Compute the address where a contract will be deployed (CREATE opcode)
AI agents call compute_contract_address to retrieve information from BNB Chain MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a deterministic mathematical computation to predict a contract address based on deployer address and nonce. It reads/calculates data only, with no side effects, no deployment, and no state changes on-chain.
From the tool's definition Compute the address where a contract will be deployed (CREATE opcode)
Documented attack patterns abuse exactly the kind of access compute_contract_address gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BNB Chain MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for compute_contract_address:
{
"version": "1",
"default": "deny",
"tools": {
"compute_contract_address": {}
}
}compute_contract_address is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Compute the address where a contract will be deployed (CREATE opcode). It is categorised as a Read tool in the BNB Chain MCP MCP Server, which means it retrieves data without modifying state.
Register the BNB Chain MCP server in PolicyLayer and add a rule for compute_contract_address: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches BNB Chain MCP. Nothing to install.
compute_contract_address is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the compute_contract_address rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for compute_contract_address. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
compute_contract_address is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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1240 BNB Chain MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.