calcular_juros_compostos

SERVERContaí — Calculadoras Fiscais Brasileiras SOURCE@contai-evoluke/mcp-server

Low RISK CLASS

Category Read

Parameters 64 required

Recommended Allowedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/io-github-lfhillesheim-contai-mcp-server/calcular-juros-compostos.md

WHAT IT DOES

What calcular_juros_compostos does on Contaí — Calculadoras Fiscais Brasileiras

AI agents call calcular_juros_compostos to retrieve information from Contaí — Calculadoras Fiscais Brasileiras 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
`prazoMeses`	integer	Yes	Prazo em meses (1 a 1200, equivalente a 100 anos)
`aporteAnualExtra`	integer	—	Aporte extra anual em centavos (some 13º + PLR + bônus). Aplicado a cada 12 meses. Default 0.
`aporteMensalCents`	integer	Yes	Aporte mensal em centavos (R$ 500 = 50000); 0 se não houver
`taxaMensalPercent`	number	Yes	Taxa de juros mensal em % (1 = 1% ao mês)
`capitalInicialCents`	integer	Yes	Capital inicial em centavos (R$ 10.000 = 1000000)
`crescimentoAporteMensalPercent`	number	—	Crescimento % anual do aporte mensal (emparelha com inflação salarial). Default 0.

Parameters from the server's own tool schema.

RISK

Why calcular_juros_compostos is rated Low

This is a financial calculator that simulates investment scenarios and returns computational results. It does not execute trades, process payments, move money, modify records, or trigger external operations. It is purely informational—retrieving calculated projections based on input parameters. This fits the Read category (retrieves/queries data with no side effects).

From the tool's definition Tool description explicitly states it 'Simula juros compostos' (simulates compound interest) and 'Retorna valor futuro' (returns future value), 'total aportado' (total contributed), 'juros acumulados' (accumulated interest) and 'série mensal' (monthly series).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs calcular_juros_compostos safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Contaí — Calculadoras Fiscais Brasileiras, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For calcular_juros_compostos, this is the rule to start with:

calcular_juros_compostos Allowed

calcular_juros_compostos is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "calcular_juros_compostos": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Contaí — Calculadoras Fiscais Brasileiras, apply this rule, and every calcular_juros_compostos call is checked against it from then on.

FAQ

Questions about calcular_juros_compostos

What does the calcular_juros_compostos tool do? +

Simula juros compostos com aportes mensais. Fórmula: VF = PV×(1+i)^n + PMT×[((1+i)^n−1)/i]. Útil para planejamento de investimento (Tesouro, CDB, previdência), FIRE, aposentadoria. Retorna valor futuro, total aportado, juros acumulados e série mensal (saldo mês a mês). Não desconta IR (para renda fixa, aplicar 15% sobre juros). It is categorised as a Read tool in the Contaí — Calculadoras Fiscais Brasileiras MCP Server, which means it retrieves data without modifying state.

What parameters does calcular_juros_compostos accept? +

calcular_juros_compostos accepts 6 parameters: prazoMeses, aporteAnualExtra, aporteMensalCents, taxaMensalPercent, capitalInicialCents, crescimentoAporteMensalPercent. Required: prazoMeses, aporteMensalCents, taxaMensalPercent, capitalInicialCents. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on calcular_juros_compostos? +

Register the Contaí — Calculadoras Fiscais Brasileiras MCP server in PolicyLayer and add a rule for calcular_juros_compostos: 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 Contaí — Calculadoras Fiscais Brasileiras. Nothing to install.

What risk level is calcular_juros_compostos? +

calcular_juros_compostos is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit calcular_juros_compostos? +

Yes. Add a rate_limit block to the calcular_juros_compostos 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.

How do I block calcular_juros_compostos completely? +

Set action: deny in the PolicyLayer policy for calcular_juros_compostos. 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.

What MCP server provides calcular_juros_compostos? +

calcular_juros_compostos is provided by the Contaí — Calculadoras Fiscais Brasileiras MCP server (@contai-evoluke/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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