Get the list of banks and their corresponding bank codes.
AI agents call get_bank_list to retrieve information from MBBank MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves static reference data (bank codes) without modifying, executing, or deleting anything. It is a simple lookup that returns informational data. While it is part of a financial banking server, the tool itself does not move money, modify accounts, or execute transactions—it merely queries reference information. Severity is low because misuse would not cause financial or operational harm.
From the tool's definition Tool name 'get_bank_list' and description 'Get the list of banks and their corresponding bank codes' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access get_bank_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MBBank MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_bank_list:
{
"version": "1",
"default": "deny",
"tools": {
"get_bank_list": {}
}
}get_bank_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the list of banks and their corresponding bank codes. It is categorised as a Read tool in the MBBank MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MBBank MCP Server MCP server in PolicyLayer and add a rule for get_bank_list: 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 MBBank MCP Server. Nothing to install.
get_bank_list 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 get_bank_list 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 get_bank_list. 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.
get_bank_list is provided by the MBBank MCP Server MCP server (thedtvn/mbbank-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MBBank MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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11 MBBank MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.