Slingshot Integration
Scope
This guide consolidates integration-critical details for Slingshot modules:
Swap
Bridge
Migrate
Yield
Related product docs:
Network Context
Goliath Testnet
8901
https://rpc.testnet.goliath.net
Ethereum Sepolia
11155111
https://ethereum-sepolia-rpc.publicnode.com
XCN decimal behavior differs by context. Re-check XCN Decimal Handling before integrating value math across RPC/UI/contracts.
Contract Registry
Yield
stXCN Proxy (UI/testing)
Goliath
0x18da8D438a030B530Aba59Ae0aD1942bEB14a9cE
Live
Yield
stXCN Implementation
Goliath
0xb351e224466F45fe652F7Dfd577dAB7A6717aBfC
Live
Yield/Migrate
BridgeStakingAdapter
Goliath
0x899fd7C568e9040F4320e3f23B05DC340ec2aA78
Live
Migrate
Sepolia Staking
Sepolia
0xc50B664BA11F5558b8FF7358bb7C576542655D54
Live
Migrate/Bridge
Sepolia XCN (ERC20)
Sepolia
0x7a8adc542A35c93da263A188367F4bF4c445B8E9
Live
Migrate
Sepolia Staked XCN
Sepolia
0xc50B664BA11F5558b8FF7358bb7C576542655D54
Staked position contract in this codebase (no separate ERC20 staked token address)
Bridge
Bridge Contract
Sepolia
0xA9FD64B5095d626F5A3A67e6DB7FB766345F8092
Live
Bridge
Bridge Contract
Goliath
0x2c1d218B5a97a26D144ffd12d5C813590f93FFEB
Live
Bridge
Bridged ETH Token
Goliath
0xEd02AA7dd3f105EDab8702D859781CAfF111324b
Live
Swap
UniswapV2Factory
Goliath
0x561B0342878bcdeF1a7E7D9BA7654B3C84A81819
Live
Swap
UniswapV2Router02
Goliath
0x1D6B8ad12C72893f89844418DC03999298D9ABF4
Live
Swap
WXCN
Goliath
0x88A07F7BBb61A2945D8Ac541461fc62efb1F4066
Live
Swap
Multicall3
Goliath
0xF912C1ad454aaaE03A1d72C53702F3dc0B4fcb69
Live
Integration Notes by Module
Swap
Use router quotes (
getAmountsOut) before submitting swaps.Normalize decimal handling per-token (USDC 6, WXCN 8, ETH 18).
Bridge
Typical write methods:
depositNative,deposit,burn.Monitor progress with bridge API + chain events.
Migrate
Migrate flows span Sepolia and Goliath transactions.
Build reconciliation around source tx hash, bridge status, and destination settlement.
Yield
Rewards accrue by cumulative index; no explicit claim tx loop.
Use
unstake()path for exit to XCN.
Test Setup (Faucet)
Use the Telegram Faucet Bot:
/request <ADDRESS> now returns XCN on Goliath, XCN on Sepolia, and ETH/BTC on Goliath.
Recommended Validation Checklist
Verify contract addresses against explorer before deployment.
Confirm chain ID before every write transaction.
Add monitoring for both Sepolia and Goliath in cross-chain flows.
Keep contract addresses externalized in config so upgrades can be rolled out without app redeploys.
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