Construct Tx

Assemble the to, value, and data fields for the token launch transaction. Sending the transaction to the network is handled separately in Step 9.

Contract addresses (BNB mainnet)

Contract	Address
Portal	0xe2cE6ab80874Fa9Fa2aAE65D277Dd6B8e65C9De0
VaultPortal	0x90497450f2a706f1951b5bdda52B4E5d16f34C06

A — Standard token (Portal, TOKEN_V2_PERMIT)

Encode the calldata using viem's encodeFunctionData:

import { encodeFunctionData, parseEther } from "viem";

const to    = "0xe2cE6ab80874Fa9Fa2aAE65D277Dd6B8e65C9De0"; // Portal (BNB mainnet)
const value = parseEther(quoteAmtBnb);                      // msg.value == quoteAmt
const data  = encodeFunctionData({
  abi: PORTAL_ABI,
  functionName: "newTokenV6",
  args: [{
    name,
    symbol,
    meta:               ipfsCid,
    dexThresh:          1,               // FOUR_FIFTHS (80%)
    salt,
    migratorType:       0,               // V3_MIGRATOR
    quoteToken:         "0x0000000000000000000000000000000000000000",
    quoteAmt:           value,
    beneficiary:        "0x0000000000000000000000000000000000000000",
    permitData:         "0x",
    extensionID:        "0x0000000000000000000000000000000000000000000000000000000000000000",
    extensionData:      "0x",
    dexId:              0,               // DEX0 = PancakeSwap
    lpFeeProfile:       0,               // LP_FEE_PROFILE_STANDARD
    buyTaxRate:         0,
    sellTaxRate:        0,
    taxDuration:        0n,
    antiFarmerDuration: 0n,
    mktBps:             0,
    deflationBps:       0,
    dividendBps:        0,
    lpBps:              0,
    minimumShareBalance: 0n,
    dividendToken:      "0x0000000000000000000000000000000000000000",
    commissionReceiver: "0x0000000000000000000000000000000000000000",
    tokenVersion:       2,               // TOKEN_V2_PERMIT
  }],
});

B — Tax token without vault (Portal, TOKEN_TAXED_V3)

Same to address. Set migratorType to 1 (V2_MIGRATOR) and tokenVersion to 6 (TOKEN_TAXED_V3). Fill in the tax parameters as determined in Step 4.

const to    = "0xe2cE6ab80874Fa9Fa2aAE65D277Dd6B8e65C9De0"; // Portal
const value = parseEther(quoteAmtBnb);
const data  = encodeFunctionData({
  abi: PORTAL_ABI,
  functionName: "newTokenV6",
  args: [{
    name, symbol, meta: ipfsCid,
    dexThresh:          1,               // FOUR_FIFTHS (80%)
    salt,
    migratorType:       1,               // must be V2_MIGRATOR for tax tokens
    quoteToken:         "0x0000000000000000000000000000000000000000",
    quoteAmt:           value,
    beneficiary,                         // required for tax token without vault
    permitData:         "0x",
    extensionID:        "0x0000000000000000000000000000000000000000000000000000000000000000",
    extensionData:      "0x",
    dexId:              0,
    lpFeeProfile:       0,
    buyTaxRate,
    sellTaxRate,
    taxDuration,
    antiFarmerDuration,
    mktBps,
    deflationBps,
    dividendBps,
    lpBps,
    minimumShareBalance,
    dividendToken:      "0x0000000000000000000000000000000000000000",
    commissionReceiver: "0x0000000000000000000000000000000000000000",
    tokenVersion:       6,               // TOKEN_TAXED_V3
  }],
});

C — Tax token with vault (VaultPortal, TOKEN_TAXED_V3)

const to    = "0x90497450f2a706f1951b5bdda52B4E5d16f34C06"; // VaultPortal
const value = parseEther(quoteAmtBnb);
const data  = encodeFunctionData({
  abi: VAULT_PORTAL_ABI,
  functionName: "newTokenV6WithVault",
  args: [{
    name, symbol, meta: ipfsCid,
    dexThresh:          1,               // FOUR_FIFTHS (80%)
    salt,
    migratorType:       1,
    quoteToken:         "0x0000000000000000000000000000000000000000",
    quoteAmt:           value,
    permitData:         "0x",
    extensionID:        "0x0000000000000000000000000000000000000000000000000000000000000000",
    extensionData:      "0x",
    dexId:              0,
    lpFeeProfile:       0,
    buyTaxRate,
    sellTaxRate,
    taxDuration,
    antiFarmerDuration,
    mktBps,
    deflationBps,
    dividendBps,
    lpBps,
    minimumShareBalance,
    dividendToken:      "0x0000000000000000000000000000000000000000",
    commissionReceiver: "0x0000000000000000000000000000000000000000",
    tokenVersion:       6,               // must be TOKEN_TAXED_V3
    vaultFactory:       vaultFactoryAddress,
    vaultData,                           // encoded bytes from vault-factory.md
  }],
});

Transaction envelope summary

Field	Value
to	Portal or VaultPortal address (see above)
value	parseEther(quoteAmtBnb) — use 0n to skip launch buy
data	ABI-encoded calldata from encodeFunctionData above
chainId	56 (BNB mainnet)

Pass { to, value, data } to whatever signing/sending mechanism is available (Step 9).

Key constraints

• migratorType must be 1 (V2_MIGRATOR) for all tax tokens.

• mktBps + deflationBps + dividendBps + lpBps must equal 10000 for tax tokens.

• tokenVersion must be 6 (TOKEN_TAXED_V3) when calling newTokenV6WithVault.

• value must equal quoteAmt. Use 0n to skip the launch buy.

• minimumShareBalance may be provided in unit of ether (e.g. 100) but must be converted to wei (parseEther("100")) before encoding in the transaction data.