NFe.io MCP Server for Vercel AI SDK 10 tools — connect in under 2 minutes
The Vercel AI SDK is the TypeScript toolkit for building AI-powered applications. Connect NFe.io through Vinkius and every tool is available as a typed function. ready for React Server Components, API routes, or any Node.js backend.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import { createMCPClient } from "@ai-sdk/mcp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";
async function main() {
const mcpClient = await createMCPClient({
transport: {
type: "http",
// Your Vinkius token. get it at cloud.vinkius.com
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
});
try {
const tools = await mcpClient.tools();
const { text } = await generateText({
model: openai("gpt-4o"),
tools,
prompt: "Using NFe.io, list all available capabilities.",
});
console.log(text);
} finally {
await mcpClient.close();
}
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About NFe.io MCP Server
Connect your AI agents to NFe.io, the leading Brazilian platform for fiscal document automation. This MCP provides 10 tools to manage the full lifecycle of Service Invoices (NFS-e), validate Brazilian municipal codes (IBGE), and monitor corporate metadata for companies integrated into your billing environment.
The Vercel AI SDK gives every NFe.io tool full TypeScript type inference, IDE autocomplete, and compile-time error checking. Connect 10 tools through Vinkius and stream results progressively to React, Svelte, or Vue components. works on Edge Functions, Cloudflare Workers, and any Node.js runtime.
What you can do
- Invoice Orchestration — Issue, cancel, and retrieve Service Invoices (NFS-e) for multiple cities across Brazil
- Company Management — List and inspect registered companies and their current fiscal configurations
- Service Definition — Manage service codes and tax metadata to ensure accurate fiscal reporting
- Fiscal Intelligence — Retrieve detailed city capabilities and validate IBGE codes for seamless municipal integration
- PDF Retrieval — Generate and retrieve download links for official invoice PDF and XML documents programmatically
The NFe.io MCP Server exposes 10 tools through the Vinkius. Connect it to Vercel AI SDK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect NFe.io to Vercel AI SDK via MCP
Follow these steps to integrate the NFe.io MCP Server with Vercel AI SDK.
Install dependencies
Run npm install @ai-sdk/mcp ai @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the script
Save to agent.ts and run with npx tsx agent.ts
Explore tools
The SDK discovers 10 tools from NFe.io and passes them to the LLM
Why Use Vercel AI SDK with the NFe.io MCP Server
Vercel AI SDK provides unique advantages when paired with NFe.io through the Model Context Protocol.
TypeScript-first: every MCP tool gets full type inference, IDE autocomplete, and compile-time error checking out of the box
Framework-agnostic core works with Next.js, Nuxt, SvelteKit, or any Node.js runtime. same NFe.io integration everywhere
Built-in streaming UI primitives let you display NFe.io tool results progressively in React, Svelte, or Vue components
Edge-compatible: the AI SDK runs on Vercel Edge Functions, Cloudflare Workers, and other edge runtimes for minimal latency
NFe.io + Vercel AI SDK Use Cases
Practical scenarios where Vercel AI SDK combined with the NFe.io MCP Server delivers measurable value.
AI-powered web apps: build dashboards that query NFe.io in real-time and stream results to the UI with zero loading states
API backends: create serverless endpoints that orchestrate NFe.io tools and return structured JSON responses to any frontend
Chatbots with tool use: embed NFe.io capabilities into conversational interfaces with streaming responses and tool call visibility
Internal tools: build admin panels where team members interact with NFe.io through natural language queries
NFe.io MCP Tools for Vercel AI SDK (10)
These 10 tools become available when you connect NFe.io to Vercel AI SDK via MCP:
cancel_merchandise_invoice
Cancel an issued Merchandise Invoice (NF-e)
cancel_service_invoice
Cancel an issued Service Invoice (NFS-e)
create_company
Register a new company (issuer) in NFe.io
get_company_details
Get detailed info for a specific company issuer
get_merchandise_invoice
Retrieve details for a specific Merchandise Invoice (NF-e)
get_service_invoice
Retrieve details for a specific Service Invoice (NFS-e)
issue_merchandise_invoice
Issue a Merchandise Invoice (NF-e)
issue_service_invoice
Issue a Service Invoice (NFS-e)
list_companies
List all companies (issuers) registered in your NFe.io account
list_webhooks
List all configured webhooks in NFe.io
Example Prompts for NFe.io in Vercel AI SDK
Ready-to-use prompts you can give your Vercel AI SDK agent to start working with NFe.io immediately.
"List all active companies in my NFe.io account."
"Check the status of service invoice ID 'inv_nfe_999888'."
"Find the IBGE code for the city of 'São Paulo'."
Troubleshooting NFe.io MCP Server with Vercel AI SDK
Common issues when connecting NFe.io to Vercel AI SDK through the Vinkius, and how to resolve them.
createMCPClient is not a function
npm install @ai-sdk/mcpNFe.io + Vercel AI SDK FAQ
Common questions about integrating NFe.io MCP Server with Vercel AI SDK.
How does the Vercel AI SDK connect to MCP servers?
createMCPClient from @ai-sdk/mcp and pass the server URL. The SDK discovers all tools and provides typed TypeScript interfaces for each one.Can I use MCP tools in Edge Functions?
Does it support streaming tool results?
useChat and streamText that handle tool calls and display results progressively in the UI.Connect NFe.io with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect NFe.io to Vercel AI SDK
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.