This endpoint allows you to retrieve banks by hostname. It will return up to one bank per country that matches the provided hostname. The hostname is normalized (www. prefix removed if present) and matched against both the primary hostname and alternative hostnames.
AI agents call bank_getByHostname to retrieve information from Moon Banking MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple lookup query against a bank directory database using hostname as a search parameter. It returns informational data about banks with no side effects, no ability to modify or delete records, and no execution of external operations. The function is purely informational retrieval, fitting squarely within the Read category.
From the tool's definition Tool description states it 'allows you to retrieve banks by hostname' and 'will return' matching bank data. The verb 'retrieve' and the read-only nature of hostname lookup confirm no data modification, deletion, or code execution occurs.
Attacks that exploit this kind of access
This endpoint allows you to retrieve banks by hostname. It will return up to one bank per country that matches the provided hostname. The hostname is normalized (www. prefix removed if present) and matched against both the primary hostname and alternative hostnames. It is categorised as a Read tool in the Moon Banking MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Moon Banking MCP Server MCP server in PolicyLayer and add a rule for bank_getByHostname: 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 Moon Banking MCP Server. Nothing to install.
bank_getByHostname 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 bank_getByHostname 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 bank_getByHostname. 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.
bank_getByHostname is provided by the Moon Banking MCP Server MCP server (moonbanking/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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