How do I connect my Invoice Ninja account?

You subscribe to the MCP on Vinkius and enter your Invoice Ninja Domain and API Token. Once connected, it is ready to use in any compatible client.

Which AI clients can I use with this MCP?

You can use this with any MCP-compatible client, including Claude, Cursor, and Windsurf.

Can I create new clients through my AI agent?

Yes, you can use the create_client capability to add new client profiles to your system via chat.

Is it possible to update existing invoices?

Yes, the update_invoice capability allows you to modify line items or change the status of an invoice.

Does this MCP handle tax calculations?

The MCP can fetch full tax math and raw total calculations for specific invoices to help you verify accuracy.

Can I create a new invoice draft through my agent?

Yes. Use the create_invoice capability 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 capability 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 capability 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.

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Connect Invoice Ninja Invoicing Billing to your AI

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Run your entire invoicing workflow through a simple chat interface.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 10 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through Invoice Ninja.

01
Delete client
This capability permanently removes a client from your registry.
02
Create client
This capability adds a new client to your Invoice Ninja account.
03
Create invoice
Use this to generate a new invoice for a specific client.
04
Delete invoice
This capability removes an invoice from your records.

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through Invoice Ninja.

05
Get client
This capability pulls the full profile and details for a single client.
06
Get invoice
This capability retrieves the specific details and line items of an invoice.
07
List clients
This capability returns a list of all clients in your system.

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through Invoice Ninja.

08
List invoices
This capability fetches a list of all invoices in your account.
09
Update client
This capability modifies an existing client's information using a JSON payload.
10
Update invoice
Use this to change invoice details, such as moving a bill from draft to sent.

Real work

What teams actually run

Quick Client Onboarding

Tell your agent to create a new client profile immediately after a contract is signed.

Invoice Status Checks

Ask your agent which clients have outstanding balances to prioritize follow-ups.

Billing Accuracy Audits

Have your agent pull specific invoice totals to verify that tax math is correct.

Workflow Automation

Update invoice statuses from draft to sent as soon as a project milestone is hit.

Automate a task

Put Invoice Ninja to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Invoice Ninja works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put Invoice Ninja to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

885ms average. Fast in production.

Invoice Ninja is checked daily against the live service.

Daily averagePeak 1003ms

Oct 3Today

Fastest day: 776ms
Slowest day: 1003ms
14-day trend: Slowing+11%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Invoice Ninja, so you can see the experience inside your AI.

It does not authenticate your account with Invoice Ninja. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Invoice Ninja Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_1ByoQ1z3gJCYaDByw2bpOQ4Of9jLYx9VnZXsuYRm/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — Invoice Ninja capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "invoice-ninja-invoicing-billing-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_1ByoQ1z3gJCYaDByw2bpOQ4Of9jLYx9VnZXsuYRm/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Invoice Ninja in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Invoice Ninja owners hand off.

This MCP is built for professionals who need to manage billing without constantly switching between their work environment and a web browser.

01
Small Business Owners
They use the agent to check client balances and outstanding invoices during the workday.
02
Freelancers
They draft and update invoices while staying inside their design or development capabilities.
03
Accountants
They use the agent to audit line items and tax calculations for financial integrity.

FAQ

Questions Invoice Ninja owners ask.

01
How do I connect my Invoice Ninja account?
You subscribe to the MCP on Vinkius and enter your Invoice Ninja Domain and API Token. Once connected, it is ready to use in any compatible client.
02
Which AI clients can I use with this MCP?
You can use this with any MCP-compatible client, including Claude, Cursor, and Windsurf.
03
Can I create new clients through my AI agent?
Yes, you can use the create_client capability to add new client profiles to your system via chat.
04
Is it possible to update existing invoices?
Yes, the update_invoice capability allows you to modify line items or change the status of an invoice.
05
Does this MCP handle tax calculations?
The MCP can fetch full tax math and raw total calculations for specific invoices to help you verify accuracy.
06
Can I create a new invoice draft through my agent?
Yes. Use the create_invoice capability 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.
07
How do I check a client's outstanding balance?
The get_client capability 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.
08
Can my agent list all unpaid invoices?
Absolutely. Use the list_invoices capability 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.

Explore

More in Productivity

Connect Invoice Ninja to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Delete client

Create client

Create invoice

Delete invoice

05-07

Get client

Get invoice

List clients

08-10

List invoices

Update client

Update invoice

What teams actually run

Quick Client Onboarding

Invoice Status Checks

Billing Accuracy Audits

Workflow Automation

Building your own app? The connector is yours to use.

Invoice Ninja Connector

Claude Desktop

Small Business Owners

Freelancers

Accountants

How do I connect my Invoice Ninja account?

Which AI clients can I use with this MCP?

Can I create new clients through my AI agent?

Is it possible to update existing invoices?

Does this MCP handle tax calculations?

Can I create a new invoice draft through my agent?

How do I check a client's outstanding balance?

Can my agent list all unpaid invoices?

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