> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainworks.co/llms.txt
> Use this file to discover all available pages before exploring further.

# SVM Transactions

> Build and inspect Solana swap transactions through the Chainworks API.

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:**

<Tabs>
  <Tab title="Socket.IO">
    ```typescript theme={null}
    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
    });
    ```
  </Tab>

  <Tab title="HTTP">
    ```typescript theme={null}
    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
      }),
    });
    ```
  </Tab>
</Tabs>

## 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](/svm/fees-and-routes)). Sign the returned transaction and submit it with [Send Transaction](/svm/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](/svm/fees-and-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:**

<Tabs>
  <Tab title="Socket.IO">
    ```typescript theme={null}
    socket.emit("/svm/nonce-account/create/transaction", {
      chain: "sol",
      wallet: "YourSolanaWalletPublicKey",
    });
    ```
  </Tab>

  <Tab title="HTTP">
    ```typescript theme={null}
    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",
      }),
    });
    ```
  </Tab>
</Tabs>