The OHLCV Pairs stream provides real-time updates on the Open, High, Low, Close prices and Volume of one or many token pairs at configurable intervals. This documentation follows our standard streaming API structure.

Credit Cost

TBD

Supported Chains

  • Base Mainnet
  • BSC Mainnet
  • Ethereum Mainnet

Supported DEXes

  • Uniswap V2, V3
  • PancakeSwap

This stream is currently in Beta. It is stable for testing and evaluation but may undergo changes in schema or behavior as we continue to improve it. No API credits are currently charged.

We welcome your feedback so please reach out to us directly to report issues or request features.

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Parameters

ParameterTypeRequiredDescription
chain_nameenumYesChain name to filter events (e.g. BASE_MAINNET, ETH_MAINNET, BSC_MAINNET)
pair_addressesarray<string>YesArray of pair addresses on supported DEXes and chains to track
intervalenumYesFrequency of OHLCV data updates, ranging from sub-second to one day
timeframeenumYesHistorical lookback period for OHLCV data, ranging from one minute to one month
limitintNoMaximum number of items returned per stream message to control payload size

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Subscription

You can subscribe to the ohlcvCandlesForPair endpoint to receive the pricing events.

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Basic Subscription Query

subscription {
  ohlcvCandlesForPair(
    chain_name: BASE_MAINNET
    pair_addresses: ["0x9c087Eb773291e50CF6c6a90ef0F4500e349B903"]
    interval: ONE_MINUTE
    timeframe: ONE_HOUR
  ) {
    chain_name
    pair_address
    interval
    timeframe
    timestamp
    open
    high
    low
    close
    volume
    volume_usd
    quote_rate
    quote_rate_usd
  }
}

​
Complete Subscription Query

subscription {
  ohlcvCandlesForPair(
    chain_name: BASE_MAINNET
    pair_addresses: [
      "0x9c087Eb773291e50CF6c6a90ef0F4500e349B903"
      "0x4b0Aaf3EBb163dd45F663b38b6d93f6093EBC2d3"
    ]
    interval: ONE_MINUTE
    timeframe: ONE_HOUR
    limit: 1000
  ) {
    chain_name
    pair_address
    interval
    timeframe
    timestamp
    open
    high
    low
    close
    volume
    volume_usd
    quote_rate
    quote_rate_usd
    base_token {
      contract_name
      contract_address
      contract_decimals
      contract_ticker_symbol
    }
    quote_token {
      contract_name
      contract_address
      contract_decimals
      contract_ticker_symbol
    }
  }
}

​
Response Format

Here’s an example of the response data structure:

{
  "data": {
    "ohlcvCandlesForPair": [
      {
        "chain_name": "BASE_MAINNET",
        "pair_address": "0x4b0Aaf3EBb163dd45F663b38b6d93f6093EBC2d3",
        "interval": "ONE_MINUTE",
        "timeframe": "ONE_HOUR",
        "timestamp": "2025-05-29T19:53:00Z",
        "open": 4113151.389790023,
        "high": 4196665.022060752,
        "low": 4113151.389790023,
        "close": 4196665.022060752,
        "volume": 325.7615900713698,
        "volume_usd": 0.2079461510855417,
        "quote_rate": 4196665.022060752,
        "quote_rate_usd": 0.0006319231563715365,
        "quote_token": {
          "contract_name": "Wrapped Ether",
          "contract_symbol": "WETH",
          "contract_address": "0x4200000000000000000000000000000000000006",
          "contract_decimals": 18
        },
        "base_token": {
          "contract_name": "Toshi",
          "contract_symbol": "TOSHI",
          "contract_address": "0xac1bd2486aaf3b5c0fc3fd868558b082a531b2b4",
          "contract_decimals": 18
        }
      }
    ]
  }
}

​
Field Descriptions

FieldTypeDescription
chain_namestringThe blockchain network where the pair exists
pair_addressstringThe address of the DEX pair
intervalenumThe candle interval
timeframeenumThe requested timeframe
timestampstringISO timestamp for the candle
openfloatOpening price for the interval
highfloatHighest price during the interval
lowfloatLowest price during the interval
closefloatClosing price for the interval
volumefloatTrading volume during the interval
volume_usdfloatTrading volume in USD
quote_ratefloatExchange rate between base and quote tokens
quote_rate_usdfloatUSD value of the quote rate
base_tokenobjectInformation about the base token in the pair
quote_tokenobjectInformation about the quote token in the pair

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