`name_frequency`

Pack: ibge-br · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/name_frequency for the schema, then POST the same URL with its arguments for the data.

Brazilian census name statistics. Pass a first name to get its registration frequency by decade (since 1930), optionally filtered by sex or state. e.g. name=“maria”. Pass name=“ranking” to get the top names instead.

Parameters

Name	Type	Required	Description
`name`	string	yes	First name to look up, e.g. “maria”, “joao”. Special value “ranking” returns the most popular names.
`sex`	string	no	Optional filter: “M” or “F”.
`locality`	string	no	Optional 2-digit state id, e.g. “33” (RJ), “35” (SP). Omit for whole country (BR).
`decade`	string	no	Optional decade filter for ranking, e.g. “1990”, “2000”.

Example call

Arguments

{
  "name": "maria",
  "sex": "F"
}

curl

curl -X POST https://gateway.pipeworx.io/ibge-br/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"name_frequency","arguments":{"name":"maria","sex":"F"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('name_frequency', {
  "name": "maria",
  "sex": "F"
});

More examples

{
  "name": "ranking",
  "decade": "2000"
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the ibge-br pack

{
  "mcpServers": {
    "ibge-br": {
      "url": "https://gateway.pipeworx.io/ibge-br/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

name_frequency