bcb_comparar
Compare 2 to 5 series over the same period with ranking (same level/compounding rule per series, declared in metodo)
How to use it
bcb_comparar is exposed by the Bcb Br MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the bcb_comparar tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Bcb Br MCP
npx -y bcb-br-mcpOther tools in Bcb Br MCP (14)
Search series by name or description (accent-insensitive)
PTAX quote for a currency (USD by default), single day or date range
Currencies with quotes published by the BCB
Focus survey expectations for one indicator, horizon as a parameter (monthly, quarterly, annual, rolling 12m/24m inflation); top5 flag
Which indicators and reference dates the Focus survey actually publishes, broken down per scope (the five horizons plus selic, whose axis is the Copom meeting) — the indicator set differs by scope (9 monthly vs 26 annual)
Focus expectations for the Selic rate, by Copom meeting (R1/2026 form)
Latest values: Selic, IPCA, USD/BRL, IBC-Br
Get series metadata (name, frequency, category, last value)
Get the last N values of a series (any N — the upstream cap of 20 is worked around)
Query series values by code and date range; slices long windows automatically and can harmonise the series to a coarser frequency
List popular series grouped by category
Percentage variation of one series over a period: level change for level series, compounded accumulation for series that are already period-on-period rates (IPCA, IGP-M, INPC…); analise.metodo says which
OpenAI Deep Research contract: returns one series as a readable document with its canonical public URL
OpenAI Deep Research contract: searches the series catalog (curated + open data portal index) and returns { id, title, url } — see ChatGPT (Deep Research)