calculate_equivalent_rate
Converte uma taxa de juros de um período para outro por equivalência composta (ex: 1,5% ao mês equivale a 19,56% ao ano, e não a 18%). Mostra também o que a multiplicação simples daria, para expor o erro. Parâmetros obrigatórios: rate, from, to. Use exatamente estes nomes, em inglês.
This record as markdown: /tools/com-falazuki-finance-br/calculate-equivalent-rate.md
What calculate_equivalent_rate does on FalaZuki Finance BR
AI agents call calculate_equivalent_rate to retrieve information from FalaZuki Finance BR without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
to | string | Yes | Período desejado |
from | string | Yes | Período da taxa informada |
rate | number | Yes | A taxa conhecida, em % (ex: 1.5 para 1,5%) |
Parameters from the server's own tool schema.
Why calculate_equivalent_rate is rated Low
Even though calculate_equivalent_rate only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs calculate_equivalent_rate safely
PolicyLayer is an MCP gateway: it sits between your AI agents and FalaZuki Finance BR, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For calculate_equivalent_rate, this is the rule to start with:
calculate_equivalent_rate is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect FalaZuki Finance BR, apply this rule, and every calculate_equivalent_rate call is checked against it from then on.
Questions about calculate_equivalent_rate
Converte uma taxa de juros de um período para outro por equivalência composta (ex: 1,5% ao mês equivale a 19,56% ao ano, e não a 18%). Mostra também o que a multiplicação simples daria, para expor o erro. Parâmetros obrigatórios: rate, from, to. Use exatamente estes nomes, em inglês. It is categorised as a Read tool in the FalaZuki Finance BR MCP Server, which means it retrieves data without modifying state.
calculate_equivalent_rate accepts 3 parameters: to, from, rate. Required: to, from, rate. The full parameter table on this page comes from the server's own tool schema.
Register the FalaZuki Finance BR MCP server in PolicyLayer and add a rule for calculate_equivalent_rate: 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 FalaZuki Finance BR. Nothing to install.
calculate_equivalent_rate 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_equivalent_rate 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_equivalent_rate. 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_equivalent_rate is provided by the FalaZuki Finance BR MCP server (https://mcp.falazuki.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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