Trade API

Raydium trade API is the fastest and easiest way to interact with Raydium liquidity. It allows you to swap for any asset with 2 requests and a signature.

Get quote parameters

Parameter	Type	Required	Description
inputMint	string	yes	Input token mint address
outputMint	string	yes	Output token mint address
amount	number	yes	Either inputAmount or outpoutAmount depending on the swap mode.
slippageBps	number	yes	Slippage tolerance in base points (0.01%).

Post parameters

Parameter	Type	Required	Description
version	string	yes	Use 'V0' for versioned transaction, and 'LEGACY' for legacy transaction.
wrapSol	boolean	no	Need to be true to accept SOL as inputToken.
unwrapSol	boolean	no	Need to set to true to unwrap wSol received as outputToken.
computeUnitPriceMicroLamports	string	yes	You can type it in manually or use Raydium priority fee API to set an automatic amount with 'String(data.data.default.h)'. The 'h' here stands for high priority. 'vh' for very high and 'm' for medium are also accepted value.
wallet	string	yes	pubkey
inputTokenAccount	string	no	default to ATA
outpoutTokenAccount	string	no	default to ATA

Guide for Raydium Trade API

You can follow the demo implementation in sdk v2 demo.

1. Installation

$ yarn add @raydium-io/raydium-sdk-v2

2. Import libraries

import { Transaction, VersionedTransaction, sendAndConfirmTransaction } from '@solana/web3.js'
import { NATIVE_MINT } from '@solana/spl-token'
import axios from 'axios'
import { connection, owner, fetchTokenAccountData } from '../config'
import { API_URLS } from '@raydium-io/raydium-sdk-v2'

3. Set up your RPC connection and wallet in a config.ts file following this template.

You can paste in a burner private key for testing purposes but it's not recommended for production.

export const owner: Keypair = Keypair.fromSecretKey(bs58.decode('<YOUR_WALLET_SECRET_KEY>'))
export const connection = new Connection('<YOUR_RPC_URL>') //<YOUR_RPC_URL>

4. Get quote (https://api-v3.raydium.io/compute/$) & and define the swap type.

const { data: swapResponse } = await axios.get<SwapCompute>(
    `${
      API_URLS.SWAP_HOST
    }/compute/swap-base-in?inputMint=${inputMint}&outputMint=${outputMint}&amount=${amount}&slippageBps=${
      slippage * 100}&txVersion=${txVersion}`
  ) // Use the URL xxx/swap-base-in or xxx/swap-base-out to define the swap type. 
 

'BaseOut' swaps will get you a quote for the ExactOut amount of token received. In this mode, slippage is inputted to the base token.

4. Serialize (https://api-v3.raydium.io/transaction/$)

 const { data: swapTransactions } = await axios.post<{
    id: string
    version: string
    success: boolean
    data: { transaction: string }[]
  }>(`${API_URLS.SWAP_HOST}/transaction/swap-base-in`, {
    computeUnitPriceMicroLamports: String(data.data.default.h),
    swapResponse,
    txVersion,
    wallet: owner.publicKey.toBase58(),
    wrapSol: isInputSol,
    unwrapSol: isOutputSol, // true means output mint receive sol, false means output mint received wsol
    inputAccount: isInputSol ? undefined : inputTokenAcc?.toBase58(),
    outputAccount: isOutputSol ? undefined : outputTokenAcc?.toBase58(),
  })

5. Deserialize

  const allTxBuf = swapTransactions.data.map((tx) => Buffer.from(tx.transaction, 'base64'))
  const allTransactions = allTxBuf.map((txBuf) =>
    isV0Tx ? VersionedTransaction.deserialize(txBuf) : Transaction.from(txBuf)
  )

  console.log(`total ${allTransactions.length} transactions`, swapTransactions)

5. Sign and execute

  let idx = 0
  if (!isV0Tx) {
    for (const tx of allTransactions) {
      console.log(`${++idx} transaction sending...`)
      const transaction = tx as Transaction
      transaction.sign(owner)
      const txId = await sendAndConfirmTransaction(connection, transaction, [owner], { skipPreflight: true })
      console.log(`${++idx} transaction confirmed, txId: ${txId}`)
    }
  } else {
    for (const tx of allTransactions) {
      idx++
      const transaction = tx as VersionedTransaction
      transaction.sign([owner])
      const txId = await connection.sendTransaction(tx as VersionedTransaction, { skipPreflight: true })
      const { lastValidBlockHeight, blockhash } = await connection.getLatestBlockhash({
        commitment: 'finalized',
      })
      console.log(`${idx} transaction sending..., txId: ${txId}`)
      await connection.confirmTransaction(
        {
          blockhash,
          lastValidBlockHeight,
          signature: txId,
        },
        'confirmed'
      )
      console.log(`${idx} transaction confirmed`)

Setting priority fee

You'll need to get historical data if you'd like to optimize your priority using Raydium API.

  // get statistical transaction fee from API
  /**
   * vh: very high
   * h: high
   * m: medium
   */
  const { data } = await axios.get<{
    id: string
    success: boolean
    data: { default: { vh: number; h: number; m: number } }
  }>(`${API_URLS.BASE_HOST}${API_URLS.PRIORITY_FEE}`)

Then, set computeUnitPriceMicroLamports to one of the default tier.

 }>(`${API_URLS.SWAP_HOST}/transaction/swap-base-in`, {
    computeUnitPriceMicroLamports: String(data.data.default.h) // or custom lamport number.

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If you are looking for a more integrated solution check Raydium SDK here:https://github.com/raydium-io/raydium-sdk-V2/tree/master

Need help troubleshooting for errors? feel free to ask questions to our dev community on Discord.