id: { is: "usdt" } }
      },
      limit: { count: 10 },
      orderBy: { descending: Block_Time },
      limitBy: { by: Market_Address, count: 1 }
    ) {
      Currency {
        Name
        Symbol
      }
      Market {
        Name
        Network
        Address
      }
      Price {
        Ohlc {
          Close
        }
        Average {
          Mean
        }
      }
      QuoteCurrency {
        Symbol
      }
    }
  }
}

Run Query ➤

Supported Blockchains

Our OHLC API supports all major blockchains:

• Ethereum - ETH, ERC-20 tokens
• Solana - SOL, SPL tokens
• Binance Smart Chain (BSC) - BNB, BEP-20 tokens
• Polygon - MATIC, ERC-20 tokens
• Arbitrum - ETH, ERC-20 tokens
• Optimism - ETH, ERC-20 tokens
• Base - ETH, ERC-20 tokens
• Tron - TRX, TRC-20 tokens

API Endpoints

• GraphQL Endpoint: https://streaming.bitquery.io/graphql
• EAP Endpoint: https://streaming.bitquery.io/eap
• Kafka Broker: streaming.bitquery.io:9092
• Topic: trading.prices

Best Practices

1. Choose the Right API: Use Crypto Price API for real-time data and recent history (7 days), DEXTradeByToken for complete historical data
2. Choose the Right Interval: Use 1s for high-frequency trading, 1m for standard charting
3. Use USD Quoting: Set IsQuotedInUsd: true for consistent price comparison

Support

• Documentation: Crypto Price API Docs
• IDE: Bitquery IDE
• Community: Discord
• Support: Contact Support

---

Get started with real-time OHLC data today and build the next generation of crypto trading applications.