What can you do with the Invoice Ninja integration?

LiveContext exposes 29 operations on Invoice Ninja, covering invoice, client, payment and credit. Common uses include CRM sync, Detail view and Client lookup.

LiveContext

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Invoice Ninja integration

Open-source invoicing and billing platform API. Create invoices, manage clients, track payments, and handle expenses. Build billing integrations, accounting sync, and financial management applications.

29 toolsAPI keyAPI docs

Connect Invoice Ninja How integrations work

Common Invoice Ninja use cases

CRM sync
Detail view
Client lookup
Time tracking
Invoice cleanup
Reconciliation
Error correction
Billable hours
Data management
Accounting sync

What you can do with Invoice Ninja

Each of these is one operation on one endpoint, available both as a workflow step and as a tool an AI agent can call on its own. Nothing bundles several operations into one action, so what a run did stays readable afterwards.

Most endpoints run on the free plan. A few, mainly the ones that publish on your behalf, need a paid plan.

Invoice, 8 operations

POSTbulk_invoices
Performs bulk actions on multiple invoices.
POSTcreate_invoice
Creates a new invoice with line items.
DELETEdelete_invoice
Deletes an invoice record.
GETdownload_invoice
Downloads an invoice as a PDF file.
POSTemail_invoice
Sends an invoice to the client via email.
GETget_invoice
Retrieves a single invoice by ID.
GETlist_invoices
Lists all invoices with filtering and sorting options.
PUTupdate_invoice
Updates an existing invoice.

Client, 5 operations

POSTcreate_client
Creates a new client with contacts and billing info.
DELETEdelete_client
Deletes a client record.
GETget_client
Retrieves a single client by ID.
GETlist_clients
Lists all clients with optional related data.
PUTupdate_client
Updates an existing client record.

Payment, 4 operations

POSTcreate_payment
Records a payment and allocates to invoices.
GETget_payment
Retrieves a single payment by ID.
GETlist_payments
Lists all payments with filtering options.
POSTrefund_payment
Refunds a payment, optionally specifying invoice allocations.

Credit, 2 operations

POSTcreate_credit
Creates a credit note for a client.
GETlist_credits
Lists all credits with filtering options.

Expense, 2 operations

POSTcreate_expense
Creates a new expense record.
GETlist_expenses
Lists all expenses with filtering options.

Product, 2 operations

POSTcreate_product
Creates a new product or service.
GETlist_products
Lists all products and services.

Quote, 2 operations

POSTcreate_quote
Creates a quote/estimate for a client.
GETlist_quotes
Lists all quotes/estimates with filtering options.

Recurring invoice, 2 operations

POSTcreate_recurring_invoice
Creates a recurring invoice with frequency and auto-bill settings.
GETlist_recurring_invoices
Lists all recurring invoices.

Task, 2 operations

POSTcreate_task
Creates a new task for time tracking.
GETlist_tasks
Lists all tasks with filtering options.

Use Invoice Ninja from Claude Code, Cursor or Codex

Connect Invoice Ninja in LiveContext, create an API key in Settings, then add the LiveContext MCP server to your client. Its Invoice Ninja operations become tools the client can call, next to every other integration you connected.

Claude Code

claude mcp add --transport http livecontext https://livecontext.ai/mcp --header "X-API-Key: YOUR_API_KEY"

Codex (~/.codex/config.toml)

[mcp_servers.livecontext]
url = "https://livecontext.ai/mcp"

[mcp_servers.livecontext.http_headers]
"X-API-Key" = "YOUR_API_KEY"

Cursor, Claude Desktop and other JSON configs

{
  "mcpServers": {
    "livecontext": {
      "type": "http",
      "url": "https://livecontext.ai/mcp",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Set up the MCP server step by step

How to connect Invoice Ninja

Create your workspace
Sign up free. Nothing to install.
Connect Invoice Ninja once
Add your Invoice Ninja connection in Settings. Every tool from this integration reuses it, and secrets are encrypted at rest and visible only to you.
Describe the job in chat
The workflow builds itself in front of you and picks the endpoints it needs. Drag the steps yourself on the canvas whenever you would rather be explicit.

Invoice Ninja integration FAQ

What can you do with the Invoice Ninja integration?: LiveContext exposes 29 operations on Invoice Ninja, covering invoice, client, payment and credit. Common uses include CRM sync, Detail view and Client lookup.