bnbchain-mcp

SKILL.md

BNB Chain MCP Skill

How to connect to the BNB Chain MCP server and use its tools: blocks, transactions, contracts, tokens, NFTs, wallet, ERC-8004 agents, and Greenfield. Use this skill when working with BNB Chain / opBNB / EVM or Greenfield via MCP.

Connection and credentials

Run the server: npx @bnb-chain/mcp@latest (fetches from npm at runtime). Source: github.com/bnb-chain/bnbchain-mcp.

RPC: Default chains use built-in RPC; no config unless self-hosting or custom RPC.

PRIVATE_KEY: Omit or leave empty for read-only (blocks, balances, contract reads). Set in the MCP server env for state-changing tools (transfers, write_contract, approve_token_spending, ERC-8004 register/set_uri, Greenfield writes). Never log or expose private keys.

Read-only vs state-changing: Block/balance/contract-read tools work without a key; transfers and writes require PRIVATE_KEY in the server environment.

1. MCP server config

Add the bnbchain-mcp server to the MCP client config (e.g. Cursor MCP settings, Claude Desktop claude_desktop_config.json).