🦋 Launch a BNB Token on Flap

Launch a token on Flap (BNB Chain). Execute each step in order. Read each reference file at the step that requires it — do not pre-load them.

⚠️ Security Notice

This skill requires sensitive capabilities that must be provided:

EVM wallet with signing capability — hardware wallet, browser wallet, MPC, or other secure signing method for BNB Chain (chain ID 56). The skill mainly focuses on constructing transaction data and then the transaction should be signed by the EVM wallet. Always verify transaction details independently before signing.
BNB mainnet RPC endpoint — a trusted RPC URL for reading blockchain state and broadcasting transactions. If not presently available, this skill will use the public fallback
```
https://bsc-dataseed.binance.org/
```
.

Directory structure

skills/launch-bnb-token-on-flap/
├── SKILL.md                        ← this file
└── references/
    ├── preflight.md                ← Step 0: prerequisites
    ├── quote-tokens.md              ← Step 1: quote token selection
    ├── vault-factory.md            ← Step 2: vault factory setup
    ├── meta-upload.md              ← Steps 3 & 6: metadata upload
    ├── tax-params.md               ← Step 4: tax parameters
    ├── salt-finding.md             ← Step 7: vanity salt mining
    └── construct-tx.md             ← Step 8: transaction construction

Step 0 — Preflight check

Before starting, verify that all required reference files are present. If any are missing, you MUST obtain them before proceeding:

Required files:

```
references/preflight.md
```
```
references/quote-tokens.md
```
```
references/vault-factory.md
```
```
references/meta-upload.md
```
```
references/tax-params.md
```
```
references/salt-finding.md
```
```
references/construct-tx.md
```

Check each file exists, then read

references/preflight.md

and verify every prerequisite is satisfied before continuing.

Step 1 — Choose token type and quote token

Every token launched by this skill is a Flap Tax Token V3 (

TOKEN_TAXED_V3

). Standard (non-tax) tokens are out of scope for this skill.

Determine the token configuration:

Use a Vault Factory for revenue management?
Which quote token to launch against? Read
```
references/quote-tokens.md
```
to fetch the current list of supported quote tokens on BNB Chain and resolve the
```
quoteToken
```
address and
```
decimals
```
to use in later steps. Defaults to native BNB if the user has no preference.

Decision map:

Choice	Contract to call
Tax token, no vault	`Portal.newTokenV6` with `tokenVersion = TOKEN_TAXED_V3`
Tax token + vault	`VaultPortal.newTokenV6WithVault` with `tokenVersion = TOKEN_TAXED_V3`

Step 2 — Vault Factory setup (tax + vault only)

Read

references/vault-factory.md

to:

Determine the vault factory address to use.
Call the factory's
```
vaultDataSchema()
```
to understand the required
```
vaultData
```
encoding.
Determine the values needed to encode
```
vaultData
```
.

Skip this step for tax tokens without a vault.

Step 3 — Token metadata

Determine the following token metadata fields:

Required:
```
name
```
,
```
symbol
```
, image file path
Optional:
```
description
```
,
```
twitter
```
handle,
```
telegram
```
handle (omit if not available)

Read

references/meta-upload.md

when ready to upload the image and construct the metadata JSON.

Step 4 — Tax parameters

Read

references/tax-params.md

to determine and validate:

```
buyTaxRate
```
,
```
sellTaxRate
```
```
taxDuration
```
,
```
antiFarmerDuration
```
```
mktBps
```
,
```
deflationBps
```
,
```
dividendBps
```
,
```
lpBps
```
```
minimumShareBalance
```
```
beneficiary
```
address (only for tax token without vault)

Step 5 — Launch buy amount

Determine

quoteAmt

: the amount of the chosen quote token (Step 1) to spend on the initial buy at launch, in human units. Convert to base units using the quote token's

decimals

(see

references/quote-tokens.md

) before encoding. If the quote token is native BNB, this also equals the

msg.value

of the transaction; for any other (ERC-20) quote token,

msg.value

and the wallet must instead hold and approve

quoteAmt

of that token beforehand. Use

to skip the initial buy.

Step 6 — Upload metadata

references/meta-upload.md

to upload the image and metadata JSON to Flap's upload API. Store the returned IPFS CID as

meta

Step 7 — Find the salt

Read

references/salt-finding.md

to mine a vanity salt using CREATE2 prediction:

Tax token address must end in
```
7777
```
.

Save the resulting

salt

(bytes32) and the predicted

tokenAddress

Step 8 — Construct the EVM transaction

Read

references/construct-tx.md

to assemble the full calldata,

value

, and

to

address for the correct contract entry point (

Portal

VaultPortal

Step 9 — Send the transaction

Broadcast the constructed transaction to BNB Chain using the available wallet. After confirmation, report the token address and a link to

https://flap.sh/bnb/<tokenAddress>

launch-bnb-token-on-flap

NPX Install

Tags

SKILL.md Content

🦋 Launch a BNB Token on Flap

⚠️ Security Notice

Directory structure

Step 0 — Preflight check

Step 1 — Choose token type and quote token

Step 2 — Vault Factory setup (tax + vault only)

Step 3 — Token metadata

Step 4 — Tax parameters

Step 5 — Launch buy amount

Step 6 — Upload metadata

Step 7 — Find the salt

Step 8 — Construct the EVM transaction

Step 9 — Send the transaction