Functions and events

This developer reference summarizes the public contract surface. Use the verified explorer ABI for exact transaction encoding.

Launch factories

Base crypto launches use B20LaunchpadFactory, while Base stock launches use RWAB20LaunchpadFactory. Robinhood crypto launches use ERC20LaunchpadFactory, while Robinhood stock launches use RWAERC20LaunchpadFactory. These factory types share the same core launch flow.

Surface	Important members
Create	`createLaunch(LaunchParams)` creates the token, opens the pool, and seeds the complete fixed supply as permanent liquidity for current launches
Configuration reads	`quotes`, `feeDefaults`, `launchSupply`, `tickSpacing`, `bands`, and `announcementRegistry`
Transaction-safety reads	`configVersion` and `usedLaunchSalts`
Contract limits	`MIN_SUPPLY`, `MAX_SUPPLY`, fee limits, range limits, and route-specific quote limits
Future-launch governance	Quote, opening setting, creation fee, supply, liquidity, fee, treasury, announcement, and ownership updates

Stock factory extensions

Surface	Important members
Route state	`launchCreationEnabled`, `nativeLaunchFee`, and `priceUpdater`
Quote state	`quoteRevision(quote)` plus the common `quotes(quote)` record
Quote batches	`batchRegisterQuotes`, `batchSetQuoteStartTicks`, and `batchUnregisterQuotes`, with at most 64 entries
Token address	`TOKEN_ADDRESS_SUFFIX()` returns `1`; the factory rejects any stock-paired launch token that does not end in `01`
Robinhood prediction	`launchTokenBytecodeHash(LaunchParams, creator)` exposes the final bytecode hash used to prepare the deterministic ERC-20 address

The available Base and Robinhood stock routes currently report a zero nativeLaunchFee. Standard crypto quotes also currently report a zero creation fee. A deployed factory or zero fee does not by itself make a route available; catalog, quote registration, and launch-enabled state must also agree.

Launch events

Event	Meaning
`Launched`	Token, pool ID, creator, quote, supply, and liquidity spacing
`LaunchFeePaid`	Creation-fee payer, currency, fee receiver, and amount; it is emitted only when the configured fee is non-zero
`QuoteRegistered` / `QuoteUnregistered`	Supported quote changes
`QuoteCreationFeeUpdated`	Creation-fee change for a quote
`BandTemplateUpdated`	Future liquidity-range change
`FeeDefaultsUpdated`	Future fee split, anti-snipe, or treasury change
`LaunchSupplyUpdated` / `TickSpacingUpdated`	Future supply or range-alignment change
`OwnershipTransferStarted` / `OwnershipTransferred`	Governance ownership change

The stock factories additionally emit QuoteRevisionUpdated, PriceUpdaterUpdated, NativeLaunchFeeUpdated, and LaunchCreationEnabledUpdated.

LaunchHook

The hook exposes poolConfig for each launch pool. The factory registers and seeds a pool; ordinary trading then occurs through Uniswap v4.

Event	Meaning
`PoolRegistered`	The pool’s frozen creator, platform fee receiver, and fee settings
`Seeded`	Token amount placed into the permanent position
`Trade`	Executor, referrer, fee currency, fee amount, and optional comment; swap direction comes from the matching Uniswap event

Trade.executor is the router or callback sender and is not guaranteed to be the trader’s wallet. Indexers should derive direction and trader attribution from the complete transaction receipt, including the matching Uniswap swap and router execution context.

FeeEscrow

Function	Who can call	Result
`owed(recipient, currency)`	Anyone	Returns the raw claimable fee balance
`claim(recipient, currency)`	Anyone	Pays the full balance to the recorded recipient
`claimTo(currency, to)`	Balance owner	Pays the caller’s balance to a chosen address

Events: Credited and Claimed.

AnnouncementRegistry

Function	Who can call	Result
`creatorOf(token)`	Anyone	Returns the creator allowed to announce for the token
`usedId(token, id)`	Anyone	Checks whether an announcement ID was used
`post(token, id, description, uri)`	Recorded creator	Publishes a unique announcement

Events: CreatorRegistered and Announcement.

Robinhood launch tokens

Robinhood tokens expose standard ERC-20 reads and transfers. When profile editing was enabled at launch, the metadata authority can call updateName, updateSymbol, updateContractURI, and updateExtraMetadata. No mint, burn, pause, owner, upgrade, or recovery function exists. Robinhood stock-paired tokens use the same LaunchToken implementation but are created through the separate stock factory and must end in 01.

Staking contract

One staking contract serves every vault on its chain. The vault creator and complete immutable configuration determine the vaultId.

Function	Who can call	Result
`createVault(params, expectedFeeConfigVersion)`	Anyone	Creates and completely funds an immutable vault plus its one-time protocol fee
`deposit(vaultId, amount)`	Token holder	Transfers staking tokens into a new deposit lot
`withdraw(vaultId, lotId, amount, to)`	Lot owner	Withdraws one lot amount under the vault’s early-exit and forfeiture rules
`withdrawLots(vaultId, lotIds, amounts, to)`	Lot owner	Atomically withdraws ordered amounts from several lots
`claim(vaultId, epochs, to)`	Participant	Claims the caller’s rewards from ordered completed epochs
`previewWithdraw` / `previewClaim`	Anyone	Previews one withdrawal or an ordered claim batch
`deriveVaultId`	Anyone	Derives the vault ID from its creator and complete configuration
`getVault`	Anyone	Returns immutable configuration, creator, end time, total staked, reward remaining, and deposit-opening time
`getUserState` / `getLot` / `getUserLots`	Anyone	Returns aggregate principal and paginated deposit-lot state
`isClaimed` / `epochBounds`	Anyone	Returns claim status and epoch timing
`feeConfig`	Anyone	Returns the current creation-fee rate, recipient, and change counter
`setFeeConfig`	Contract owner	Updates only the fee used by future vault creation

Event	Meaning
`VaultCreated`	Vault ID, creator, assets, schedule, reward budget, exit policy, and fee snapshot
`Deposited`	Participant, deposit lot, amount, deposit time, and unlock time
`Withdrawn`	Lot amount, recipient, remaining principal, penalty result, and current-epoch forfeited weight
`EpochRewardClaimed`	Participant reward paid for one completed epoch
`FeeConfigUpdated`	New fee rate, recipient, and change counter for later vault creation

Use the verified explorer ABI for exact types and encoding. See the staking guide for the reward, withdrawal, and claim rules.

Common launch errors

Error	Meaning
`StaleConfig`	Refresh the current factory settings and rebuild the transaction
`LaunchExpired`	Use a fresh deadline
`QuoteNotRegistered`	The selected quote is unavailable
`LaunchCreationDisabled`	New stock-paired launches are currently switched off
`StaleQuoteRevision`	A stock opening-price update used an outdated quote revision
`InvalidTokenAddressSuffix`	The prepared stock-paired token address does not end in `01`
`LaunchSaltUsed`	Use a new launch identifier
`InvalidLaunchFeePayment`	The creation-fee payment was not exact
`OutOfBounds` / `InvalidConfig`	A hard limit or related-field rule failed
`NotImmutable`	The created token failed its fixed-authority checks
`NotSingleSided`	Opening liquidity would require the paired asset
`LiquidityLocked`	The requested liquidity change is not allowed
`ExactOutputDisabledDuringAntiSnipe`	Use an input-amount trade or wait until the normal fee begins
`PartialFillUnsupported`	The requested quote-specified amount could not be filled completely

Overview

Create a token

Staking

Liquidity and fees

How the platform works

API

Developers

Reference

Launch factories

Stock factory extensions

Launch events

LaunchHook

FeeEscrow

AnnouncementRegistry

Robinhood launch tokens

Staking contract

Common launch errors

​Launch factories

​Stock factory extensions

​Launch events

​LaunchHook

​FeeEscrow

​AnnouncementRegistry

​Robinhood launch tokens

​Staking contract

​Common launch errors

Launch factories

Stock factory extensions

Launch events

LaunchHook

FeeEscrow

AnnouncementRegistry

Robinhood launch tokens

Staking contract

Common launch errors