Generates a random routing number.
AI agents call finance-routingNumber to retrieve information from Faker MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool generates fake/random data using Faker.js — it does not retrieve real data, write to any system, execute code, or perform financial transactions. It simply produces a synthetic routing number string for testing or development purposes. Severity is low as misuse only results in fake data being used in a context expecting real data.
From the tool's definition Generates a random routing number
Attacks that exploit this kind of access
Generates a random routing number. It is categorised as a Read tool in the Faker MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Faker MCP Server MCP server in PolicyLayer and add a rule for finance-routingNumber: 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 Faker MCP Server. Nothing to install.
finance-routingNumber 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 finance-routingNumber 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 finance-routingNumber. 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.
finance-routingNumber is provided by the Faker MCP Server MCP server (kentrino/faker-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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