OpenOcean V4 Swap API

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29Supported chains 6REST Paths 5Plans

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Supported Chains

Published on Jan 31, 2025

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OpenOcean V4 Swap API - a solution designed to deliver the fastest, rate-best, and most accurate DeFi trading API on 40+ chains

Trusted by leading projects like MetaMask, EtherFi, and Rabby Wallet, OpenOcean’s developer suite provides comprehensive DeFi integrations – including swap, DCA, cross-chain bridge – alongside real-time on-chain data and customizable trading APIs.

Fastest Response Time

Average response time under 150ms, 3.3x faster than industry leaders.
Faster response means better prices, higher success rates, and smarter execution.

Deep Liquidity & Best Swap Prices

Expanded to over 40 chains, covering 99%+ liquidity on major networks.
Intelligent routing algorithm V4 Drift ensures the best price on every swap.

Enhanced Security
- Dynamic slippage protection shields trades from MEV risks.
- Permit 2 feature (coming soon) reduces approval risks.

Monetize Your DeFi Apps

Tools include swaps, limit orders, DCA, perpetuals, cross-chain swaps, and more.
Real-time data dashboards to generate extra revenue for your project.

High Capacity & Scalability

V4 API handles over 1,000 RPS, ideal for high-frequency trading.
Reliable performance even during peak hours without UX disruption.

Get Started Today

Explore the OpenOcean API with a free starter plan and no hidden fees: apis.openocean.finance

REST Paths

Download OpenAPI Spec

GET /v4/{chain}/decodeInputData

Documentation

Decodes the provided hex-encoded transaction input data, returning the parsed token addresses, amounts, recipient address, and other transaction parameters in a human-readable format.

Sample code

Curl
Axios
Python

00
01

curl https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/decodeInputData?data=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&method=swap \
-X GET

const axios = require("axios");
(() : {
  const config = {
    headers: {
      "Content-Type": "application/json",
    },
  };
  
  axios
    .get(
      "https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/decodeInputData?data=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&method=swap",
      config
    )
    .then(function (response) {
      // handle success
      console.log(response.data);
    })
    .catch((err) : {
      // handle error
      console.log(err);
    });
})();

import requests
response = requests.get("https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/decodeInputData?data=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&method=swap")
parsed = parse(response.json())
if isinstance(parsed, Ok):
    print(parsed.result)
else:
    logging.error(parsed.message)

GET /v4/{chain}/gasPrice

Returns the current gas price on the specified chain, including recommended standard, fast, and instant gas price values.

Sample code

Curl
Axios
Python

00
01

curl https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/eth/gasPrice \
-X GET

const axios = require("axios");
(() : {
  const config = {
    headers: {
      "Content-Type": "application/json",
    },
  };
  
  axios
    .get(
      "https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/eth/gasPrice",
      config
    )
    .then(function (response) {
      // handle success
      console.log(response.data);
    })
    .catch((err) : {
      // handle error
      console.log(err);
    });
})();

import requests
response = requests.get("https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/eth/gasPrice")
parsed = parse(response.json())
if isinstance(parsed, Ok):
    print(parsed.result)
else:
    logging.error(parsed.message)

GET /v4/{chain}/getTransaction

Returns the status and details of a transaction on the specified chain using the provided transaction hash.

Sample code

Curl
Axios
Python

00
01

curl https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/getTransaction?hash=0x756b98a89714be5c640ea9922aba12e0c94bc30e5a17e111d1aa40373cc24782 \
-X GET

const axios = require("axios");
(() : {
  const config = {
    headers: {
      "Content-Type": "application/json",
    },
  };
  
  axios
    .get(
      "https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/getTransaction?hash=0x756b98a89714be5c640ea9922aba12e0c94bc30e5a17e111d1aa40373cc24782",
      config
    )
    .then(function (response) {
      // handle success
      console.log(response.data);
    })
    .catch((err) : {
      // handle error
      console.log(err);
    });
})();

import requests
response = requests.get("https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/getTransaction?hash=0x756b98a89714be5c640ea9922aba12e0c94bc30e5a17e111d1aa40373cc24782")
parsed = parse(response.json())
if isinstance(parsed, Ok):
    print(parsed.result)
else:
    logging.error(parsed.message)

GET /v4/{chain}/quote

Returns a real-time quote, including the estimated output amount, price impact, and gas cost.

Sample code

Curl
Axios
Python

00
01

curl https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/quote?inTokenAddress=0x55d398326f99059ff775485246999027b3197955&outTokenAddress=0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d&amountDecimals=5000000000000000000&gasPriceDecimals=1000000000 \
-X GET

const axios = require("axios");
(() : {
  const config = {
    headers: {
      "Content-Type": "application/json",
    },
  };
  
  axios
    .get(
      "https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/quote?inTokenAddress=0x55d398326f99059ff775485246999027b3197955&outTokenAddress=0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d&amountDecimals=5000000000000000000&gasPriceDecimals=1000000000",
      config
    )
    .then(function (response) {
      // handle success
      console.log(response.data);
    })
    .catch((err) : {
      // handle error
      console.log(err);
    });
})();

import requests
response = requests.get("https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/quote?inTokenAddress=0x55d398326f99059ff775485246999027b3197955&outTokenAddress=0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d&amountDecimals=5000000000000000000&gasPriceDecimals=1000000000")
parsed = parse(response.json())
if isinstance(parsed, Ok):
    print(parsed.result)
else:
    logging.error(parsed.message)

GET /v4/{chain}/swap

Returns a swap transaction payload, including the optimized route, expected output, and transaction data required to execute the swap on-chain.

Sample code

Curl
Axios
Python

00
01

curl https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/swap?inTokenAddress=0x55d398326f99059ff775485246999027b3197955&outTokenAddress=0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d&amount=5&gasPrice=1&slippage=1&account=0x2FF855378Cd29f120CDF9d675E959cb5422ec5f2&referrer=0xD4eb4cbB1ECbf96a1F0C67D958Ff6fBbB7B037BB \
-X GET

const axios = require("axios");
(() : {
  const config = {
    headers: {
      "Content-Type": "application/json",
    },
  };
  
  axios
    .get(
      "https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/swap?inTokenAddress=0x55d398326f99059ff775485246999027b3197955&outTokenAddress=0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d&amount=5&gasPrice=1&slippage=1&account=0x2FF855378Cd29f120CDF9d675E959cb5422ec5f2&referrer=0xD4eb4cbB1ECbf96a1F0C67D958Ff6fBbB7B037BB",
      config
    )
    .then(function (response) {
      // handle success
      console.log(response.data);
    })
    .catch((err) : {
      // handle error
      console.log(err);
    });
})();

import requests
response = requests.get("https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/swap?inTokenAddress=0x55d398326f99059ff775485246999027b3197955&outTokenAddress=0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d&amount=5&gasPrice=1&slippage=1&account=0x2FF855378Cd29f120CDF9d675E959cb5422ec5f2&referrer=0xD4eb4cbB1ECbf96a1F0C67D958Ff6fBbB7B037BB")
parsed = parse(response.json())
if isinstance(parsed, Ok):
    print(parsed.result)
else:
    logging.error(parsed.message)

GET /v4/{chain}/tokenList

Returns a list of supported tokens on the specified chain, including token addresses, symbols, decimals, and other metadata.

Sample code

Curl
Axios
Python

00
01

curl https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/tokenList \
-X GET

const axios = require("axios");
(() : {
  const config = {
    headers: {
      "Content-Type": "application/json",
    },
  };
  
  axios
    .get(
      "https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/tokenList",
      config
    )
    .then(function (response) {
      // handle success
      console.log(response.data);
    })
    .catch((err) : {
      // handle error
      console.log(err);
    });
})();

import requests
response = requests.get("https://YOUR_QUICKNODE_ENDPOINT_HERE.com/addon/807/v4/bsc/tokenList")
parsed = parse(response.json())
if isinstance(parsed, Ok):
    print(parsed.result)
else:
    logging.error(parsed.message)

Supported Chains

Published on Jan 31, 2025

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