Mcp Hd Wallet

Connects Claude to Crypto APIs' HD wallet infrastructure for tracking multi-chain wallets using only extended public keys (xPub/yPub/zPub). You sync an xPub, derive addresses, and query aggregated balances and transactions across Bitcoin, Ethereum, Polygon, XRP, and a dozen other chains without exposing private keys. Supports both UTXO and EVM operations like listing UTXOs, preparing unsigned transactions, and tracking token balances. Pair it with their signer server to build complete wallet workflows where Claude handles address derivation and balance queries while you keep signing air-gapped. Works in stdio or HTTP mode with per-request API key support for multi-tenant setups.