---
title: "Overview"
slug: "overview"
updated: 2025-11-12T07:21:56Z
published: 2025-11-12T07:21:56Z
canonical: "docs.grassfish.com/overview"
---

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

# Overview

Grassfish's Ad Booking API allows you to interact with our web service to import bookings from an external system and convert them into DOOH bookings.

## How the Ad Booking API works

The Ad Booking API is a REST-based interface that allows you to efficiently manage external bookings through direct system-to-system integration.

- It enables seamless communication with our IXM system, expanding the possibilities for automated booking processing and improving workflow efficiency.
- The Ad Booking API is purpose-built for managing DOOH (Digital Out-of-Home) bookings. For other actions—such as uploading spots or creative assets—please use the [IXM One API](https://docs.grassfish.com/grassfish-api).

> [!TIP]
> System requirements
> 
> The Ad Booking API requires IXM One version 12.0 or later. If you have an earlier version, please contact us via [support@grassfish.com](mailto:support@grassfish.com).

## How to use the Ad Booking API

You can use the Ad Booking API to perform a variety of actions, such as:

- Retrieve a list of all existing bookings to get an overview.
- Create new bookings and submit them directly to our system.
- Delete bookings that are no longer needed.
- Change the booking status from a reservation to a confirmed order.
- Cancel reserved or ordered bookings that you don’t want to execute.
- Delete spots and all related bookings when they’re no longer needed.

### Learn more

Take a look at the following articles and our API reference for a complete list of all available endpoints and detailed descriptions of how to use them.

API means application programming interface. An API consist of multiple definitions and protocols for developing and integrating application software. An API is an interface that allows independent applications to communicate with each other and exchange data.