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BNB Chain MCP server connection and tool usage. Covers npx @bnb-chain/mcp@latest, PRIVATE_KEY and RPC, and every MCP tool — blocks, transactions, contracts, ERC20/NFT transfers, wallet, ERC-8004 agent
The skill file stays in the publisher's repository.
Paste the copied command in a terminal. It installs this SKILL.md into that agent.
npx skills add internet-court/internet-court-skill --skill bnbchain-mcp -a cursor -y
BNB Chain MCP server connection and tool usage. Covers npx @bnb-chain/mcp@latest, PRIVATE_KEY and RPC, and every MCP tool — blocks, transactions, contracts, ERC20/NFT transfers, wallet, ERC-8004 agent registration, Greenfield. Use when connecting to bnbchain-mcp, querying or transacting on BNB Chain/opBNB/EVM, registering as ERC-8004 agent, or using Greenfield.
BNB Chain MCP server connection and tool usage. Covers npx @bnb-chain/mcp@latest, PRIVATE_KEY and RPC, and every MCP tool — blocks, transactions, contracts, ERC20/NFT transfers, wallet, ERC-8004 agent registration, Greenfield. Use when connecting to bnbchain-mcp, querying or transacting on BNB Chain/opBNB/EVM, registering as ERC-8004 agent, or using Greenfield.
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.
npx @bnb-chain/mcp@latest (fetches from npm at runtime). Source: github.com/bnb-chain/bnbchain-mcp.env for state-changing tools (transfers, write_contract, approve_token_spending, ERC-8004 register/set_uri, Greenfield writes). Never log or expose private keys.PRIVATE_KEY in the server environment.Add the bnbchain-mcp server to the MCP client config (e.g. Cursor MCP settings, Claude Desktop claude_desktop_config.json).
Default (stdio):
{
"mcpServers": {
"bnbchain-mcp": {
"command": "npx",
"args": ["-y", "@bnb-chain/mcp@latest"],
"env": {
"PRIVATE_KEY": ""
}
}
}
}
SSE mode: "args": ["-y", "@bnb-chain/mcp@latest", "--sse"] (and client SSE URL if required). Local dev server (e.g. bun dev:sse in bnbchain-mcp): "url": "http://localhost:3001/sse" with the same env.
Restart or reload the MCP client after changing config so the server starts.
env when state-changing tools are needed; leave empty for read-only. Do not commit or echo keys.register_erc8004_agent (see references/erc8004-tools-reference.md).network is optional; default is bsc. Use get_supported_networks to list options.transfer_native_token, transfer_erc20, transfer_nft, transfer_erc1155, approve_token_spending, write_contract, register_erc8004_agent, set_erc8004_agent_uri, Greenfield writes): network is REQUIRED. There is no default for writes. If the user does not specify the network, you MUST ask before calling the tool. Do not assume or default to mainnet (bsc); accidental mainnet execution causes irreversible financial loss.| Category | Examples | Needs PRIVATE_KEY? |
|---|---|---|
| Blocks | get_latest_block, get_block_by_number, get_block_by_hash | No |
| Transactions | get_transaction, get_transaction_receipt, estimate_gas | No (estimate only) |
| Network | get_chain_info, get_supported_networks | No |
| Wallet / balance | get_native_balance, get_erc20_balance, get_address_from_private_key | Balance: optional address or privateKey |
| Transfers / writes | transfer_native_token, transfer_erc20, transfer_nft, transfer_erc1155, approve_token_spending, write_contract | Yes |
| Contracts | read_contract, is_contract | No for read |
| Tokens / NFT | get_erc20_token_info, get_nft_info, get_erc1155_token_metadata, check_nft_ownership, get_nft_balance, get_erc1155_balance | No for read |
| ERC-8004 | register_erc8004_agent, set_erc8004_agent_uri, get_erc8004_agent, get_erc8004_agent_wallet | Register/set_uri: Yes |
| Greenfield | gnfd_* bucket/object/payment tools | Writes: Yes |
Use the MCP prompt names when the user wants analysis or guidance:
For parameter names, examples, and detailed usage of each tool, use:
| Reference | Content |
|---|---|
| references/evm-tools-reference.md | Blocks, transactions, network, wallet, contracts, tokens, NFT — all EVM tools |
| references/erc8004-tools-reference.md | register_erc8004_agent, set_erc8004_agent_uri, get_erc8004_agent, get_erc8004_agent_wallet |
| references/greenfield-tools-reference.md | Buckets, objects, folders, payment accounts — all Greenfield tools |
| references/prompts-reference.md | All MCP prompts and when to use them |
transfer_*, write_contract, or approve_token_spending, confirm recipient, amount, and network before calling the tool.write_contract, approve_token_spending, ERC-8004 register/set_uri), you MUST have an explicit network from the user. If not specified, ask — do not default to mainnet. Do not use advisory language like "prefer testnet" as a substitute; the constraint is: no network specified → do not call the write tool until the user confirms.env; never in chat or logs.npx @bnb-chain/mcp@latest