Flap Robinhood Launch

Launch a Robinhood Chain token through Flap with ETH or a tokenized stock quote, Bundle or Graduation Bundle mode, Tax V3 or standard token kind, a selectable migration DEX, holder cleanup, and starter strategies.

Sumo supports Robinhood Flap launches on Robinhood Chain. Flap is a bonding-curve launchpad rather than a pool launch: the token trades against the Flap Portal's curve from the first block and migrates itself to a Uniswap V2 or PancakeSwap V2 pair once 80% of supply has been sold. Sumo builds the Portal create call, predicts the token address, plans the ordered curve buys against the live curve profile, and lands the creation, the dev buy and every launch buy in one transaction.

Robinhood Chain has no builder bundle API, so the launch is a single EIP-7702 transaction instead of a builder bundle: each wallet is delegated for the length of the transaction and makes its own buy from its own account, so the Portal records a distinct buyer for every wallet. If any leg fails the whole transaction reverts and nothing lands beyond gas.

Prerequisites

Before launching, make sure you have:

Token metadata ready: name, ticker, image, description, and social links
ETH on Robinhood Chain for the dev buy, bundle buys, post-graduation buys, gas reserves, and per-wallet cleanup buffers. On an ERC-20 quote the same ETH pays for the funding swap that acquires the quote
A launch plan: quote asset, token kind, migration DEX, supply control target, dev buy, bundle wallet count, holder cleanup preference, and tax settings
A wallet plan: use ready wallets from private keys, Wallet Farm, or another profile, or create new Robinhood Chain wallets / buy aged EVM wallets through Wallet Marketplace during the wizard

Fixed Flap Parameters

Flap fixes total supply at 1 billion tokens with 18 decimals. Total supply and decimals are set automatically when you choose the launchpad and are not edited in the standard Sumo flow. The quote asset the curve is priced in is yours to choose: native ETH or a supported tokenized stock or ETF from the quote picker. There is no Flap creation fee on Robinhood Chain.

Launch Flow

1. Info

Choose Robinhood Flap in the Launchpad field, then enter the token and profile details.

Field	Required	Description
Launchpad	Yes	Select Robinhood Flap. The launchpad is locked after the draft is saved.
Profile Name	Yes	Internal Sumo profile name used after launch
Token Name	Yes	Public token name
Ticker	Yes	Public token symbol, auto-uppercased
Image	Yes	JPG or PNG image, uploaded with the Flap metadata
Description	No	Public token description
X, Telegram, Website	No	Public social links included with the Flap metadata
Decimals	Set automatically	Fixed at 18 by Flap
Total Supply	Set automatically	Fixed at 1,000,000,000 tokens by Flap

2. Buy Mode

Flap plans every buy against the Flap bonding curve in the selected quote asset. Launch wallets are always funded in ETH; on an ERC-20 quote the Funding step swaps each wallet's ETH into the quote before the launch.

Launch mode

Mode	Description
Bundle	Dev and bundle wallets buy the curve only, capped one point under Flap's 80% graduation threshold (79%). The token stays on the curve after launch.
Graduation Bundle	Dev and bundle wallets buy out the curve exactly (80%). The last bundle buy crosses the threshold, Flap migrates the token to the selected V2 DEX inside that same call, and Post-Graduation Wallets keep buying from the new pair, all inside the one transaction. The target runs up to 99%.

Quote asset

Option	Description
ETH	The native curve. Every buy pays ETH straight into the curve, and no funding swap is needed.
Tokenized stocks and ETFs	The 26 Robinhood-issued tokens the Flap Portal allows as quotes, including TSLA, NVDA, AAPL, SPY, QQQ, HOODon, and BMNRon. The picker is searchable by ticker, name, or address.

Each quote has its own curve profile, which Sumo reads live from the Portal, so the estimates re-read the live terms when you change it. Only these 26 tokens are on the Portal's allowlist; other Robinhood pair tokens Sumo supports elsewhere, and WETH itself, are rejected by the Portal and are not offered.

On an ERC-20 quote, Sumo shows the live ETH-to-quote aggregator rate next to the estimates. If no aggregator can price the quote the ETH column reads as unavailable and the launch cannot be sized until it can.

Token kind

Kind	Description
Standard Token	The default. No tax fields; the tax block is hidden, and trades pay only Flap's 1% protocol fee. The Flap Portal measures every curve buy against one 2%-of-supply quota, shared between the dev buy and each bundle wallet.
Tax Token (Tax V3)	Opt-in. Adds buy and sell tax, tax duration, anti-farmer protection, and dividend distribution on top of the curve. No per-wallet buy cap.

The Standard Token Shares One 2% Quota

On a standard token the Portal checks every curve buy against 2% of supply (20,000,000 tokens) — and it checks it against the quota of the account that SENT the transaction, crediting the tokens to the wallet that bought them. The whole Sumo launch is one transaction signed by the creator, so the dev buy and every bundle wallet draw on the same 2%: each bundle wallet may buy at most 2% − dev buy. Over-quota buys are clipped and the unused input refunded rather than reverted. Sumo enforces this in Buy Setup — it raises the bundle wallet count and lowers the dev buy until every allocation fits, and an even split is used so no wallet drifts over. A Graduation Bundle therefore needs at least 40 bundle wallets to buy out the 80% curve, and the dev buy can only be what those wallets leave under the quota (with exactly 40 wallets at 2% there is none); both graduation budgets (48 on ETH, 44 on an ERC-20 quote) have room for that. The quota is not enforced after migration, so Post-Graduation Wallets and Sell / Buy cleanup are unaffected.

Migration DEX

Option	Description
Uniswap V2	The default. The curve migrates into a Uniswap V2 pair of the quote asset and the token.
PancakeSwap V2	The curve migrates into a PancakeSwap V2 pair instead.

The curve migrates itself once 80% of supply is sold, whether that happens in a Graduation Bundle or later through ordinary trading. Migration seeds the pair with the unsold 20% of supply plus the whole curve reserve. There is no manual migration step.

The launch mode, the quote asset, the token kind, and the migration DEX are fixed once the draft is saved; start a new draft to change them.

Settings

Setting	Description
Supply Control Target	Bundle: total supply bought by dev and bundle wallets, up to 79%. Graduation Bundle: the curve (80%) plus the Post-Graduation Buy, up to 99%.
Estimated ETH Required	Dev buy, bundle buys, post-graduation buys, gas reserves, and funding buffers when enabled. On an ERC-20 quote this is the ETH the funding swap will spend, plus the ETH-denominated gas and buffers.
Estimated `<QUOTE>` Required	On an ERC-20 quote: the quote the ordered buys need on the curve and, in a Graduation Bundle, on the pair.
Estimated Market Cap	Bundle: the curve's marginal price after the planned buys. Graduation Bundle: the migrated pair's spot price after the post-graduation buys. Uses the ETH/USD reference price and, on an ERC-20 quote, the live aggregator rate.
Dev Buy	First buy on the curve. On ETH it rides inside the create call; on an ERC-20 quote it is a separate approve and swap from the dev wallet immediately after the create, still inside the same transaction. In a Graduation Bundle it leaves every bundle wallet at least 0.01% of the curve. On a standard token it shares the Portal's 2% quota with every bundle wallet, so it is capped at `2% − the largest bundle share` and a full 80% curve leaves no room for it at all.
Bundle Buy	Read-only allocation assigned across bundle wallets. In a Graduation Bundle it is the rest of the curve up to 80%.
Post-Graduation Buy	Graduation Bundle only. Read-only: the Supply Control Target above 80%, bought from the migrated pair.
Post-Graduation Wallets	Graduation Bundle only. Wallets buying from the pair after the crossing buy, at least one. They share the transaction's wallet budget with the bundle wallets.
Bundle Wallets	Number of Robinhood Chain wallets used for curve buys. Defaults to 40 in both modes. In a Graduation Bundle the last bundle wallet makes the crossing buy and must hold at least 0.41% of supply.
Holder Wallets	Post-launch token destinations for holder cleanup. Defaults to 100, up to 400.
Funds Per Bundle Wallet	ETH gas reserve per bundle wallet.
Injection Wallets	Optional extra wallets, up to 100, funded with ETH for activity after launch. They do not buy in the launch or take part in cleanup.
Funds Per Injection Wallet	Shown when Injection Wallets is above 0. ETH sent to each injection wallet during funding. Defaults to 0.
Token Cleanup Method	Off, Token Transfer, or Sell / Buy. After the launch lands, moves the launch wallets' token balances into fresh holder wallets. See Token cleanup.
Native Funds Per Holder Wallet	Shown with Sell / Buy. ETH sent to each holder wallet during funding for its cleanup buy.
CEX Funding	Funds the launch wallets with ordinary Robinhood Chain ETH cashouts using the standard CEX funding flow.
CEX Funding Buffer Per Wallet	Extra ETH included in the CEX cashout budget for each launch wallet.
Advanced Controls	Bundle supply jitter, creator gas reserve, funding buffer per wallet, cleanup delay, and holder supply jitter.

Wallet Budgets Come From the Gas Ceiling

Robinhood Chain accepts at most 32,000,000 gas per transaction, and the whole launch is one transaction, so the wallet count is bounded by what fits: Bundle takes 56 wallets on an ETH quote and 52 on an ERC-20 quote; Graduation Bundle takes 48 on an ETH quote and 44 on an ERC-20 quote, shared between bundle and Post-Graduation Wallets because the crossing buy and its migration are the most expensive step in the transaction. This is a protocol and gas limit, not a Sumo batching choice: the launch cannot be widened by splitting it across more transactions without losing atomicity. A plan that would not fit is refused at admission rather than submitted.

Tax Controls

Shown for the Tax Token (Tax V3) kind only. Buy and sell taxes are selected from fixed presets, and either may be 0% as long as the other is positive.

Setting	Description
Buy Tax	Tax applied to Flap bonding-curve buys. Options: Off (0%), 1%, 3%, 5%, 10%.
Sell Tax	Tax applied to Flap bonding-curve sells. Options: Off (0%), 1%, 3%, 5%, 10%.
Burn	Percentage of collected tax allocated to burns.
Dividend	Percentage of collected tax allocated to holder dividends.
Tax Wallet	Percentage of collected tax sent to the configured tax wallet.
Liquidity	Read-only remainder after burn, dividend, and tax wallet rates.
Tax Duration	Duration of the configured taxes, in days. Defaults to and cannot be lower than 365; maximum 36,500.
Anti-Farmer Duration	After migration, taxes apply across every registered pool for this many days. Defaults to and cannot be lower than 1; maximum 365.

The four distribution rates must add up to 100%; liquidity is derived from the other three.

Tax Duration Minimum

The deployed Flap Portal requires at least one year of tax duration, at least one day of anti-farmer protection, and a tax duration that runs at least 24 hours beyond the anti-farmer window. The wizard raises the tax duration minimum as you increase the anti-farmer duration, so set anti-farmer first.

Taxes are charged on top of Flap's protocol buy fee of 1%, so a Tax V3 token with a 3% buy tax costs roughly 4% on the way in. A standard token pays the 1% protocol fee and nothing else.

Dividend Settings

These appear only when the Dividend allocation is above 0%.

Setting	Description
Dividend Token	On an ERC-20 quote, Flap pays dividends only in the quote itself (the default) or in the launched token. On a native ETH quote, dividends are paid in ETH or in the launched token.
Minimum Share Balance	Minimum launched-token balance eligible for dividends, entered in 18-decimal atomic units. Minimum 10,000 tokens.

3. Wallets

Add, import, or generate wallets for each required Robinhood Chain role.

Role	Description
Dev Wallet	The creator. Creates the token through the Flap Portal, performs the dev buy, and pays launch and cleanup gas.
Bundle Wallets	Execute the ordered Flap curve buys inside the launch transaction.
Injection Wallets	Optional wallets funded with ETH for activity after launch. They take no part in the launch or cleanup.
Post-Graduation Wallets	Graduation Bundle only. Buy from the migrated V2 pair in the same transaction, after the crossing buy. Created active, and included in token cleanup as sources.
Tax Wallet	Required only on a Tax V3 token when a buy or sell tax is enabled. Receives the tax wallet share of collected tax.
Holder Wallets	Receive tokens through post-launch cleanup when token cleanup is enabled.

You can use ready wallets, create new wallets, or buy aged wallets at this step. Ready-wallet paths include importing private keys, pulling wallets from Wallet Farm, or reusing wallets from another profile. Additional paths include creating new wallets or buying aged inventory from Wallet Marketplace.

Freeze and sniper wallets are not used by Robinhood Flap launches.

4. Funding

Save the draft before funding. Every wallet is funded in ETH, whatever the quote asset. The funding table tracks the ETH each wallet needs for its buy, its gas reserve, and the configured buffers, and supports address copying, allocation randomization, per-wallet allocation edits, and balance checks.

If CEX funding is enabled, deposit the estimated Robinhood Chain ETH into the funding wallet, check the balance, then use Fund to distribute ETH. If CEX funding is disabled, fund the dev, tax, and bundle wallets directly and use Check Balances.

On an ERC-20 quote the funding table adds a quote column and, once every wallet holds at least the swap's own ETH sizing, Swap ETH to <QUOTE> opens a preview of the swap: the live rate and provider, each wallet's quote shortfall, the ETH it will spend and keep, and an adjustable slippage. This is the same funding swap the Pons V2 and lunch.fun flows use. Confirming asks Sumo to swap, per wallet, the ETH its remaining quote shortfall needs into the quote token; wallets that already hold their quote are skipped, and a draft whose wallets are all covered reports that nothing is left to swap. Every wallet keeps a gas allowance after its swap, and the dev wallet keeps its gas reserve. The swaps land wallet by wallet, so a wallet whose swap fails on-chain keeps its ETH: Check Balances shows the shortfall and the swap can simply be run again for what is missing. Small leftover quote balances after launch are expected.

On a native ETH quote there is no swap and no quote column: the wallets buy the curve with the ETH they already hold.

5. Strategies

Optionally add starter strategies to the profile before launch. You can configure Counter Trade, DCA, and Limit Order strategies by hand, or apply a strategy preset: Sumo ships built-in Hyped, Standard, and Staircase presets, and your org can save its own presets for reuse across launches and imports. Strategies are saved with the draft and can be reviewed after the token is live.

6. Launch Preview

The preview shows:

Quote asset, token kind, and migration DEX
Supply control, dev buy, and bundle buy split, plus the post-graduation buy in a Graduation Bundle
Estimated ETH required, the quote total on an ERC-20 quote, and estimated market cap
On a Tax V3 token: buy / sell tax, tax duration, anti-farmer duration, the burn, dividend, tax wallet, and liquidity distribution rates, and the dividend token and minimum share balance when the dividend allocation is above 0%

Two actions are available:

Simulate Launch - Plans the ordered curve buys against the live Portal and reports any blockers before funds move.
Launch Bundle - Hands the launch to the durable runner, which submits the transaction, reads the launch receipt, runs token cleanup when enabled, and activates the profile.

While the runner owns the workflow the action card reports its state: Launch admitted, Submitting atomic bundle, Bundle included, Reading launch receipt, Activating project, and finally Launch complete. Once reconciled, the card also shows the token address and, for a Graduation Bundle, the migrated pair.

A Graduation Bundle Migrates or Reverts

In a Graduation Bundle the post-graduation buys are only valid on a migrated market, so if the crossing buy does not take the curve over the threshold the whole transaction reverts. Nothing lands, nothing is spent beyond gas, and the launch can be re-planned and submitted again. There is no partial "landed but unmigrated" outcome to clean up after.

Token cleanup

Method	Availability
Off	Both modes. Launch wallets keep their tokens.
Token Transfer	Both modes. Transfers the launch wallets' token balances directly to fresh holder wallets.
Sell / Buy	Graduation Bundle only. Sells from the launch wallets and buys for the holder wallets on the migrated V2 pair through the shared cleanup contract.

Sell / Buy needs a pair to trade on, which only a Graduation Bundle has at launch time, so it is not offered in Bundle mode. Sources are the bundle wallets plus the Post-Graduation Wallets; the destinations are the holder wallets. Each holder wallet needs ETH for its cleanup buy, and the launch is refused until every holder wallet holds it. On a standard token the Portal's 2% curve quota does not apply to cleanup, because it stops being enforced once the market has migrated.

After Launch

When the transaction lands and reconciliation completes, the profile becomes active and opens in Live Trading. Flap profiles use the Flap connector for quotes, trades, graduation progress, and post-launch spot-price data.

A Bundle launch leaves the token on the curve, and the workflow card tracks its progress toward the 80% threshold. Migration happens by itself when the curve is bought out, whether by your own trading or by the market, and moves the token to the pair on the migration DEX chosen in the draft.

A Graduation Bundle launch lands already migrated: the profile activates directly on the V2 pair, the workflow card shows the pair instead of curve progress, and no migration step remains.

Launch Logs

Robinhood Flap profiles add a Launch Logs tab for metadata preparation, create transaction building, launch simulation, submission, confirmation, and holder cleanup.