How to Use the BCB Câmbio — Dólar PTAX, Euro e 150+ Moedas MCP in Vercel AI SDK

Q: How do I connect BCB Câmbio — Dólar PTAX, Euro e 150+ Moedas to Vercel AI SDK as an MCP Server?

Install @ai-sdk/mcp and ai via npm. Initialize the connection using createMCPClient with your Vinkius HTTP transport URL. Pass the returned tools into your streamText call.

Stream official Brazilian Central Bank exchange rates directly into your Next.js apps with the Vercel AI SDK.

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Connect BCB Câmbio — Dólar PTAX, Euro e 150+ Moedas MCP to Vercel AI SDK

Create your Vinkius account to connect BCB Câmbio — Dólar PTAX, Euro e 150+ Moedas 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 Câmbio — Dólar PTAX, Euro e 150+ Moedas with Vercel AI SDK

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Stream PTAX Dollar Rates via MCP Server

Your Vercel AI SDK client pulls official USD/BRL reference rates using the `get_cotacao_dolar` MCP tool. Users see the exact buy and sell values appear on their screen without waiting for a loading spinner. The AI fetches the PTAX rate directly from the Central Bank dealers. You can also grab historical data right into your UI components. Passing a date range to `get_dolar_periodo` streams back the opening, intermediate, and closing bulletins up to a year. Edge functions handle the request instantly.

Build Live Currency Dashboards

The `get_cotacao_moeda` tool lets your agent fetch exchange rates for over 150 global currencies against the Brazilian Real. Your React frontend renders the buy and sell spreads for everything from Euros to the Thai Baht as the model types out the response. Finding the right currency code happens automatically. The `listar_moedas` operation feeds the complete catalog into your prompt context. Your users just type "Mexican Peso" and the system maps it to MXN before pulling the live numbers.

Render Decade-Long SGS Time Series

Historical commercial dollar series load directly into your charting libraries via the `get_dolar_sgs` tool. This endpoint handles massive date ranges that the standard PTAX tool limits. You specify the start and end dates in standard DD/MM/YYYY format. Streaming these long arrays through `streamText` means your Svelte or Vue charts start drawing immediately. The connection to Vinkius stays open just long enough to pull series 1 (buy) or 10813 (sell), then safely closes.

Setup guide

Set up BCB Câmbio — Dólar PTAX, Euro e 150+ Moedas 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 Câmbio — Dólar PTAX, Euro e 150+ Moedas 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 Câmbio — Dólar PTAX, Euro e 150+ Moedas transactions",
});

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

Get your connection token →

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 Câmbio — Dólar PTAX, Euro e 150+ Moedas MCP in Vercel AI SDK

Install `@ai-sdk/mcp` and `ai` via npm. Initialize the connection using `createMCPClient` with your Vinkius HTTP transport URL. Pass the returned tools into your `streamText` call.

Yes. Calling the period tools returns bulk historical data. The SDK streams these JSON arrays piece-by-piece so your UI starts rendering the data table before the central bank API finishes sending the full payload.

The standard period tool needs MM-DD-YYYY. If you switch to the SGS time series tool for longer queries, you must pass DD/MM/YYYY instead.

Vinkius manages the authentication layer. You just provide your single endpoint token in the HTTP transport configuration. Always remember to call `mcpClient.close()` when your edge function finishes.

Your date ranges and currency codes run through a V8 Isolate Sandbox on Vinkius. The ephemeral environment spins up just to fetch the BRL/USD or exotic currency rates and destroys itself immediately. Zero-trust architecture ensures no query parameters are stored.

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