BNB Chain Mainnet (Chain ID: 56)
Core Contracts
| Contract | Address | Purpose |
|---|---|---|
| B402 RelayerV3 | 0xE91b564EB8DFF305Ff8efA332f84c487b9da5171 | EIP-712 payment settlement |
Smart Wallet Infrastructure
| Contract | Address | Purpose |
|---|---|---|
| Nexus Account Factory | 0x0000006648ED9B2B842552BE63Af870bC74af837 | Deterministic smart wallet deployment |
| Nexus Bootstrap | 0x0000003eDf18913c01cBc482C978bBD3D6E8ffA3 | Smart wallet initialization |
| EntryPoint (v0.7) | 0x0000000071727De22E5E9d8BAf0edAc6f37da032 | ERC-4337 UserOp execution |
Supported Tokens
| Token | Symbol | Address | Decimals |
|---|---|---|---|
| Tether USD | USDT | 0x55d398326f99059fF775485246999027B3197955 | 18 |
| USD Coin | USDC | 0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d | 18 |
| WLFI USD | USD1 | 0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d | 18 |
Base Mainnet (Chain ID: 8453)
Core Contracts
| Contract | Address | Purpose |
|---|---|---|
| B402 RelayerV3 | 0xE91b564EB8DFF305Ff8efA332f84c487b9da5171 | EIP-712 payment settlement |
Privacy Pool Contracts
| Contract | Address | Verified |
|---|---|---|
| Privacy Proxy | 0x26111e2379E5fC0A7Cd8728fe52c7b84CA4fbE85 | Yes |
| Privacy Pool Wallet Impl | 0x92Ab00D5DCBcf3bC2af010c6eA94fe57a9A3331D | Yes |
| PoseidonT3 | 0xB407837aD487EF6DD1044CcEEF13f111A334503A | No (circomlib bytecode) |
| PoseidonT4 | 0x9dB0eDC77C9047a06Fd6dE82c892630DAa5eF601 | No (circomlib bytecode) |
| Delegator | 0xa5F50a2670dfc3b41616DEC18Db7335B8235404D | Yes |
| ProxyAdmin | 0x3BD317f5032a2Ae809a4640F3CEC7868b04d759A | Yes |
| Treasury Impl | 0x22eb6c6f31fCaDD62eF4C6E64fCC6Fe39F699F51 | Yes |
| Treasury Proxy | 0x56F75ed712d7e26602Db9cD3664Da3CA75d4Ad26 | Yes |
| RelayAdapt | 0xB0BC6d50098519c2a030661338F82a8792b85404 | Yes |
Supported Tokens
| Token | Symbol | Address | Decimals |
|---|---|---|---|
| USD Coin | USDC | 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 6 |
Service Endpoints
| Service | URL | Description |
|---|---|---|
| Facilitator API | https://facilitatorv3.b402.ai | Payment verification and settlement |
| b402scan | https://b402scan.ai | Ecosystem explorer (coming soon) |
Block Explorers
| Network | Explorer | URL |
|---|---|---|
| BNB Chain Mainnet | BscScan | https://bscscan.com |
| Base Mainnet | BaseScan | https://basescan.org |
Notes
- Token decimals vary by chain. BNB Chain tokens use 18 decimals. Base tokens (USDC, USDT) use 6 decimals. Always check decimals for the target chain.
- Token whitelisting — Only tokens whitelisted on the Relayer contract can be used for payments.
- See Network & Token Support for detailed token and chain information.