SVM Transactions

Build unsigned transactions for token swaps.

Get Buy Transaction

Build an unsigned transaction for buying tokens. Endpoint: /svm/buy/transaction

Parameter	Type	Required	Description
`chain`	string	Yes	Always `sol`
`token`	string	Yes	Token mint address
`swapMode`	string	Yes	`ExactIn` or `ExactOut`
`amountIn`	string	Yes	Amount of SOL in lamports
`wallet`	string	Yes	Wallet public key
`slippageBps`	number	No	Slippage tolerance (default: 100 = 1%)
`feeBps`	number	No	Fee in basis points (0-175)
`feeRecipient`	string	No	Wallet to receive fees
`sendRoute`	string	No	`Public`, `PublicWithNonce`, `Antimev`, or `AntimevWithNonce`
`prioFees`	string	No	Priority fees (see below)
`bribeFees`	string	Based on sendRoute	bribe fees (see below)
`nonceAccount`	string	Based on sendRoute	Nonce account for transaction exclusivity
`pool`	string	No	When supplied, this parameter restricts quoting to the specified pool, subject to liquidity and compatibility requirements.

Example:

Socket.IO
HTTP

socket.emit("/svm/buy/transaction", {
  chain: "sol",
  token: "DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263",
  swapMode: "ExactIn",
  amountIn: "1000000000",
  wallet: "YourSolanaWalletPublicKey",
  slippageBps: 100,
  prioFees: "100000",
  pool: "PoolAddress", // Optional: specific pool address
});

await fetch("https://api.chainworks.co/svm/buy/transaction", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    Authorization: CHAINWORKS_API_AUTH_TOKEN,
  },
  body: JSON.stringify({
    chain: "sol",
    token: "DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263",
    swapMode: "ExactIn",
    amountIn: "1000000000",
    wallet: "YourSolanaWalletPublicKey",
    slippageBps: 100,
    prioFees: "100000",
    pool: "PoolAddress", // Optional: specific pool address
  }),
});

Get Sell Transaction

Endpoint: /svm/sell/transaction Same parameters as buy transaction.

Create Nonce Account Transaction

Build an unsigned transaction that creates a durable nonce account. A nonce account is required by the PublicWithNonce and AntimevWithNonce send routes (see Fees & Routes). Sign the returned transaction and submit it with Send Transaction, then pass the new account address as the nonceAccount on future requests. Endpoint: /svm/nonce-account/create/transaction

Parameter	Type	Required	Description
`chain`	string	Yes	Always `sol`
`wallet`	string	Yes	Public key that will own and fund the nonce account
`sendRoute`	string	No	`Public`, `PublicWithNonce`, `Antimev`, or `AntimevWithNonce` (see Fees & Routes)
`prioFees`	string	No	Priority fees in lamports
`bribeFees`	string	Based on sendRoute	Bribe fees in lamports
`nonceAccount`	string	Based on sendRoute	Existing nonce account, when the chosen route requires one

Example:

Socket.IO
HTTP

socket.emit("/svm/nonce-account/create/transaction", {
  chain: "sol",
  wallet: "YourSolanaWalletPublicKey",
});

await fetch("https://api.chainworks.co/svm/nonce-account/create/transaction", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    Authorization: CHAINWORKS_API_AUTH_TOKEN,
  },
  body: JSON.stringify({
    chain: "sol",
    wallet: "YourSolanaWalletPublicKey",
  }),
});

Getting Started

SVM (Solana)

EVM Chains

Reference

Get Buy Transaction

Get Sell Transaction

Create Nonce Account Transaction

​Get Buy Transaction

​Get Sell Transaction

​Create Nonce Account Transaction

Get Buy Transaction

Get Sell Transaction

Create Nonce Account Transaction