Invoice Ninja
Free open-source invoicing tool

How the flow runs
A native automation connects Invoice Ninja to calls, CRM and run history.
What the engine includes
No-code flows for Invoice Ninja: triggers, AI steps, CRM and history in Famulor.
Triggers
Calls, bookings, inbound webhooks, schedules and CRM events start the flow.
AI steps
Generate text, extract fields, branch and loop, inside the builder.
CRM & apps
Native CRM actions plus 1000+ connected apps on the automation platform.
Invoice Ninja, designed for AI agents.
Convert Invoice Ninja to agentic-first. Milian builds the automation workflow, connects it to your assistant, and runs it in the conversation or on a schedule.
AI-Native Automation
Milian turns your brief into a workflow and connects it to the right assistant.
Milian Missions
Run work now, during a conversation, or on a schedule. Milian uses your connected apps.
Agentic Payments
Agents read context, write data back, and complete the next process step themselves.

Available actions
Actions Famulor can run in Invoice Ninja from an automation run.

Check Task Existence
Verify if a Task Already Exists

Create Client
Creates a new client in InvoiceNinja.

Create Invoice
Creates an invoice in Invoice Ninja for billing purposes.

Create Recurring Invoice
Creates a recurring invoice in Invoice Ninja for billing purposes.

Create Task
Creates a task instance in Invoice Ninja for billing purposes.

Custom API Call
Make a custom API call to a specific endpoint

Get Client Details from e-mail
Gets the client details if they exist by e-mail.

Get Invoices
Gets data for invoices.

Get Report
Gets report data from InvoiceNinja.

Invoice Ninja
Free open-source invoicing tool

Perform Action on Recurring Invoice
Actions include: start, stop, send_now, restore, archive, delete.
Live in three steps
Connect Invoice Ninja in the automation platform.
01
Connect your Invoice Ninja account
OAuth, API key or MCP: credentials stay encrypted on the connection.
02
Build the automation
Wire triggers, AI steps and Invoice Ninja actions in the visual builder.
03
Test and activate
Dry-run against sample data, then activate. Every run lands in history.
Ready to connect Invoice Ninja to the native engine?
Start an automation run: triggers, AI steps, CRM and run history, plus 1000+ more apps.
Invoice Ninja FAQ
Frequently asked questions about the Invoice Ninja integration
Setup takes less than 5 minutes. Connect your Invoice Ninja account, configure your voice agent preferences, and start automating your phone calls immediately.


