# Developer API

Developer APIs empower any developer or team to build custom solutions and integrations. IS-Messenger’s Developer API allows users to take advantage of many core features in IS-Messenger, including automating messages, syncing CRMs and triggering Workflows.

### Getting Started <a href="#getting_started" id="getting_started"></a>

Developer API is only available for Business Plan and above.

**Step 1: Navigate to Integrations in Workspace Settings.**

From the **Settings** Module, navigate to the menu item, **Integrations**.

**Step 2: Navigate to Developer API**

From the list, search for Developer API and press **Edit**.

**Step 3: Add Access Token**

Press **Add Access Token** to add a new access token. This token is needed to access our API endpoints.

<figure><img src="https://3688769499-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Mbui1HRO4dGghy5ITOz%2Fuploads%2Fu88HYuQirU6JTgqIXLjV%2F1.gif?alt=media&#x26;token=064965d4-f8e0-40d5-8173-fd3dd98a633f" alt="gif showing how to use respond.io developer API"><figcaption></figcaption></figure>