🤝🏻 Cooperation-API:🕹Integrate GMGN Solana Trading API

Welcome to integrate GMGN's Solana trading API for fast quantitative trading.

1. Query Router Endpoint (Anti-MEV Supported):

<https://gmgn.ai/defi/router/v1/sol/tx/get_swap_route?token_in_address=${inputToken}&token_out_address=${outputToken}&in_amount=${amount}&from_address=${fromAddress}&slippage=${slippage}>

Request Method: GET

API Key: Free to use, no need to request an API Key.

Input Parameters:

Parameter	Type	Description
token_in_address	string	The address of the token to spend, e.g., So11111111111111111111111111111111111111112
token_out_address	string	The address of the target token, e.g., 7EYnhQoR9YM3N7UoaKRoA44Uy8JeaZV3qyouov87awMs
in_amount	string	Amount in lamports, 100000000=0.1SOL
from_address	string	The wallet address initiating the transaction, e.g., 2kpJ5QRh16aRQ4oLZ5LnucHFDAZtEFz6omqWWMzDSNrx
slippage	float	Slippage percentage, e.g., 10 for 10%
swap_mode	string	ExactIn or ExactOut, default is ExactIn
fee	float	0.001, unit in SOL
is_anti_mev	bool	Optional, set 'true' when swap with JITO Anti-MEV

Return Parameters:

Parameter	Type	Description
code	int	Error code, 0
msg	string	Result description, success
data	Object	{ quote: { inputMint: 'So11111111111111111111111111111111111111112', inAmount: '50000000', outputMint: '7EYnhQoR9YM3N7UoaKRoA44Uy8JeaZV3qyouov87awMs', outAmount: '77920478752', otherAmountThreshold: '77530876359', swapMode: 'ExactIn', slippageBps: 50, platformFee: null, priceImpactPct: '0', routePlan: [Array], contextSlot: 240893434, timeTaken: 0.04250061 }, raw_tx: { swapTransaction: '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', lastValidBlockHeight: 221852977, prioritizationFeeLamports: 9601, recentBlockhash: 'HThJomQ74BKBYYfFewg9m5MrRwAsHjrpuTwEcohxpAEW' } }

Explanation of data.quote Fields:

Parameter	Type	Description
inputMint	string	Input token address, e.g., So11111111111111111111111111111111111111112
inAmount	string	Input token amount in lamports
outputMint	string	Output token address, e.g., 7EYnhQoR9YM3N7UoaKRoA44Uy8JeaZV3qyouov87awMs
outputAmount	string	Expected output amount in lamports
otherAmountThreshold	string	Slippage-adjusted value in lamports
swapMode	string	ExactIn or ExactOut
slippageBps	50	Slippage Bps value, with 10000 as the denominator.
platformFee	string	Platform fee, null if none
priceImpact	string	Price impact percentage, 0
routePlan	Array	Routing steps
contextSlot	int	Slot number
timeTaken	float	Time taken for routing in seconds

Explanation of routePlan Type:

Explanation of data.raw_tx Fields:

Parameter	Type	Description
swapTransaction	string	Base64-encoded unsigned transaction
lastValidBlockHeight	int	Block height at the time of transaction creation, e.g., 221852977
recentBlockhash	string	Recent block hash at the time of transaction creation, e.g., HThJomQ74BKBYYfFewg9m5MrRwAsHjrpuTwEcohxpAEW
prioritizationFeeLamports	int	Suggested prioritization fee in lamports, e.g., 9601

2. Submit Transaction Endpoint(General):

https://gmgn.ai/defi/router/v1/sol/tx/submit_signed_transaction

Request Method: POST After receiving the routing interface response, decode the base64 string and deserialize using VersionedTransaction, sign with the local wallet, and then encode the signed transaction in base64 and post to the endpoint:

  const swapTransactionBuf = Buffer.from(route.data.raw_tx.swapTransaction, 'base64')
  const transaction = VersionedTransaction.deserialize(swapTransactionBuf)
  transaction.sign([wallet.payer])
  const signedTx = transaction.serialize().toString('base64')

Request Parameters:

Parameter	Type	Description
signed_tx	string	Signed transaction, base64-encoded string

Return Fields:

Parameter	Type	Description
code	int	Error code, 0
msg	string	Error message, success
data	Object	{ hash: '3Qr9Kb8XfQiTa2E4butFRdVgWb9jTorcQaCPx3zx9fETyZhnffVdjagGU7PkwJVX8X9Js4xvUjybCaNjvFGozoLR' }

3. Submit Transaction Endpoint(Anti-MEV)

https://gmgn.ai/defi/router/v1/sol/tx/submit_signed_bundle_transaction

Request Method: POST

After receiving the routing interface response, decode the base64 string and deserialize using VersionedTransaction, sign with the local wallet, and then encode the signed transaction in base64 and post to the endpoint:

  const swapTransactionBuf = Buffer.from(route.data.raw_tx.swapTransaction, 'base64')
  const transaction = VersionedTransaction.deserialize(swapTransactionBuf)
  transaction.sign([wallet.payer])
  const signedTx = Buffer.from(transaction.serialize()).toString("base64")

Request Parameters:

signed_tx	string	Signed transaction, base64-encoded string
from_address	string	Trader's wallet

Return Parameters:

code	int	Error code, 0
msg	string	Error code, success
data	Object	{ order_id: '69D41199-5D62-4225-98C0-1FC3BA428958', bundle_id: '3Qr9Kb8XfQiTa2E4butFRdVgWb9jTorcQaCPx3zx9fETyZhnffVdjagGU7PkwJVX8X9Js4xvUjybCaNjvFGozoLR', last_valid_block_number: 123456744， tx_hash: '2atVpaMiGLwEsJsJZtT9B9DnMALofTWHmWHMAdo3kSks9Ap3NdChz73umNoUsogbyFgR5zUsAN9X8bdfPnpGHHfV' },

4. Transaction Status Query Endpoint:

https://gmgn.ai/defi/router/v1/sol/tx/get_transaction_status?hash=${hash}&last_valid_height=${lastValidBlockHeight}

Request Method: GET

Request Parameters:

Parameter	Type	Description
hash	string	Transaction hash returned after submission, e.g., 3Qr9Kb8XfQiTa2E4butFRdVgWb9jTorcQaCPx3zx9fETyZhnffVdjagGU7PkwJVX8X9Js4xvUjybCaNjvFGozoLR
last_valid_height	int	Block height at the time of transaction creation, e.g., 221852977

Return Fields:

Parameter	Type	Description
code	int	0
msg	string	success
data	Object	{ success: true, expired: false }

Explanation of data Fields:

• success: Whether the transaction was successfully added to the blockchain, true if successful.

• failed: Whether the transaction was added to the blockchain but failed, true if it failed.

• expired: Whether the transaction has expired. If expired=true and success=false, the transaction has expired and needs to be resubmitted. Generally, a transaction expires after 60 seconds.

• If success=true, the transaction has been successfully added to the blockchain.

Example code:

import { Wallet } from '@project-serum/anchor'
import { Connection, Keypair, VersionedTransaction,LAMPORTS_PER_SOL } from '@solana/web3.js'
import bs58 from 'bs58';
import fetch from 'node-fetch'
import sleep from './util/sleep.js'
const inputToken = 'So11111111111111111111111111111111111111112'
const outputToken = '7EYnhQoR9YM3N7UoaKRoA44Uy8JeaZV3qyouov87awMs'
const amount = '50000000'
const fromAddress = '2kpJ5QRh16aRQ4oLZ5LnucHFDAZtEFz6omqWWMzDSNrx'
const slippage = 0.5
// GMGN API domain
const API_HOST = 'https://gmgn.ai'
async function main() {
  // Wallet initialization, skip this step if using Phantom
  const wallet = new Wallet(Keypair.fromSecretKey(bs58.decode(process.env.PRIVATE_KEY || '')))
  console.log(`wallet address: ${wallet.publicKey.toString()}`)
  // Get quote and unsigned transaction
  const quoteUrl = `${AdPI_HOST}/defi/router/v1/sol/tx/get_swap_route?token_in_address=${inputToken}&token_out_address=${outputToken}&in_amount=${amount}&from_address=${fromAddress}&slippage=${slippage}`
  let route = await fetch(quoteUrl)
  route = await route.json()
  console.log(route)
  // Sign transaction
  const swapTransactionBuf = Buffer.from(route.data.raw_tx.swapTransaction, 'base64')
  const transaction = VersionedTransaction.deserialize(swapTransactionBuf)
  transaction.sign([wallet.payer])
  const signedTx = Buffer.from(transaction.serialize()).toString('base64')
  console.log(signedTx)
  // Submit transaction
  let res = await fetch(`${API_HOST}/defi/router/v1/sol/tx/submit_signed_transaction`,
    {
      method: 'POST',
      headers: {'content-type': 'application/json'},
      body: JSON.stringify(
        {
          "signed_tx": signedTx
        }
      )
    })
  res = await res.json()
  console.log(res)
  // Check transaction status
  // If the transaction is successful, success returns true
  // If is does not go through，expired=true will be returned after 60 seconds
  while (true) {
    const hash =  res.data.hash
    const lastValidBlockHeight = route.data.raw_tx.lastValidBlockHeight
    const statusUrl = `${API_HOST}/defi/router/v1/sol/tx/get_transaction_status?hash=${hash}&last_valid_height=${lastValidBlockHeight}`
    let status = await fetch(statusUrl)
    status = await status.json()
    console.log(status)
    if (status && (status.data.success === true || status.data.expired === true))
      break
    await sleep(1000)
  }
}
main()