Converte valores entre BRL, USD e EUR calculando IOF e spread. IOF cartão de crédito segue cronograma Decreto 11.998/2024: 3,38% em 2026, 2,38% em 2027, etc. PIX e papel moeda: IOF fixo 1,1%. Retorna: valor bruto convertido, IOF, spread e valor líquido final.
AI agents call calcular_conversao_moedas_iof 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 |
|---|---|---|---|
currentDate | string | — | Data de referência YYYY-MM-DD para tabelas fiscais (INSS/IRRF/IOF/etc.). Default: hoje. |
moedaOrigem | string | Yes | Moeda de origem: BRL, USD ou EUR |
moedaDestino | string | Yes | Moeda de destino: BRL, USD ou EUR |
feesAdicionais | array | — | Fees adicionais sobre operação cambial categorizados (spread_cotacao, tarifa_remessa, taxa_cartao_internacional, tarifa_corretora, iof_complementar, taxa_recepc |
metodoConversao | string | Yes | Método: pix_transferencia (IOF 1,1%), cartao_credito (IOF decrescente 2024-2029), papel_moeda (IOF 1,1%) |
valorOrigemCents | integer | Yes | Valor a converter em centavos da moeda de origem (ex: R$ 1.000 = 100000) |
spreadCorretoraPercent | number | Yes | Spread da corretora/banco em % sobre o valor convertido (ex: 2.0) |
cambioBrlPorMoedaOrigem | number | — | Câmbio BRL por unidade da moeda de origem (obrigatório quando origem ≠ BRL; ex: 5.70 para USD) |
cambioBrlPorMoedaDestino | number | — | Câmbio BRL por unidade da moeda de destino (obrigatório quando destino ≠ BRL) |
Parameters from the server's own tool schema.
This is a calculation and lookup tool that retrieves exchange rates and applies statutory tax rates (IOF percentages from Decreto 11.998/2024) to compute what the user would pay. It performs arithmetic on input values and returns results without creating transactions, moving money, modifying data, or executing external operations.
From the tool's definition Tool 'calcular_conversao_moedas_iof' performs currency conversion calculations with IOF (tax) and spread applied. It 'Retorna' (returns) calculated values: gross converted amount, IOF, spread, and final net value.
Risk signalsHigh parameter count (12 properties)
Attacks that exploit this kind of access
Converte valores entre BRL, USD e EUR calculando IOF e spread. IOF cartão de crédito segue cronograma Decreto 11.998/2024: 3,38% em 2026, 2,38% em 2027, etc. PIX e papel moeda: IOF fixo 1,1%. Retorna: valor bruto convertido, IOF, spread e valor líquido final. It is categorised as a Read tool in the Contaí — Calculadoras Fiscais Brasileiras MCP Server, which means it retrieves data without modifying state.
calcular_conversao_moedas_iof accepts 9 parameters: currentDate, moedaOrigem, moedaDestino, feesAdicionais, metodoConversao, valorOrigemCents, spreadCorretoraPercent, cambioBrlPorMoedaOrigem, cambioBrlPorMoedaDestino. Required: moedaOrigem, moedaDestino, metodoConversao, valorOrigemCents, spreadCorretoraPercent. 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_conversao_moedas_iof: 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_conversao_moedas_iof 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_conversao_moedas_iof 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_conversao_moedas_iof. 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_conversao_moedas_iof 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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