Lexware Office (Accounting & Invoicing) MCP Server for Vercel AI SDK 14 tools — connect in under 2 minutes
The Vercel AI SDK is the TypeScript toolkit for building AI-powered applications. Connect Lexware Office (Accounting & Invoicing) through the Vinkius and every tool is available as a typed function — ready for React Server Components, API routes, or any Node.js backend.
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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 Lexware Office (Accounting & Invoicing), 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 Lexware Office (Accounting & Invoicing) MCP Server
Connect your Lexware Office (lexoffice) account to any AI agent and take full control of your cloud-based accounting and invoicing through natural conversation.
The Vercel AI SDK gives every Lexware Office (Accounting & Invoicing) tool full TypeScript type inference, IDE autocomplete, and compile-time error checking. Connect 14 tools through the 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
- Contact Management — List and structure all business contacts (customers, vendors) and create new records with precise role assignments directly from your agent
- Invoice Lifecycle — Browse chronologically sorted invoices and retrieve detailed line items, VAT breakdowns, and payment statuses securely
- Accounting Vouchers — Access a unified stream of all recorded vouchers, including expenses, revenue, and credit notes for easy bookkeeping audits
- Sales Pipeline — List and inspect quotations, order confirmations, and delivery notes to monitor your sales and logistics workflow
- Financial Configuration — Query global payment conditions and posting categories to ensure accurate account mapping and tax compliance
- Credit Notes Audit — Retrieve exact amount details and positions for credit notes to manage cancellations and financial corrections efficiently
The Lexware Office (Accounting & Invoicing) MCP Server exposes 14 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 Lexware Office (Accounting & Invoicing) to Vercel AI SDK via MCP
Follow these steps to integrate the Lexware Office (Accounting & Invoicing) 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 14 tools from Lexware Office (Accounting & Invoicing) and passes them to the LLM
Why Use Vercel AI SDK with the Lexware Office (Accounting & Invoicing) MCP Server
Vercel AI SDK provides unique advantages when paired with Lexware Office (Accounting & Invoicing) 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 Lexware Office (Accounting & Invoicing) integration everywhere
Built-in streaming UI primitives let you display Lexware Office (Accounting & Invoicing) 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
Lexware Office (Accounting & Invoicing) + Vercel AI SDK Use Cases
Practical scenarios where Vercel AI SDK combined with the Lexware Office (Accounting & Invoicing) MCP Server delivers measurable value.
AI-powered web apps: build dashboards that query Lexware Office (Accounting & Invoicing) in real-time and stream results to the UI with zero loading states
API backends: create serverless endpoints that orchestrate Lexware Office (Accounting & Invoicing) tools and return structured JSON responses to any frontend
Chatbots with tool use: embed Lexware Office (Accounting & Invoicing) capabilities into conversational interfaces with streaming responses and tool call visibility
Internal tools: build admin panels where team members interact with Lexware Office (Accounting & Invoicing) through natural language queries
Lexware Office (Accounting & Invoicing) MCP Tools for Vercel AI SDK (14)
These 14 tools become available when you connect Lexware Office (Accounting & Invoicing) to Vercel AI SDK via MCP:
create_contact
Berücksichtigt hierbei standardisierte Formatierung für Kontaktpersonen (Vorname Nachname) und Rollenzuweisungen. Neuen Geschäftsdatensatz (Kunde oder Lieferant) in Lexoffice anlegen
get_contact
Detaillierte Kontaktinformationen eines Kunden oder Lieferanten abrufen
get_credit_note
Exakte Betragsdetails und Positionen einer spezifischen Gutschrift abfragen
get_invoice
-Beträge (Steuer), Netto-/Bruttosummen sowie Statusverknüpfungen (bezahlt, offen, mahnend). Detaillierte Informationen sowie Positionen einer bestimmten Rechnung abrufen
get_quotation
Umfangreiche Einzelheiten (Beträge, Positionen) eines bestimmten Angebots betrachten
list_contacts
Nützlich zur Verwaltung der Stammdaten. Alle Kontakte (Kunden, Lieferanten) in Lexoffice strukturieren und auflisten
list_credit_notes
Gutschriftsbelegen zur buchhalterischen Prüfung nach Datum absteigend strukturiert. Historie aller in Lexoffice verzeichneten Gutschriften anzeigen
list_delivery_notes
Sammlung ausgestellter Lieferscheine (Versanddokumente) abrufen
list_invoices
Verwendet standardmäßig die paginierte Ansicht. Alle abgerechneten Rechnungen auflisten, chronologisch sortiert
list_order_confirmations
Strukturiertes Register aller bisherigen Auftragsbestätigungen aufrufen
list_payment_conditions
Stammdaten zu global hinterlegten Zahlungsbedingungen (Zahlungsziele, Skonto) abfragen
list_posting_categories
Dies regelt in der Zuordnung, auf welches DATEV- oder Interne-Konto ein Vorfall verbucht wird. Definierte Buchungskategorien / Kontorahmen für Einnahmen und Ausgaben anzeigen
list_quotations
Zusammenstellung offener und abgeschlossener Angebote auflisten
list_vouchers
Deckt Rechnungen, Gutschriften und Ausgaben in einem gebündelten Datenstrom ab. Gesamtübersicht aller Arten verbuchter Belege (Ausgaben, Einnahmen) betrachten
Example Prompts for Lexware Office (Accounting & Invoicing) in Vercel AI SDK
Ready-to-use prompts you can give your Vercel AI SDK agent to start working with Lexware Office (Accounting & Invoicing) immediately.
"List the last 5 invoices from Lexware Office"
"Show me the details for contact 'TechGmbH' (ID: cont-123)"
"What are my current payment conditions?"
Troubleshooting Lexware Office (Accounting & Invoicing) MCP Server with Vercel AI SDK
Common issues when connecting Lexware Office (Accounting & Invoicing) to Vercel AI SDK through the Vinkius, and how to resolve them.
createMCPClient is not a function
npm install @ai-sdk/mcpLexware Office (Accounting & Invoicing) + Vercel AI SDK FAQ
Common questions about integrating Lexware Office (Accounting & Invoicing) 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 Lexware Office (Accounting & Invoicing) with your favorite client
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Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Lexware Office (Accounting & Invoicing) to Vercel AI SDK
Get your token, paste the configuration, and start using 14 tools in under 2 minutes. No API key management needed.