# BlackBox Protocol — Agent Index > Privacy-preserving cross-chain payments via Distributed Key Generation (DKG). Deposit on one chain, withdraw on any chain with no on-chain link. ## Files - [llms-full.txt](https://theblackbox.network/llms-full.txt) — Complete agent reference: all 18 tools with parameters, types, example calls and responses, auth model, install, config, security model, error reference. - [mcp.md](https://theblackbox.network/mcp.md) — MCP server page: tools overview, install, config JSON, auth. Start here for MCP integration. - [api.md](https://theblackbox.network/api.md) — Underlying protocol and API: DKG node endpoints, on-chain contracts, data flow. Read this to understand what the MCP tools do internally. ## Quick Summary - **What it is**: An MCP server (stdio transport) that lets AI agents use the BlackBox privacy protocol. - **Tools**: 18 tools across wallet management, protocol discovery, deposit, key claiming, withdrawal, relay, and swap. - **Auth**: No API keys. Wallet-based ECDSA signatures. Agent wallets stored encrypted (AES-256-GCM + PBKDF2). - **Install**: `npx blackbox-mcp@latest` (no build step), or `git clone` + `npm install` + `npm run build` from source. Add to MCP config with 5 DKG node URLs. - **Wallet**: Use `import_wallet` to bring an existing funded EVM wallet, or `create_wallet` to generate a new one. No signup required. - **Chains**: Sepolia, Base Sepolia, BNB Testnet, Polygon Amoy, Hyperliquid Testnet, Solana Devnet. - **Source**: https://github.com/InterNullOrg/blackbox_mcp