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Everything on hoodstar.fun is on-chain and permissionlessly integrable. You can build trading bots, indexers, dashboards, or entire alternative frontends — no API key required.

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Two ways to integrate

TypeScript SDK

@hoodstar/sdk — typed reads, writes, exact client-side quote math, and event streaming on top of viem. The fastest way to build.

Raw contracts

Call the launchpad directly from Solidity, Foundry scripts, or any web3 library. Full function and error reference.

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Robinhood Chain

MainnetTestnet
Chain ID466346630
RPChttps://rpc.mainnet.chain.robinhood.comhttps://rpc.testnet.chain.robinhood.com
Explorerrobinhoodchain.blockscout.comrobinhoodchain-testnet.blockscout.com
Gas tokenETH (18 decimals)Testnet ETH (faucet)
Robinhood Chain is an Arbitrum Orbit L2. Two practical consequences:
  • Blocks are fast and reorgs are effectively nonexistent — confirmation counts of 0–1 are fine.
  • The public RPC is HTTP only (no eth_subscribe websocket). The SDK’s event layer is built around chunked eth_getLogs polling for exactly this reason; for websockets you need a paid RPC provider.

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Architecture

Three contracts run the whole protocol:
ContractRole
HoodLaunchpadSingleton: token factory, all bonding curves, fee ledger, and Uniswap migrator in one contract.
HoodTokenPer-launch ERC-20 (+ EIP-2612). Fixed 1B supply, no admin functions, immutable metadataURI.
FeeLockerImmutable, ownerless vault holding every graduated LP position forever; splits collected swap fees 50/50 creator/treasury.
Only the launchpad address is needed to integrate — the FeeLocker, treasury, WETH, and Uniswap position manager are all discoverable from it on-chain.

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Contract addresses

The hoodstar.fun contracts are not yet deployed — launchpad addresses will be published here at launch. Until then, develop against a local fork or the testnet once live, or run the contracts yourself with the deploy scripts.
ContractMainnet (4663)
HoodLaunchpadTo be announced
FeeLockerTo be announced
Canonical Robinhood Chain infrastructure the protocol builds on:
ContractAddress
Uniswap v3 Factory0x1f7d7550B1b028f7571E69A784071F0205FD2EfA
Uniswap v3 NonfungiblePositionManager0x73991a25C818Bf1f1128dEAaB1492D45638DE0D3
Uniswap SwapRouter020xCaf681a66D020601342297493863E78C959E5cb2
WETH0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73

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Key protocol constants

TOTAL_SUPPLY     = 1_000_000_000 × 1e18   // per token
SALE_SUPPLY      =   793_100_000 × 1e18   // sold on the curve
POOL_SUPPLY      =   206_900_000 × 1e18   // reserved for Uniswap LP
VIRTUAL_TOKEN_0  = 1_073_000_000 × 1e18   // initial virtual token reserve
virtualEth0      = 1.6 ETH                // initial virtual ETH reserve (deploy parameter)
Trade fee        = 100 bps (70 protocol / 30 creator), hard cap 500 bps
Uniswap pool     = 1% fee tier (10000), full-range position