Contracts & Integration

note

This page is for developers. If you just want to launch or trade tokens, everything you need is at frontier.fun - you never need to touch a contract directly. Start at Getting Started instead.

Robinhood Chain (4663)

Chain id	4663
Gas token	ETH
RPC	https://rpc.mainnet.chain.robinhood.com
Explorer	robinhoodchain.blockscout.com

Protocol

Contract	Address
BCTokenFactory	0x3cbC9395046607C083B383DC3588A3e8308dFf54
BondingCurve	0xCCa442899dFD80bf04340fa8C245C7EB02F71DD4
CurveMath	0xe70c33D0486A53FAAE7D46db1Beb14BB73f45E5e
FactoryHook	0xac8A969865c553BA47BC523F7F65AF1abC3470cC
LiquidityManager	0x97f3578083396D4ef2042868c6aE9d4eC91007A6
Harvester	0x45664A758a782006991de87d1d1F522B2c32FcBE
StakingVaultFactory	0x52510d2F1E9618bea75F0b8b500d71E3a187654C
ReferralManager	0x6Fb1160A663834e8E53E411CC7202A01F1b144DD
HighlightsManager	0xDb081Afb7162059413FE30592217e8348973f7C5
TokenVesting	0x9241A07dB6a55CAD73859B05044230f7f180A89b

Uniswap V4 infrastructure

Contract	Address
PoolManager	0x8366a39CC670B4001A1121B8F6A443A643e40951
PositionManager	0x58daec3116aae6D93017bAAea7749052E8a04fA7
Universal Router	0x8876789976dEcBfCbBbe364623C63652db8C0904
V4Quoter	0x8Dc178eFB8111BB0973Dd9d722ebeFF267c98F94
StateView	0xF3334192D15450CdD385c8B70e03f9A6bD9E673b
Permit2	0x000000000022D473030F116dDEE9F6B43aC78BA3
Multicall3	0xcA11bde05977b3631167028862bE2a173976CA11
WETH	0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73

Always re-verify addresses on the explorer before integrating.

Integrating with Frontier tokens

Pre-graduation: quote and trade the curve

While BCToken.isLPd() is false, the only market is the bonding curve:

• Quotes: BondingCurve.getAmountOutBuy / getAmountOutSell are fee-inclusive; getAmountOutBuySupplyCapped caps the quote to the remaining curve supply near graduation. The standalone CurveMath contract exposes the raw x · y = k formulas (purchaseCost, purchaseTargetAmount, saleTargetAmount) for offchain calculators via eth_call.
• Trades: BondingCurve.buy(token, affiliate, minOut) and sell(token, affiliate, amount, minOut). Pass address(0) as the affiliate if there's no referral.

Post-graduation: find the pool

Uniswap V4 pools are records inside the singleton PoolManager, not deployed contracts - so there is no pool address to look up. Instead:

// The pool key (currencies, dynamic-fee flag, tick spacing, hook):
PoolKey memory key = LiquidityManager(liquidityManager).getPoolKey(token);

// Or just the pool id:
PoolId id = LiquidityManager(liquidityManager).getPoolId(token);

Every Frontier pool has the same shape: currency0 is native ETH (address(0)), currency1 is the coin, fee is the dynamic-fee flag (0x800000), tick spacing is 60, and the hook is the FactoryHook.

BCToken.lp returns the hook

For interface compatibility, BCToken.lp returns the FactoryHook address, not a pool contract - V4 pools aren't contracts. Use getPoolKey / getPoolId for pool discovery.

Swapping

There is no first-party swap router - swaps go through the canonical Universal Router with the @uniswap/v4-sdk, or any V4-compatible router. Quote with the V4Quoter, and remember the pool's fee is dynamic: the effective rate on any swap is the hook's current 3-step volatility fee.

Price feeds

For a manipulation-resistant price, read the hook's truncated TWAP oracle via FactoryHook.observe(poolId) instead of the pool's spot tick. Per-observation tick movement is capped, so single-block spikes barely move the TWAP.

Curve parameters

The curve's three shape parameters are factory-wide and readable at any time from BCTokenFactory.initialParams() - virtualReserves, initialSupply (the reserve held back for LP seeding) and maxSupply. A token's own graduation target is BCToken.TARGET_ETH. Read them rather than hardcoding the figures quoted elsewhere in these docs.

Security

• The v1.1 contracts have completed an external security review; the report is being finalised and will be published here.
• Ownership of every contract sits with a multisig.
• Security contact: frontierfun@proton.me.