Compara rentabilidade líquida de renda fixa: CDB vs LCI vs Tesouro Direto vs Poupança. CDB e Tesouro: IR regressivo (22,5% a 15%) + IOF se < 30 dias. LCI e Poupança: isentos de IR. Poupança: 0,5%/mês (Selic > 8,5%) ou 70% Selic. Retorna ranking por rentabilidade líquida, melhor opção e margem sob...
AI agents call calcular_cdb_vs_lci_vs_tesouro_vs_poupanca to retrieve information from Contaí — Calculadoras Fiscais Brasileiras without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
prazoDias | integer | Yes | Prazo da aplicação em dias corridos (1 a 10.800) |
tesouroTipo | string | Yes | Tipo de Tesouro Direto: selic, prefixado ou ipca |
cdbPercentCdi | number | Yes | Rentabilidade do CDB como % do CDI (ex: 110 = 110% CDI) |
lciPercentCdi | number | Yes | Rentabilidade da LCI como % do CDI (ex: 90 = 90% CDI) |
cdiAtualPercent | number | Yes | CDI atual anual em % (ex: 10.5) |
selicAtualPercent | number | Yes | SELIC atual anual em % (ex: 10.75) |
valorAplicadoCents | integer | Yes | Valor a aplicar em centavos (ex: R$ 10.000 = 1000000) |
ipcaProjetadoPercent | number | Yes | IPCA projetado anual em % (ex: 4.5) |
tesouroTaxaIpcaPercent | number | Yes | Taxa real anual do Tesouro IPCA+ em % (ex: 6.5 para IPCA+6,5%) |
tesouroTaxaPrefixadaPercent | number | Yes | Taxa anual do Tesouro Prefixado em % (ex: 12.5) |
Parameters from the server's own tool schema.
This tool retrieves and calculates financial comparison data based on fixed parameters and market rates. It does not execute trades, move money, create accounts, or modify any underlying financial systems. It is purely informational/computational—a financial calculator that reads input data and produces analytical output. No irreversible changes, no external state modification, no transaction execution.
From the tool's definition Tool compares and calculates returns on fixed-income investment options (CDB, LCI, Tesouro Direto, Poupança).
Risk signalsHigh parameter count (10 properties)
Attacks that exploit this kind of access
Compara rentabilidade líquida de renda fixa: CDB vs LCI vs Tesouro Direto vs Poupança. CDB e Tesouro: IR regressivo (22,5% a 15%) + IOF se < 30 dias. LCI e Poupança: isentos de IR. Poupança: 0,5%/mês (Selic > 8,5%) ou 70% Selic. Retorna ranking por rentabilidade líquida, melhor opção e margem sobre 2º colocado. It is categorised as a Read tool in the Contaí — Calculadoras Fiscais Brasileiras MCP Server, which means it retrieves data without modifying state.
calcular_cdb_vs_lci_vs_tesouro_vs_poupanca accepts 10 parameters: prazoDias, tesouroTipo, cdbPercentCdi, lciPercentCdi, cdiAtualPercent, selicAtualPercent, valorAplicadoCents, ipcaProjetadoPercent, tesouroTaxaIpcaPercent, tesouroTaxaPrefixadaPercent. Required: prazoDias, tesouroTipo, cdbPercentCdi, lciPercentCdi, cdiAtualPercent, selicAtualPercent, valorAplicadoCents, ipcaProjetadoPercent, tesouroTaxaIpcaPercent, tesouroTaxaPrefixadaPercent. The full parameter table on this page comes from the server's own tool schema.
Register the Contaí — Calculadoras Fiscais Brasileiras MCP server in PolicyLayer and add a rule for calcular_cdb_vs_lci_vs_tesouro_vs_poupanca: 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.
calcular_cdb_vs_lci_vs_tesouro_vs_poupanca 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 calcular_cdb_vs_lci_vs_tesouro_vs_poupanca 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 calcular_cdb_vs_lci_vs_tesouro_vs_poupanca. 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.
calcular_cdb_vs_lci_vs_tesouro_vs_poupanca 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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