List all currencies supported by Money Lover (names, symbols, codes). Use this for currency metadata, not exchange rates.
AI agents call get_currencies to retrieve information from Money Lover 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 currency metadata (names, symbols, codes) without modifying any data or triggering external operations. It is a simple read operation with minimal security impact. Even if an AI agent misuses it by repeatedly calling it, the blast radius is limited to API rate limits or minor resource consumption.
From the tool's definition Tool is named 'get_currencies' and described as 'List all currencies supported by Money Lover (names, symbols, codes)'. The verb 'List' and the focus on metadata retrieval indicate a query operation with no side effects.
Attacks that exploit this kind of access
List all currencies supported by Money Lover (names, symbols, codes). Use this for currency metadata, not exchange rates. It is categorised as a Read tool in the Money Lover MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Money Lover MCP Server MCP server in PolicyLayer and add a rule for get_currencies: 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 Money Lover MCP Server. Nothing to install.
get_currencies 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_currencies 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_currencies. 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_currencies is provided by the Money Lover MCP Server MCP server (juansebashr/moneylover-mcp). 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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