get_rates_history
Retorna série histórica de uma taxa econômica brasileira (Selic, CDI, IPCA, IGP-M, dólar, euro, salário mínimo). Dados oficiais do Banco Central — séries SGS. Permite filtrar por intervalo de datas e agregar em mensal/anual pra reduzir volume.
This record as markdown: /tools/com-falazuki-finance-br/get-rates-history.md
What get_rates_history does on FalaZuki Finance BR
AI agents call get_rates_history 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 | — | Data final em YYYY-MM-DD (opcional) |
from | string | — | Data inicial em YYYY-MM-DD (opcional) |
limit | integer | — | Limite de pontos retornados (default 500, max 2000) |
metric | string | Yes | Métrica desejada. selic/cdi/dollar/euro são diárias; o resto é mensal. ipca e igpm vêm acumulados em 12 meses; ipcaMonthly, igpmMonthly, inpcMonthly, tr e poupa |
aggregate | string | — | Agregação: 'none' retorna pontos brutos, 'monthly' retorna 1 ponto/mês (último valor), 'yearly' retorna 1 ponto/ano. |
Parameters from the server's own tool schema.
Why get_rates_history is rated Low
Even though get_rates_history 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 get_rates_history 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 get_rates_history, this is the rule to start with:
get_rates_history 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 get_rates_history call is checked against it from then on.
Questions about get_rates_history
Retorna série histórica de uma taxa econômica brasileira (Selic, CDI, IPCA, IGP-M, dólar, euro, salário mínimo). Dados oficiais do Banco Central — séries SGS. Permite filtrar por intervalo de datas e agregar em mensal/anual pra reduzir volume. It is categorised as a Read tool in the FalaZuki Finance BR MCP Server, which means it retrieves data without modifying state.
get_rates_history accepts 5 parameters: to, from, limit, metric, aggregate. Required: metric. 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 get_rates_history: 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.
get_rates_history 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 get_rates_history 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 get_rates_history. 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.
get_rates_history 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.
More on FalaZuki Finance BR, and thousands of servers like it.
This server
Across the catalogue