Are API-created contacts exactly the same as UI-created ones?

Yes contextually. When you execute the `create_contact` function natively alongside `category` parameters (`3` stands for customer, `4` for typical suppliers), sevDesk anchors these entries officially inside the identical primary table. Be clear about whether it's an email-lead versus a firm.

Wait, does my generated API Token expire if left unused?

No. The verified 32-character hexadecimal key token possesses an infinite lifeline inherently tied directly, securely, and stubbornly to your primary login account. It decays or dies primarily upon deliberate manual revocation (regeneration) directly executed by you inside your dashboard user settings.

Can I fetch detailed line items from a single invoice ID using this agent?

Absolutely. Querying `list_invoices` outputs high-level paginated arrays, but invoking the precision extractor `get_invoice` fed deliberately with a target identifier ID unveils the core metadata array detailing isolated tax mappings, due-date boundaries, and intricate line items.

sevDesk MCP Server for Claude Desktop 15 tools — connect in under 2 minutes

Name: sevDesk
Availability: InStock
Author: Vinkius

modelcontextprotocol.io/quickstart/user

Built by Vinkius GDPR 15 Tools IDE

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install sevDesk and 2,500+ MCP Servers from a single visual interface.

Download Free Open SourceNo signup required

Classic Setup·json

{
  "mcpServers": {
    "sevdesk": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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 sevDesk MCP Server

Grant your conversational AI (like Claude or Cursor) the power of a dedicated German accounting clerk. The sevDesk MCP transforms your LLM into a sophisticated financial nexus capable of creating invoices, querying past-due credit notes, recording vouchers, and tracking your CRM endpoints dynamically. Stop wrestling with browser-based accounting dashboards and let your AI manage your bookkeeping automatically.

Claude Desktop is the definitive way to connect sevDesk to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 15 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

What you can do

Client & Supplier CRM Mastery — Read the entire client database via list_contacts, retrieve detailed metadata for specific IDs (get_contact), or seamlessly register brand new vendors via create_contact
Autonomous Invoicing & Orders — Fetch paginated ledger lists using list_invoices or list_orders, and delve deep into line items, calculated taxes, and due statuses directly using get_invoice and get_order
Inventory & Service Architecture — Monitor available billable components via list_parts, inspect standard pricing, and introduce novel catalog options autonomously via create_part
Accounting Governance — Keep strict tabs on your chart of accounts with list_accounting_types while verifying associated business inlets securely using list_bank_accounts
Voucher & Credit Auditing — Consolidate physical receipts through list_vouchers and trace structural adjustments flawlessly by scanning list_credit_notes

The sevDesk MCP Server exposes 15 tools through the Vinkius. Connect it to Claude Desktop 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 sevDesk to Claude Desktop via MCP

Follow these steps to integrate the sevDesk MCP Server with Claude Desktop.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using sevDesk

Look for the 🔌 icon in the chat. your 15 tools are now available

Why Use Claude Desktop with the sevDesk MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with sevDesk through the Model Context Protocol.

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

sevDesk + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the sevDesk MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

sevDesk MCP Tools for Claude Desktop (15)

These 15 tools become available when you connect sevDesk to Claude Desktop via MCP:

create_contact

Category 3 for customers, 4 for suppliers. Creates a new contact (customer or supplier) in sevDesk

create_part

Creates a new part or service in the catalog

get_contact

Retrieves details for a specific contact

get_credit_note

Retrieves details for a specific credit note

get_invoice

Retrieves details for a specific invoice, including line items and tax

get_order

Retrieves details for a specific order

get_part

Retrieves details for a specific part

list_accounting_types

Lists all accounting types (Chart of Accounts)

list_bank_accounts

Lists company bank accounts

list_contacts

Lists all contacts (customers, suppliers) in sevDesk

list_credit_notes

Lists all credit notes

list_invoices

Lists all invoices with embedded contact data

list_orders

Lists all sales orders

list_parts

Lists all parts (products and services) in the catalog

list_vouchers

Lists all vouchers (incoming/outgoing receipts)

Example Prompts for sevDesk in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with sevDesk immediately.

"Extract the details of invoice #18742 and summarize its line items alongside the associated contact name."

"List all currently existing bank accounts natively integrated using the core config."

Troubleshooting sevDesk MCP Server with Claude Desktop

Common issues when connecting sevDesk to Claude Desktop through the Vinkius, and how to resolve them.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

sevDesk + Claude Desktop FAQ

Common questions about integrating sevDesk MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.