Calculate Internal Rate of Return (IRR) for real estate investments with cash flow analysis
AI agents call calculate_irr to retrieve information from RealVest Real Estate 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 pure computational tool that analyzes and queries financial metrics. It reads investment parameters and cash flow data to produce an IRR calculation, but does not create, modify, delete, or execute any transactions. There are no side effects beyond returning a calculated value. The tool falls squarely into the Read category as it retrieves and analyzes data without causing any state changes.
From the tool's definition The tool description states it 'Calculate[s] Internal Rate of Return (IRR) for real estate investments with cash flow analysis' — this is a calculation/analysis operation that takes financial data as input and returns a computed result without modifying any…
Documented attack patterns abuse exactly the kind of access calculate_irr gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and RealVest Real Estate MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for calculate_irr:
{
"version": "1",
"default": "deny",
"tools": {
"calculate_irr": {}
}
}calculate_irr is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Calculate Internal Rate of Return (IRR) for real estate investments with cash flow analysis. It is categorised as a Read tool in the RealVest Real Estate MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RealVest Real Estate MCP Server MCP server in PolicyLayer and add a rule for calculate_irr: 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 RealVest Real Estate MCP Server. Nothing to install.
calculate_irr 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 calculate_irr 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 calculate_irr. 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.
calculate_irr is provided by the RealVest Real Estate MCP Server MCP server (sigaihealth/realvestmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from RealVest Real Estate MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
33 RealVest Real Estate MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.