Contracts

Deployed contract addresses and verification status.

Contracts

Deployed contracts (Sepolia testnet)

Contract	Address	Purpose
BlankFXAccess	0xc3e9A233861a5f5E606aF61fEa5907a0776aA411	Access control and user permissions
BlankFXUSDHub	0xC081279f1B241f2530bde7bF46430A4e108C4FfF	USD liquidity pool (USDC, USDT, RLUSD)
BlankFXFXPool (EUR)	0xd73C964F0cEb9eA46973292383306c21bd53B23C	EUR liquidity pool (EURC)
BlankFXRouterV3	0x171bB65D294ae2F9fC10e77A6AC35141baDd4bD9	Swap router — routes trades through hub and pools
BlankFXRelayRouter (Gasless)	0x0C092B9D0D4E34FCd64e518AE8F58ccfC9fD4Ed4	Gasless relay router via Permit2
Permit2	0x000000000022D473030F116dDEE9F6B43aC78BA3	Uniswap Permit2 — used for gasless approvals

All contracts are deployed on Sepolia testnet. Mainnet deployment is pending audit completion.

Architecture

User Wallet
    │
    ▼
BlankFXRouterV3 (swap entry point)
    │           BlankFXRelayRouter (gasless path via Permit2)
    │
    ├── BlankFXUSDHub (USD stablecoin pool)
    │
    └── BlankFXFXPool (foreign currency pools, e.g. EUR)
    
BlankFXAccess (permission checks on every trade)

All swaps go through the Router. The Router checks access permissions, then routes the trade to the appropriate pool(s) based on the token pair.

For gasless swaps, users sign an off-chain Permit2 message and the BlankFXRelayRouter submits the transaction on their behalf.

Access control

BlankFX uses a tiered access system. Users must be registered to trade. Access tiers determine maximum trade sizes and available features.

Audit status

Contracts have not yet been formally audited. A third-party audit is planned before mainnet deployment.

BlankFX is currently deployed on Sepolia testnet only. Do not send real funds to these addresses.