Developer Tools

Invoice Ninja MCP Server

Connect your account, then chat with AI to run tools.

Invoice Ninja is an open-source invoicing and billing platform for freelancers and small businesses. Create and manage invoices, track payments, handle clients and projects, manage expenses, and automate billing workflows for streamlined financial operations.

Managed
24 tools
Agent guide included

Opens MCPBundles Studio with this server selected. After sign-in, chat and run tools from the same thread.

Browse all tools

AI Skill
SKILL.md

Domain knowledge for Invoice Ninja — workflow patterns, data models, and gotchas for your AI agent.

Invoice Ninja

Invoice Ninja is an open-source invoicing and billing platform for freelancers and small businesses. Create and manage invoices, track payments, handle clients and projects, manage expenses, and automate billing workflows.

Data Model

  • Bank Transactions — bank transaction imports.
  • Clients — customers.
  • Credits — credit balances.
  • Expenses — expense records.
  • Invoices — invoices.
  • Payments — payment records.
  • Products — product catalog.
  • Projects — projects for time tracking.
  • Purchase Orders — purchase orders.
  • Quotes — quotes/estimates.
  • Recurring Expenses — recurring expense templates.
  • Recurring Invoices — recurring invoice templates.
  • Tasks — billable tasks.
  • Vendors — vendor records.

Gotchas

  • Self-hosted vs cloud: API base URL differs for self-hosted (your domain) vs cloud (invoicing.co).
  • Entity IDs: List endpoints return IDs; use them for fetch/detail calls.

Tools in this Server (24)

Fetch Bank Transactions

Discovered via endpoint probing with high confidence

Fetch Clients

Discovered via endpoint probing with high confidence

Fetch Credits

Discovered via endpoint probing with high confidence

Fetch Expenses

Discovered via endpoint probing with high confidence

Fetch Invoices

Discovered via endpoint probing with high confidence

Fetch Payments

Discovered via endpoint probing with high confidence

Fetch Products

Discovered via endpoint probing with high confidence

Fetch Projects

Discovered via endpoint probing with high confidence

Fetch Purchase Orders

Discovered via endpoint probing with high confidence

Fetch Quotes

Discovered via endpoint probing with high confidence

Invoiceninja List Bank Transactions

Collection endpoint, path_params=[]

Invoiceninja List Clients

Collection endpoint, path_params=[]

Invoiceninja List Credits

Collection endpoint, path_params=[]

Invoiceninja List Expenses

Collection endpoint, path_params=[]

Invoiceninja List Invoices

Collection endpoint, path_params=[]

Invoiceninja List Payments

Collection endpoint, path_params=[]

Invoiceninja List Products

Collection endpoint, path_params=[]

Invoiceninja List Projects

Collection endpoint, path_params=[]

Invoiceninja List Purchase Orders

Collection endpoint, path_params=[]

Invoiceninja List Quotes

Collection endpoint, path_params=[]

Invoiceninja List Recurring Expenses

Collection endpoint, path_params=[]

Invoiceninja List Recurring Invoices

Collection endpoint, path_params=[]

Invoiceninja List Tasks

Collection endpoint, path_params=[]

Invoiceninja List Vendors

Collection endpoint, path_params=[]

Frequently Asked Questions

What is the Invoice Ninja MCP server?

Invoice Ninja is an open-source invoicing and billing platform for freelancers and small businesses. Create and manage invoices, track payments, handle clients and projects, manage expenses, and automate billing workflows for streamlined financial operations. It provides 24 tools that AI agents can use through the Model Context Protocol (MCP).

How do I connect Invoice Ninja to my AI agent?

Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/invoiceninja. Authentication is handled automatically.

How many tools does Invoice Ninja provide?

Invoice Ninja provides 24 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.

What authentication does Invoice Ninja require?

Invoice Ninja uses API Key. Invoice Ninja requires credentials. Connect via MCPBundles and authentication is handled automatically.

Setup Instructions

Connect Invoice Ninja to any MCP client in minutes

MCP URL
https://mcp.mcpbundles.com/bundle/invoiceninja

One-click install:

The link prefills the Add custom connector dialog — you still review the values and click Add, then Connect to complete OAuth.

Or add manually

  1. Open claude.ai → Settings → Connectors.
  2. Click the + button and choose Add custom connector.
  3. Set Name to Invoice Ninja and paste the MCP URL into Remote MCP server URL.
  4. Click Add. Invoice Ninja will appear under Not connected — select it and click Connect to complete OAuth.
Name: Invoice Ninja
Remote MCP server URL: https://mcp.mcpbundles.com/bundle/invoiceninja
Authentication: OAuth

Custom connectors at claude.ai require a paid Claude plan (Pro, Max, Team, or Enterprise).

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Invoice Ninja MCP Server & Skill — 24 Tools