Get list of all supported Nigerian banks with their codes.
AI agents call get_nigerian_banks to retrieve information from Mono Banking MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a simple data retrieval tool that queries a list of supported banks. It has no capability to modify data, execute operations, delete resources, or affect financial transactions. It is purely informational, making it a Read category tool with low severity.
From the tool's definition Tool name 'get_nigerian_banks' and description 'Get list of all supported Nigerian banks with their codes' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access get_nigerian_banks gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mono Banking MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_nigerian_banks:
{
"version": "1",
"default": "deny",
"tools": {
"get_nigerian_banks": {}
}
}get_nigerian_banks is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get list of all supported Nigerian banks with their codes. It is categorised as a Read tool in the Mono Banking MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Mono Banking MCP Server MCP server in PolicyLayer and add a rule for get_nigerian_banks: 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 Mono Banking MCP Server. Nothing to install.
get_nigerian_banks 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_nigerian_banks 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_nigerian_banks. 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_nigerian_banks is provided by the Mono Banking MCP Server MCP server (sin4ch/mono-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 12 Mono Banking MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
12 Mono Banking MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.