> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chift.eu/llms.txt
> Use this file to discover all available pages before exploring further.

# Product

### Definition

In the Invoicing API, a product is an item or service that can appear on an invoice line. It holds a name, a description, a unit price, and optionally a default tax rate.

<Note>
  "Product" also exists in the [E-commerce API](/unified-apis/ecommerce/concepts/product) (an item listed in an online store) and the [POS API](/unified-apis/pos/concepts/product) (an item sold at a point of sale).
</Note>

### Purpose

Products standardize what appears on invoice lines. They avoid re-entering the same item details on every invoice.

### Relationships

* Referenced by invoice lines.
* Can have a default tax rate.

### Endpoints

#### Read

| Method | Endpoint                                                                          | Description                    |
| ------ | --------------------------------------------------------------------------------- | ------------------------------ |
| GET    | [Retrieve all products](/api-reference/endpoints/invoicing/retrieve-all-products) | Returns a list of all products |
| GET    | [Retrieve one product](/api-reference/endpoints/invoicing/retrieve-one-product)   | Returns a single product by ID |

#### Write

| Method | Endpoint                                                                | Description           |
| ------ | ----------------------------------------------------------------------- | --------------------- |
| POST   | [Create a product](/api-reference/endpoints/invoicing/create-a-product) | Creates a new product |

### See also

* [Invoices](/unified-apis/invoicing/concepts/invoice)
* [Taxes](/unified-apis/invoicing/concepts/tax)