How to Use the BCB Juros — Selic, CDI e Expectativas Focus MCP in Vercel AI SDK

Q: How do I add BCB Juros — Selic, CDI e Expectativas Focus to my Vercel AI SDK app?

Install the @ai-sdk/mcp package first. Create an HTTP transport pointing to your Vinkius endpoint, then pass the tools directly into your text generation function.

Feed real-time Brazilian interest rates and Focus projections directly into your Next.js frontend with the Vercel AI SDK.

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Connect BCB Juros — Selic, CDI e Expectativas Focus MCP to Vercel AI SDK

Create your Vinkius account to connect BCB Juros — Selic, CDI e Expectativas Focus to Vercel AI SDK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup BCB Juros — Selic, CDI e Expectativas Focus with Vercel AI SDK

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Live Selic and CDI streaming in React

The `get_selic_diaria` and `get_cdi` tools let your frontend fetch actual daily rates straight from the Brazilian Central Bank. Your AI client grabs these interest metrics and feeds them to the user without making them wait for a full page reload. Because Vercel AI SDK handles streaming natively, these financial figures pop up on screen the millisecond the server returns them. You get instant updates for Brazilian fixed income calculators without writing complex polling logic.

Build UI widgets with this financial MCP Server

The `get_selic_meta` tool retrieves the official COPOM target rate directly inside your conversational interface. You can build interactive charts that compare this official target against daily market realities instantly. Users get a clear view of Brazilian monetary policy decisions as they happen. The SDK streams the raw data into UI components, letting you render visual graphs of Brazilian debt yields on the fly.

Render Focus Survey expectations dynamically

The `get_expectativas_selic` tool pulls the latest median, minimum, and maximum market projections from the weekly Focus Report. This lets your agent display future economic sentiment directly inside your application. Instead of boring text blocks, your Vercel AI SDK setup can map these projections into clean tables. Investors get immediate access to market sentiment without having to dig through PDF reports from the Central Bank.

Setup guide

Set up BCB Juros — Selic, CDI e Expectativas Focus 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 BCB Juros — Selic, CDI e Expectativas Focus 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 BCB Juros — Selic, CDI e Expectativas Focus transactions",
});

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

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Banco Central do Brasil. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about BCB Juros — Selic, CDI e Expectativas Focus MCP in Vercel AI SDK

Install the `@ai-sdk/mcp` package first. Create an HTTP transport pointing to your Vinkius endpoint, then pass the tools directly into your text generation function.

Yes, this MCP Server runs on lightweight endpoints fully compatible with Edge runtimes. You can query daily CDI or Selic targets without hitting cold start delays.

The SDK forwards calls directly to the Vinkius managed endpoint, which caches Central Bank responses. This keeps your application fast and prevents your server from getting blocked by the SGS API.

No, the model processes the raw tool output and structures it before sending it to your UI. You only handle the final clean data in your React components.

Absolutely. Your requests for Brazilian interest rates and Focus projections pass through a zero-trust, ephemeral V8 sandbox. No query parameters or rate requests are logged or stored permanently.

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