Developers

Contracts

Seven contracts, and what each one is responsible for.

Contract	Responsibility	Owner
TapeFactory	validates and launches markets	protocol owner
TapeToken	fixed-supply ERC-20, deployed per launch	none
TapeHook	market rules, enforced in the swap	none
TapeQuoteRegistry	quote assets permitted for new markets	protocol owner
TapeLiquidityLocker	holds every launch position, permanently	none
TapeFeeVault	fee accounting and claims	protocol owner
TapePreviewer	read-only simulation	none
TapeFeeRight	transferable creator-fee entitlement	factory (disabled in V1)

TapeFactory

Purpose: the only way a TAPEZERO market comes into existence
Key entry point: launch(params)
State: protocol fee bps, module flags, locker and fee-right addresses
Events: MarketLaunched, DustBurned, ProtocolFeeSet, LaunchesEnabledSet, ModuleFlagSet, FeeRightIssued
Permissions: owner may set the default fee, module flags, and the one-shot wiring
Security note: cannot modify a launched market; its constructor rejects a hook whose address does not encode the required permission bits

TapeToken

Purpose: the launch token
State: standard ERC-20 plus a metadata URI
External methods: ERC-20, plus burn callable by the hook
Permissions: no owner, no mint after construction
Security note: burn reduces totalSupply; there is no dead-address convention

TapeHook

Purpose: enforces one market's frozen rules on every swap
Callbacks: beforeInitialize, beforeSwap, afterSwap
State: poolId => Market, per-block anti-snipe state, pot counters
External methods: registerMarket (factory, once), market(poolId) (view)
Events: MarketConfigured, QuoteFeeTaken, TokensBurned, PotAdvanced, PotAwarded
Permissions: no owner; setFactory is callable once, before a factory exists
Security note: no setter exists for a registered market

TapeQuoteRegistry

Purpose: the set of quote assets new markets may use
State: quote => QuoteConfig
External methods: config, checkQuote (non-reverting), requireLaunchable (reverting), setQuote, disableQuote
Events: QuoteAdded, QuoteUpdated, QuoteDisabled
Permissions: owner may add, update and disable
Security note: never consulted on a swap, so disabling a quote cannot affect a live market

TapeLiquidityLocker

Purpose: owns every market's initial position, forever
State: poolId => Position
External methods: lockLaunchLiquidity (factory only), collectLpFees (anyone), unlockCallback
Events: LiquidityLocked, LpFeesCollected
Permissions: none — the contract has no owner
Security note: modifyLiquidity is called twice: once with a positive delta at launch, once with the literal constant 0

TapeFeeVault

Purpose: accounts every fee, per market and per token
State: accruals, splits, pot balances, claimable balances
External methods: accrue, accrueLp, awardPot, claimCreator, claim, sweepProtocol
Events: see Events
Permissions: owner sets the treasury and the one-shot wiring; claims are permissionless
Security note: reentrancy-guarded on every claim path; holds Uniswap ERC-6909 claims it redeems on demand

TapePreviewer

Purpose: read-only preview of a launch and of sample trades
External methods: previewLaunch, checkRules, quote and price views
Permissions: none; it is entirely view
Security note: shares the production libraries, and reports status codes alongside the arithmetic instead of refusing to compute

TAPEZERO is an independent protocol and is not affiliated with Robinhood, Uniswap or Chainlink. The contracts are unaudited. Nothing here is investment advice.