MCP For Claude Marketplace
Invoice Ninja (Invoicing & Billing)

Invoice Ninja (Invoicing & Billing) MCP Connector for Claude

A+

Manage invoicing via Invoice Ninja — create clients, track payments, and manage invoices and balances.

10 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

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

  1. Subscribe to this server
  2. Enter your Invoice Ninja Domain and API Token
  3. 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
invoicingexpense-trackingtime-trackingclient-managementopen-sourcesmall-business

10 tools expose this connector's capabilities to your AI agent.

delete_client

Delete a client from InvoiceNinja

create_client

Create a new client in InvoiceNinja

create_invoice

Create a new invoice for a client

delete_invoice

Delete an invoice from InvoiceNinja

get_client

Get complete details of a specific InvoiceNinja client

get_invoice

Get details of a specific invoice

list_clients

List all clients registered in InvoiceNinja

list_invoices

List invoices in InvoiceNinja

update_client

You must provide the fields to update encoded as a JSON string. Update an existing client in InvoiceNinja

update_invoice

g., from draft to sent). Provide modifications as a JSON string. Update an existing invoice

See how to talk to your AI agent using Invoice Ninja (Invoicing & Billing).

List the last 5 invoices generated this month

I've retrieved the latest 5 invoices. Highlights include INV-001 ($1,200, Paid), INV-002 ($450, Sent), and INV-003 ($2,100, Draft). Would you like to see the detailed line items for any of these?

Show me the details for client 'TechCorp' (ID: client-987)

Client 'TechCorp' (ID: client-987) has a current balance of $3,500. They have 12 total invoices, with 2 currently outstanding. Their primary contact is sarah@techcorp.com. Would you like to create a new invoice for them?

Create a new client: 'Future Labs' with email 'billing@futurelabs.io'

Client 'Future Labs' created successfully. ID: client-012. You can now generate invoices for this client or update their profile with additional VAT and address information. Would you like to add an address now?

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.

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