How to Use the IBGE Localidades — Cidades do Brasil MCP in Vercel AI SDK

Q: How do I handle streaming UI updates for Brazilian cities using IBGE Localidades — Cidades do Brasil in the Vercel AI SDK?

Call createMCPClient to connect to the MCP Server and pass its tools directly to your streaming call. When the user selects a state, your agent calls getmunicipiosporuf and streams the city list straight to your React frontend.

Feed real-time Brazilian administrative data directly into your React components using the Vercel AI SDK and this MCP Server.

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Connect IBGE Localidades — Cidades do Brasil MCP to Vercel AI SDK

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Setup IBGE Localidades — Cidades do Brasil with Vercel AI SDK

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Stream Brazilian Cities Live in Vercel AI SDK

The `get_municipios_por_uf` tool streams complete lists of Brazilian cities directly into your Next.js frontend. Selectors update dynamically as the model fetches each city, keeping your checkout form responsive. You don't need an intermediate database to clean up Brazilian administrative data. This MCP Server formats raw IBGE responses so your Vercel AI SDK client can immediately populate autocomplete inputs.

Zero-Latency Lookup by IBGE Code

The `get_municipio` tool performs zero-latency lookups of individual Brazilian municipalities using their official 7-digit codes. Pass this code inside your Edge Functions to bypass heavy database queries for Brazilian addresses. This setup keeps your Vercel AI SDK serverless execution times low. You pull exact city details right when the user types a Brazilian postal code.

Live Metropolitan Region Mapping

The `list_regioes_metropolitanas` tool maps metropolitan groupings to build localized shipping zones in your UI. Your Vercel AI SDK application feeds these regional boundaries straight to your map components without blocking the main thread. Users get instant visual feedback on Brazilian regional logistics. By using this MCP Server, you avoid shipping errors caused by stale administrative boundary files.

Setup guide

Set up IBGE Localidades — Cidades do Brasil MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all IBGE Localidades — Cidades do Brasil tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent IBGE Localidades — Cidades do Brasil transactions",
});

console.log(text);
await mcpClient.close();

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Common questions about IBGE Localidades — Cidades do Brasil MCP in Vercel AI SDK

Call `createMCPClient` to connect to the MCP Server and pass its tools directly to your streaming call. When the user selects a state, your agent calls `get_municipios_por_uf` and streams the city list straight to your React frontend.

Yes, this setup operates over standard HTTP transport, making it lightweight enough for Edge runtimes. You can call `list_estados` to populate state dropdowns globally with zero cold-start penalty.

You should wrap your client initialization in a standard timeout handler. If the public IBGE endpoint lags, your Next.js app can fall back to a cached list of states from `list_estados` to prevent UI freezing.

Here's the thing: you don't need any API keys or tokens. No, this MCP Server requires zero authentication, so you can query `list_regioes` or individual municipalities immediately after initializing your client.

The MCP Server only processes public administrative data like the 7-digit codes in `get_municipio` or state abbreviations. It never collects, stores, or transmits your users' personal coordinates or addresses.

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