How to Use the Facturama (SAT) MCP in Vercel AI SDK

Q: How do I handle failed invoice creation using Facturama (SAT) and Vercel AI SDK?

You catch execution errors directly in your stream. If createinvoice fails due to incorrect RFC details, your agent reads the error payload, informs the user, and suggests running gettaxstatus to troubleshoot the compliance state.

Q: Can I render invoice PDFs directly using Facturama (SAT) with Vercel AI SDK?

Yes. Your agent calls getinvoicefile to fetch the Base64 representation of the PDF. You can then decode this string on the client side to let users download their official CFDI invoice instantly.

Q: How can I send invoices via email from the frontend?

The agent triggers sendinvoiceemail directly after confirming invoice creation. This offloads the entire delivery process to Facturama's mail servers, so you do not have to write custom email-sending logic.

Build live-streaming Mexican tax invoice interfaces in React using Vercel AI SDK and the Facturama (SAT) MCP Server.

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Connect Facturama (SAT) MCP to Vercel AI SDK

Create your Vinkius account to connect Facturama (SAT) 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 Facturama (SAT) with Vercel AI SDK

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Stream live SAT invoices via this MCP Server

The Facturama (SAT) MCP Server exposes tools like `create_invoice` directly to your Vercel AI SDK frontend. Instead of making users stare at a loading spinner while the Mexican tax authority processes a transaction, your app streams the invoice generation progress live into the UI. Your AI client calls `get_invoice_file` to fetch the Base64 graphic representation and immediately renders the PDF download link on the screen in your Next.js app. No background cron jobs or polling endpoints needed.

Direct client tax onboarding in Next.js

This MCP Server lets your conversational agent invoke `create_client` during a Vercel AI SDK chat session to register a new B2B invoice receiver. The user inputs their RFC tax ID, and the agent validates it instantly against SAT rules using `get_client` to confirm compliance. If the system detects outdated information, the agent triggers `delete_client` or updates the profile before attempting to issue a CFDI in the Vercel AI SDK interface.

Real-time SAT catalog matching

Use `list_catalog` and `list_products` to match internal SKUs with official Mexican tax keys right inside the Vercel AI SDK chat window. Your agent pulls options dynamically, letting users select correct codes before finalizing their billing details. The agent verifies tax configurations using `list_taxes` and checks compliance with `get_tax_status` to prevent costly SAT filing errors in your React components.

Setup guide

Set up Facturama (SAT) 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 Facturama (SAT) 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 Facturama (SAT) 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 Facturama (SAT Mexico). 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 Facturama (SAT) MCP in Vercel AI SDK

You catch execution errors directly in your stream. If `create_invoice` fails due to incorrect RFC details, your agent reads the error payload, informs the user, and suggests running `get_tax_status` to troubleshoot the compliance state.

Yes. Your agent calls `get_invoice_file` to fetch the Base64 representation of the PDF. You can then decode this string on the client side to let users download their official CFDI invoice instantly.

Vinkius manages the authentication layer securely. You pass your endpoint token via the `createMCPClient` transport configuration, allowing your agent to safely run tools like `list_invoices` without exposing API keys to the browser.

The agent triggers `send_invoice_email` directly after confirming invoice creation. This offloads the entire delivery process to Facturama's mail servers, so you do not have to write custom email-sending logic.

Vinkius isolates all operations inside ephemeral V8 sandboxes. Your client tax profiles, RFC numbers, and CFDI financial data are never stored on Vinkius servers, maintaining strict compliance with Mexican fiscal privacy laws.

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