Swap API Documentation

The Swap API provides a simple interface for token swaps on Solana with competitive fees and deep liquidity.

Supported DEXs & Tokens

The API integrates with the following DEXs and token platforms:

Moonshot
Pump.fun tokens
PumpSwap tokens
Raydium
Raydium CPMM
Raydium Launchpad
Orca
Meteora
Any token supported by Jupiter

Quick Links

Libraries

Easy to use JavaScript and Python libaries.

Parameters

Required and optional parameters for swap requests

Implementation

Code examples for web and Node.js integration

Fee Structure

API usage fees and volume discounts

Endpoints

curl --location 'https://swap-v2.solanatracker.io/swap?from=So11111111111111111111111111111111111111112&to=4k3Dyjzvzp8eMZWUXbBCjEvwSkkk59S5iCNLY3QrkX6R&fromAmount=1&slippage=10&payer=PAYER_ADDRESS'

Use GET requests for simple swaps or when integrating with web interfaces.

Request Parameters

Both GET and POST requests support the following required parameters:

Parameter	Description	Example
`from`	The base token address	`So11111111111111111111111111111111111111112` (SOL)
`to`	The quote token address	`4k3Dyjzvzp8eMZWUXbBCjEvwSkkk59S5iCNLY3QrkX6R` (RAY)
`amount`	The amount of the base token to swap	`1`, `"auto"`, or `"50%"`
`slippage`	Maximum acceptable slippage percentage	`10`
`payer`	Public key of the wallet sending the transaction	`PAYER_ADDRESS`

Optional Parameters

Parameter	Description	Example
`priorityFee`	Amount in SOL to increase transaction priority	`0.000005` or `"auto"`
`priorityFeeLevel`	Priority level when `priorityFee` is set to `"auto"`	`"min"`, `"low"`, `"medium"`, `"high"`, `"veryHigh"`, `"unsafeMax"`
`txVersion`	Transaction version	`"v0"` or `"legacy"`
`fee`	Custom fee for your users	`"WALLET_ADDRESS:PERCENTAGE"`
`feeType`	Fee application type	`"add"` or `"deduct"`
`onlyDirectRoutes`	Disable multi-hop swaps	`true` or `false` (default)

The amount parameter accepts three types of values:

Specific numeric value (e.g., 1)
"auto" to use the full wallet balance
Percentage (e.g., "50%") to use that portion of the wallet balance

The feeType parameter is set to "add" by default. The "deduct" option is only used when the from address is SOL.

For more information about priority fees, read this blog post.

Example Response

{
   "txn":"BASE64_TX",
   "rate":{
      "amountIn":1,
      "amountOut":81.631985,
      "minAmountOut":73.4687865,
      "currentPrice":0.012219167460548153,
      "executionPrice":0.010997250714493338,
      "priceImpact":0.002517,
      "fee":0.000005,
      "baseCurrency":{
         "mint":"So11111111111111111111111111111111111111112",
         "decimals":9
      },
      "quoteCurrency":{
         "mint":"4k3Dyjzvzp8eMZWUXbBCjEvwSkkk59S5iCNLY3QrkX6R",
         "decimals":6
      },
      "platformFee":9000000,
      "platformFeeUI":0.009
   },
   "timeTaken":0.016,
   "type":"legacy"
}

Integration Guide

Request a swap transaction - Call the swap endpoint with your parameters
Load the transaction - Deserialize the returned transaction
Sign the transaction - Use the appropriate wallet or keypair to sign
Send the transaction - Submit to the Solana network
Confirm the transaction - Verify the transaction succeeded

Loading the Transaction

const serializedTransactionBuffer = Buffer.from(res.txn, "base64");
let txn;
 
if (res.type === 'v0') {
  txn = VersionedTransaction.deserialize(serializedTransactionBuffer);
} else {
  txn = Transaction.from(serializedTransactionBuffer);
}
 
if (!txn) return false;

Sending the Transaction

if (res.type === 'v0' && txn) {
  await wallet.signTransaction(txn);
}
 
const txid = await wallet.sendTransaction(txn, connection, {
  skipPreflight: true,
  maxRetries: 4,
});

Use this approach for web applications with Solana Wallet Adapter.

Fees

We charge a 0.5% fee on each successful transaction.

For high-volume usage on public bots or sites, contact us to discuss reduced fees:

Email: [email protected]
Discord: Join our community server

Libraries

Parameters

Implementation

Fee Structure

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