Bring Invoicing
to Claude Desktop
Create your Vinkius account to connect Invoice Ninja (Invoicing & Billing) to Claude Desktop and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
Compatible with every major AI agent and IDE
What is the Invoice Ninja (Invoicing & Billing) MCP Server?
Connect your Invoice Ninja account to any AI agent and take full control of your small business billing and client management through natural conversation.
What you can do
- Client Management — List all registered clients and retrieve detailed CRM data including balances, VAT identifiers, and contact histories directly from your agent
- Invoice Lifecycle — Create new invoice drafts, update line items, and manage the transition from 'Draft' to 'Sent' and 'Paid' stages securely
- Balance Audit — Fetch full tax math and raw total calculations for specific invoices to verify billing accuracy and financial reporting
- CRM Operations — Programmatically create and update client profiles with custom JSON payloads to maintain an accurate business registry
- Document Cleanup — Irreversibly delete or archive invoices and client records to maintain clean accounting totals and optimized workspace data
- Billing Workflow — Browse through your entire billing system to monitor revenue streams and track outstanding payments in real-time
How it works
- Subscribe to this server
- Enter your Invoice Ninja Domain and API Token
- Start managing your business billing from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Small Business Owners — monitor outstanding invoices and manage client balances through natural conversation during busy workdays
- Freelancers — create and update invoice drafts for clients without leaving your development or design environment
- Accountants & Ops — audit invoice line items and tax calculations to ensure financial integrity across the entire billing system
Built-in capabilities (10)
Create a new client in InvoiceNinja
Create a new invoice for a client
Delete a client from InvoiceNinja
Delete an invoice from InvoiceNinja
Get complete details of a specific InvoiceNinja client
Get details of a specific invoice
List all clients registered in InvoiceNinja
List invoices in InvoiceNinja
You must provide the fields to update encoded as a JSON string. Update an existing client in InvoiceNinja
g., from draft to sent). Provide modifications as a JSON string. Update an existing invoice
Why Claude Desktop?
Claude Desktop is the definitive way to connect Invoice Ninja (Invoicing & Billing) to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 10 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.
- —
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
Invoice Ninja (Invoicing & Billing) in Claude Desktop
Why run Invoice Ninja (Invoicing & Billing) with Vinkius?
The Invoice Ninja (Invoicing & Billing) connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Invoice Ninja (Invoicing & Billing) using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Invoice Ninja (Invoicing & Billing) and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Invoice Ninja (Invoicing & Billing) to Claude Desktop through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Invoice Ninja (Invoicing & Billing) for Claude Desktop
Every request between Claude Desktop and Invoice Ninja (Invoicing & Billing) is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Can I create a new invoice draft through my agent?
Yes. Use the create_invoice tool by providing an existing Client ID and a JSON array of line items. Your agent will generate the draft in Invoice Ninja, ready for your final review and sending.
How do I check a client's outstanding balance?
The get_client tool allows your agent to retrieve complete details for a specific client, including their current balance and payment history. This helps you quickly identify which clients need follow-up on outstanding payments.
Can my agent list all unpaid invoices?
Absolutely. Use the list_invoices tool to browse your billing system. Your agent can filter through the results to show you which invoices are still in 'Sent' or 'Overdue' status directly through natural conversation.
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.
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.
Explore More MCP Servers
View all →
NeonCRM
10 toolsManage non-profit operations via NeonCRM — track donations, memberships, and events directly from your AI agent.

Persona
27 toolsManage identity verification workflows via Persona — handle inquiries, manage accounts, and inspect verifications directly from your AI agent.

ChurnZero
8 toolsManage customer success and health via ChurnZero — track churn scores, monitor segments, and analyze account activity directly from any AI agent.

GitScrum
16 toolsManage workspaces, projects, workflows, and labels via GitScrum — browse your organizational structure and configure boards directly from any AI agent.
