Time-series data from the Banco Central de Reserva del Perú (BCRP) statistics API. Pass one or more BCRP series codes joined with "-" (all must share the same frequency). Returns the series names plus aligned period/value rows. Well-known codes (verified live): PD04722MM = monetary policy referen...
Part of the Bcrp Pe server.
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AI agents call get_series to retrieve information from Bcrp Pe without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though get_series only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"get_series": {}
}
}See the full Bcrp Pe policy for all 21 tools.
These attack patterns abuse exactly the kind of access get_series gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Time-series data from the Banco Central de Reserva del Perú (BCRP) statistics API. Pass one or more BCRP series codes joined with "-" (all must share the same frequency). Returns the series names plus aligned period/value rows. Well-known codes (verified live): PD04722MM = monetary policy reference rate (monthly %); PD04638PD = interbank exchange rate S/ per US$, sell (daily); PD04640PD = banking-system (SBS) exchange rate S/ per US$, sell (daily); PN01273PM = Lima CPI, 12-month % change / annual inflation (monthly); PM04863AA = GDP, real % change (annual). Code suffix encodes frequency: ...PD/...PD = daily, ...PM/...MM = monthly, ...AA = annual. Browse more codes at https://estadisticas.bcrp.gob.pe. Optional start/end use the period format for that frequency: daily YYYY-M-D (2026-5-28), monthly YYYY-M (2026-5), annual YYYY (2024). lang is "ing" (English, default) or "esp" (Spanish).. It is categorised as a Read tool in the Bcrp Pe MCP Server, which means it retrieves data without modifying state.
Register the Bcrp Pe MCP server in PolicyLayer and add a rule for get_series: 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 Bcrp Pe. Nothing to install.
get_series 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_series 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_series. 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_series is provided by the Bcrp Pe MCP server (https://gateway.pipeworx.io/bcrp-pe/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 21 Bcrp Pe tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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