Invoicing Plus MCP for AI. Manage Billing and Client Accounts via Chat.
Works with every AI agent you already use
…and any MCP-compatible client








Connect to your AI in seconds.
Invoicing Plus connects your billing system directly to any AI agent. Create professional invoices, track payments, and manage client estimates using natural conversation—no need to open the billing app.
You can list clients, generate new customer records, monitor outstanding balances, and view product pricing all through chat.
What your AI can do
Create customer
Adds a brand new customer record using their name and email address.
Get company
Retrieves the details for one specific company profile.
Get customer
Pulls all the information for a single, existing customer account.
Create fully detailed invoices or estimates using line items and proper tax calculations.
View existing companies, look up specific customer profiles, and create new contacts for billing.
Review payment histories to see which invoices are paid, outstanding, or overdue.
Get an overview of total revenue, the number of active clients, and current cash flow trends.
Ask an AI about this
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Invoicing Plus: 12 Billing Tools Available
These twelve tools let you handle every aspect of billing—from creating new contacts to listing payment history and generating finished invoices.
Make your AI actually useful.
Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Invoicing Plus on VinkiusCreate Customer
Adds a brand new customer record using their name and email address.
Get Company
Retrieves the details for one specific company profile.
Get Customer
Pulls all the information for a single, existing customer account.
Get Estimate
Retrieves the details for one specific project estimate.
Get Invoice
Fetches all details for one specific invoice number or ID.
Get Item
Retrieves the details for one specific product or service item.
List Companies
Shows a list of every company currently in your Invoicing Plus system.
List Customers
Provides a full list of every customer record in the billing system.
List Estimates
Shows a list of all created and saved estimates.
List Invoices
Provides a comprehensive list of all invoices generated in the system.
List Items
Lists all available products and services along with their current pricing.
List Payments
Lists all payment transactions recorded against your accounts.
Security and governance baked right in.
Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.
Choose How to Get Started
Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.
Build Your Own
Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.
- Import from OpenAPI, Swagger, or YAML specs
- Create Agent Skills with progressive disclosure
- Deploy to edge with MCPFusion framework
- Built in DLP, auth, and compliance on every call
- Real time usage dashboard and cost metering
- Publish to catalog or keep private
Make Your AI Do More
Start with Invoicing Plus, then connect any of our 5,000+ other servers whenever your AI needs more. One click, no limits.
- Use this MCP plus 5,000+ others, all in one place
- Add new capabilities to your AI anytime you want
- Every connection is secured and compliant automatically
- Track usage and costs across all your servers
- Works with Claude, ChatGPT, Cursor, and more
- New servers added to the catalog every week
Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Invoicing Plus. 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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Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This connection provides 12 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.
Billing means clicking through four different dashboards today.
Right now, generating an invoice is a multi-step process. You have to log into your client list, pull up their profile, navigate to the 'Create' tab, manually select line items from a product catalog dropdown, input tax rates, and then finally click 'Send.' It's tedious, and you lose time jumping between tabs.
With this MCP, you don't touch any dashboards. You talk to your agent: 'Generate an invoice for Acme Corp using the Web Development rate.' The system handles finding the client record, accessing the correct product price, calculating tax, and drafting the document—all in one conversation.
Invoicing Plus MCP Gives You Full Billing Control
The manual steps that vanish are: searching for client IDs, confirming product codes, manually calculating totals across multiple fields, and then remembering to send a follow-up email about overdue payments. Those tedious checks disappear.
Now you get total financial visibility from one chat window. You just ask the question—like 'What's my outstanding balance?'—and the MCP gives you the real answer, complete with client names and amounts.
What your AI can actually do with this
This MCP lets you handle your entire billing cycle without jumping between tabs or logging into a separate web app. Need an invoice for Acme Corp? Just ask your AI agent to create it with three line items, specifying the tax rate. It calculates everything—subtotal, tax, total—and even shows which invoices are overdue.
The system keeps track of your entire client base, letting you easily find profiles and review payment histories. If you're a freelancer, this means generating and sending professional documents in minutes. Small businesses use it to monitor cash flow by tracking outstanding amounts across multiple clients. Accountants can quickly audit records or check total revenue trends just by asking the right questions.
With Vinkius, your agent connects directly to Invoicing Plus data, letting you manage accounts through simple chat commands.
019dd10d-1448-704a-a842-7de5429a9945 Here's how it actually works
The bottom line is: it brings complex financial operations into plain chat conversation.
Subscribe to this MCP on Vinkius and provide your Invoicing Plus API key.
Direct your conversation to your AI agent using a prompt like 'Create an invoice for X.'
Your agent calls the necessary tools, pulling data from the service and providing you with the final document details or status updates.
Who is this actually for?
Freelancers who hate paying for expensive CRM software, and small business owners tired of manually compiling revenue reports from multiple sources. It’s built for anyone whose job involves sending money or tracking accounts.
Uses the MCP to generate and send invoices immediately after a project wraps up, without logging into any dedicated billing application.
Relies on it to track payment statuses across dozens of clients and monitor cash flow by checking outstanding amounts daily.
Uses the toolset to pull historical data, review client profiles, and quickly audit revenue trends for month-end reports.
What Changes When You Connect
Instantly generate invoices. Instead of building a document in a web app, you just prompt your agent to 'Create an invoice for X with three items.' It handles the math automatically.
Keep track of who owes money. You can ask the MCP to list payments or check overdue accounts without digging into reports. The payment tracking is immediate.
Never lose client data. Need a quick overview? Your agent can pull all customer details by calling 'list_customers' and summarize their history for you.
Build invoices from scratch instantly. Use the MCP to browse products via 'list_items', pick services, and get accurate pricing before you even send the document.
Review your cash flow summary. You don't have to manually calculate revenue trends; asking for a client revenue summary gives you total outstanding amounts right away.
See it in action
Closing out a large contract
A project finished, and the owner needs an invoice. They ask their agent: 'Create an invoice for Acme Corp with Web Development ($5k) and UI Design ($2.5k).' The agent uses these tools to calculate tax, total amount, and status.
Checking who hasn't paid
The bookkeeper needs a quick cash flow check. They ask the MCP: 'Show me all overdue invoices.' The agent calls list_invoices and filters for payments that are past due, giving them immediate action items.
Onboarding a new client
A small business owner gets a lead. They ask the MCP to create a record: 'New customer needed at Beta Inc.' The agent uses the create_customer tool, adding the company to the ledger instantly.
Auditing past work
An accountant needs proof of services rendered last quarter. They prompt the MCP with a client name and ask for payment history. The agent uses get_customer and list_payments to build the full audit trail.
The honest tradeoffs
Only listing tool names
Writing 'Use create_customer, then get_invoice, then list_items' doesn't tell you what the process is or why it matters to your job.
Don't list tools; describe the outcome. Tell your agent: 'Set up a new client profile for Acme Corp and draft an invoice using web development services.' This tells the AI exactly what steps to take.
Ignoring required details
Asking only, 'What are my invoices?' The agent can't answer because it doesn't know if you want a list of all invoices or just overdue ones.
Be specific. Ask: 'List all invoices from the last month that are marked as outstanding.' This directs the MCP to filter the data correctly.
Relying on manual data entry
Copy-pasting client names and item codes into a spreadsheet before generating anything.
Let your agent handle it. Ask the MCP to 'List all companies' first, then select one by name and ask for their latest payment status. It handles the connection.
When It Fits, When It Doesn't
Use this MCP if your core business process involves generating financial documents (invoices, estimates) or actively managing a client ledger. If you need to know who owes money, what services were sold, or how many customers you have, this is for you. Don't use it if you only need simple data lookups that don't involve transactions; for example, if all you want is to filter names in a list without checking payment status, another general contact tool might be cleaner. But if the goal involves money—creation, tracking, or summarizing revenue—this MCP handles the full cycle.
Questions you might have
How do I create a new client using the create_customer tool? +
You provide the name and email address of the new customer. This immediately builds the record into your system, allowing you to track payments against them later.
Can I get details on an invoice using the get_invoice tool? +
Yes, if you know the specific invoice number or ID, this tool pulls every detail about it—the items sold, the tax rate, and the total amount due.
What is list_items for in the Invoicing Plus MCP? +
list_items lets you see a master catalog of everything you charge for. You can browse all available products and services along with their current pricing to make sure your invoice costs are accurate.
Does list_payments show me how much is owed? +
No, list_payments shows actual transactions that have occurred (paid or otherwise). To see outstanding amounts, you need to review the total revenue summary after calling list_invoices.
Before calling `list_companies`, what authentication method does the Invoicing Plus MCP require? +
You need a valid API key to connect. Your AI client must pass this key during setup; it authorizes all subsequent calls through the MCP connection.
When using the `get_estimate` tool, what happens if the associated customer record is missing? +
The MCP returns a standard 404 error. You'll need to check and create the client first before requesting any estimate data for that user.
How can I view all potential billing options using `list_estimates`? +
list_estimates provides details on pending invoices, including their total value, the associated client, and the expected due date. This helps you track money that hasn't been finalized into a formal invoice.
If I need to retrieve thousands of records using `list_invoices`, are there rate limits? +
Yes, high-volume calls require pagination. Always request data in batches and manage your API usage carefully to avoid hitting established call limits.
Can I create and send invoices through the AI agent? +
Yes. Use the invoice creation tools with client ID, line items, and tax settings. Browse products for quick item selection and send invoices directly to clients.
Can I track overdue invoices and payment status? +
Yes. List invoices with status filters to identify overdue, paid, and pending invoices. Track payment amounts and dates for cash flow monitoring.
Can I manage my product catalog? +
Yes. Browse all products and services with pricing. Use products directly when creating invoices for quick line item selection.
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