---
title: "Integrations - Invoiceninja"
url: "https://docs.unified.to/integrations/invoiceninja"
description: "Build Invoice Ninja integrations faster with our Unified API — Accounting data, API key, real-time sync."
date: "2026-10-25T22:24:19.492Z"
updated: "2026-10-25T22:24:19.492Z"
---
![](https://api.unified.to/docs/images/invoiceninja.png)

# Invoice Ninja integration

[Back to integrations](https://docs.unified.to/integrations.md)

#### Overview

Company website:

<https://invoiceninja.com>

Integration launch date:

October 23, 2026

API Categories:

[Accounting](https://docs.unified.to/accounting/overview.md)[Passthrough](https://docs.unified.to/passthrough/overview.md)

API Authorization:

 API Token / Host

#### ACCOUNTING CONTACT

End-API object:

 client

Unified API Methods:

[List](https://docs.unified.to/accounting/contact/List%5Fall%5Fcontacts.md)[Get](https://docs.unified.to/accounting/contact/Retrieve%5Fa%5Fcontact.md)[Create](https://docs.unified.to/accounting/contact/Create%5Fa%5Fcontact.md)[Update](https://docs.unified.to/accounting/contact/Update%5Fa%5Fcontact.md)[Remove](https://docs.unified.to/accounting/contact/Remove%5Fa%5Fcontact.md)

List options:

limitoffset

Readable fields:

[balance\_amount](https://docs.unified.to/accounting/contact/model.md)[billing\_address](https://docs.unified.to/accounting/contact/model.md)[created\_at](https://docs.unified.to/accounting/contact/model.md)[emails](https://docs.unified.to/accounting/contact/model.md)[first\_name](https://docs.unified.to/accounting/contact/model.md)[id](https://docs.unified.to/accounting/contact/model.md)[identification](https://docs.unified.to/accounting/contact/model.md)[is\_active](https://docs.unified.to/accounting/contact/model.md)[is\_customer](https://docs.unified.to/accounting/contact/model.md)[is\_supplier](https://docs.unified.to/accounting/contact/model.md)[last\_name](https://docs.unified.to/accounting/contact/model.md)[name](https://docs.unified.to/accounting/contact/model.md)[notes](https://docs.unified.to/accounting/contact/model.md)[shipping\_address](https://docs.unified.to/accounting/contact/model.md)[tax\_number](https://docs.unified.to/accounting/contact/model.md)[telephones](https://docs.unified.to/accounting/contact/model.md)[updated\_at](https://docs.unified.to/accounting/contact/model.md)[website](https://docs.unified.to/accounting/contact/model.md)

Writable fields:

[name](https://docs.unified.to/accounting/contact/model.md)[billing\_address](https://docs.unified.to/accounting/contact/model.md)[emails](https://docs.unified.to/accounting/contact/model.md)[first\_name](https://docs.unified.to/accounting/contact/model.md)[identification](https://docs.unified.to/accounting/contact/model.md)[last\_name](https://docs.unified.to/accounting/contact/model.md)[notes](https://docs.unified.to/accounting/contact/model.md)[shipping\_address](https://docs.unified.to/accounting/contact/model.md)[tax\_number](https://docs.unified.to/accounting/contact/model.md)[telephones](https://docs.unified.to/accounting/contact/model.md)[website](https://docs.unified.to/accounting/contact/model.md)

 required fields 

#### ACCOUNTING INVOICE

End-API object:

 invoice

Unified API Methods:

[List](https://docs.unified.to/accounting/invoice/List%5Fall%5Finvoices.md)[Get](https://docs.unified.to/accounting/invoice/Retrieve%5Fan%5Finvoice.md)[Create](https://docs.unified.to/accounting/invoice/Create%5Fan%5Finvoice.md)[Update](https://docs.unified.to/accounting/invoice/Update%5Fan%5Finvoice.md)[Remove](https://docs.unified.to/accounting/invoice/Remove%5Fan%5Finvoice.md)

List options:

contact\_idlimitoffset

Readable fields:

[balance\_amount](https://docs.unified.to/accounting/invoice/model.md)[contact\_id](https://docs.unified.to/accounting/invoice/model.md)[discount\_amount](https://docs.unified.to/accounting/invoice/model.md)[due\_at](https://docs.unified.to/accounting/invoice/model.md)[id](https://docs.unified.to/accounting/invoice/model.md)[invoice\_number](https://docs.unified.to/accounting/invoice/model.md)[lineitems](https://docs.unified.to/accounting/invoice/model.md)[notes](https://docs.unified.to/accounting/invoice/model.md)[paid\_amount](https://docs.unified.to/accounting/invoice/model.md)[posted\_at](https://docs.unified.to/accounting/invoice/model.md)[status](https://docs.unified.to/accounting/invoice/model.md)[tax\_amount](https://docs.unified.to/accounting/invoice/model.md)[total\_amount](https://docs.unified.to/accounting/invoice/model.md)[type](https://docs.unified.to/accounting/invoice/model.md)[updated\_at](https://docs.unified.to/accounting/invoice/model.md)

Writable fields:

[contact\_id](https://docs.unified.to/accounting/invoice/model.md)[due\_at](https://docs.unified.to/accounting/invoice/model.md)[invoice\_number](https://docs.unified.to/accounting/invoice/model.md)[lineitems](https://docs.unified.to/accounting/invoice/model.md)[notes](https://docs.unified.to/accounting/invoice/model.md)[posted\_at](https://docs.unified.to/accounting/invoice/model.md)

 required fields 

#### ACCOUNTING TAXRATE

End-API object:

 taxrate

Unified API Methods:

[List](https://docs.unified.to/accounting/taxrate/List%5Fall%5Ftaxrates.md)[Get](https://docs.unified.to/accounting/taxrate/Retrieve%5Fa%5Ftaxrate.md)[Create](https://docs.unified.to/accounting/taxrate/Create%5Fa%5Ftaxrate.md)[Update](https://docs.unified.to/accounting/taxrate/Update%5Fa%5Ftaxrate.md)[Remove](https://docs.unified.to/accounting/taxrate/Remove%5Fa%5Ftaxrate.md)

List options:

limitoffset

Readable fields:

[id](https://docs.unified.to/accounting/taxrate/model.md)[is\_active](https://docs.unified.to/accounting/taxrate/model.md)[name](https://docs.unified.to/accounting/taxrate/model.md)[rate](https://docs.unified.to/accounting/taxrate/model.md)

Writable fields:

[name](https://docs.unified.to/accounting/taxrate/model.md)[rate](https://docs.unified.to/accounting/taxrate/model.md)

 required fields 

#### PASSTHROUGH

Unified API Methods:

[POST](https://docs.unified.to/passthrough/overview.md)[GET](https://docs.unified.to/passthrough/overview.md)[PUT](https://docs.unified.to/passthrough/overview.md)[DELETE](https://docs.unified.to/passthrough/overview.md)

List options:

\-none-

Readable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)

Writable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)