Skill: mmchougule/b402-private-defi (version 0.4.2)

--- name: b402-private-defi version: 0.4.2 description: > Private DeFi for AI agents. Shield tokens into a Railgun ZK privacy pool, swap privately, lend into Morpho vaults for yield, and bridge cross-chain via LI.FI — all gasless and untraceable. Supports Base, Arbitrum, BSC. author: b402ai homepage: https://github.com/b402-ai/b402-sdk metadata: openclaw: requires: env: [WORKER_PRIVATE_KEY] bins: [node, npx] primaryEnv: WORKER_PRIVATE_KEY install: - kind: node package: b402-mcp bins: [b402-mcp] emoji: "\U0001F510" homepage: https://github.com/b402-ai/b402-sdk --- # b402 — Private DeFi for AI Agents **Shield. Swap. Lend. Bridge. All private. All gasless.** b402 wraps Railgun's ZK privacy pool with an agent-friendly SDK and MCP server. On-chain observers see "RelayAdapt called a DEX" — not your wallet, not your strategy. ## Install ```bash npx b402-mcp@latest --claude ``` This generates a wallet at `~/.b402/wallet.json`, patches your Claude Desktop config, and registers the MCP server. Fund the wallet with USDC on Base to start. ## Tools | Tool | What it does | |---|---| | `check_pool_balance` | Show shielded balances, wallet state, vault positions | | `shield_usdc` | Move USDC into the Railgun privacy pool (gasless) | | `private_swap` | Swap tokens inside the pool via ZK proof (USDC↔WETH, etc.) | | `lend_privately` | Deposit into Morpho vault from pool (~4-8% APY) | | `redeem_privately` | Withdraw from Morpho vault back to pool | | `cross_chain_privately` | Private cross-chain transfer or swap via LI.FI (Base→Arb, etc.) | | `get_swap_quote` | Preview swap rates without executing | | `run_strategy` | Multi-step: swap + lend + reserve in one call | ## Example prompts - "Check my privacy pool balance" - "Shield 5 USDC into the pool" - "Swap 2 USDC to WETH privately" - "Privately send 1 USDC to 0xABC... on Arbitrum" - "Private cross-chain swap: 1 USDC from pool to ARB on Arbitrum, to 0xABC..." - "Lend 10 USDC in the steakhouse vault" - "Run a yield strategy: 30% WETH, 50% lend, 20% reserve" ## How it works ``` Agent prompt → MCP tool call → b402-sdk → Railgun ZK proof (client-side, 10-30s) → RelayAdapt atomic tx (unshield → DeFi op → reshield) → On-chain: only RelayAdapt visible. No wallet linked. ``` Cross-chain: LI.FI routes through ~30 bridges + ~20 DEXes. Source and destination are unlinkable. ## Supported chains | Chain | ID | Privacy pool | Cross-chain | |---|---|---|---| | Base | 8453 | Yes (0% fee) | Source + dest | | Arbitrum | 42161 | Yes (0% fee) | Dest only (v1) | | BSC | 56 | Yes (0% fee) | Dest only (v1) | ## SDK usage (for builders) ```typescript import { B402 } from '@b402ai/sdk' const b402 = new B402({ privateKey: process.env.WORKER_PRIVATE_KEY! }) // Shield into privacy pool (gasless) await b402.shieldFromEOA({ token: 'USDC', amount: '10' }) // Private swap inside pool await b402.privateSwap({ from: 'USDC', to: 'WETH', amount: '5' }) // Private cross-chain (LI.FI routing) await b402.privateCrossChain({ toChain: 'arbitrum', fromToken: 'USDC', toToken: 'ARB', amount: '1', destinationAddress: '0x...', }) // Private lend (Morpho vaults, 4-8% APY) await b402.privateLend({ amount: '10', vault: 'steakhouse' }) ``` ## Links - SDK: [npmjs.com/package/@b402ai/sdk](https://npmjs.com/package/@b402ai/sdk) - MCP: [npmjs.com/package/b402-mcp](https://npmjs.com/package/b402-mcp) - Starter: [github.com/b402-ai/b402-starter](https://github.com/b402-ai/b402-starter) - Agent template: [github.com/b402-ai/b402-agent-starter](https://github.com/b402-ai/b402-agent-starter)


Security scan verdicts — ClawScan: suspicious | static analysis: clean | VirusTotal: clean | SkillSpector: clean (LOW)