Build your first Dust App

Dust Apps are deprecated. Only Dust Apps created before October 2025 are accessible. The creation of new Dust Apps is deactivated. For building on top of Dust, see the Developer Platform.

Prerequisites

You need a Dust workspace and at least one model provider configured. Go to Providers from your main account page and set up OpenAI (or another supported provider) with a valid API key.

Step 1: Create a new app

Go to a Space, click Company Data (or another Space), then Apps, then New App. Give your app a short, memorable name (lowercase, no spaces).

Step 2: Add an input block

Click + Block and add an input block. The input block is the entry point to your app. Attach it to a dataset by clicking Create Dataset. In the dataset editor, define a schema matching the inputs your app expects (for example, currentCompany and currentCity as strings), then add a few example entries. These are used to test your app during design.

Step 3: Add an LLM block

Click + Block and add an llm block. Select your model provider and model. Write a prompt that references your input block using Tera templating:

Company: {{INPUT.currentCompany}}
City: {{INPUT.currentCity}}

Suggest three alternative companies to work at in the same city:

Step 4: Run your app

Click Run. The app executes once per dataset entry. Inspect each block’s outputs by clicking on them.

Step 5: Deploy by API

Once satisfied with your app, retrieve its API endpoint from the API panel. Pass inputs as JSON arguments. See the Developer Platform for authentication and API reference.

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Prerequisites

Step 1: Create a new app

Step 2: Add an input block

Step 3: Add an LLM block

Step 4: Run your app

Step 5: Deploy by API

​Prerequisites

​Step 1: Create a new app

​Step 2: Add an input block

​Step 3: Add an LLM block

​Step 4: Run your app

​Step 5: Deploy by API

​Related

Prerequisites

Step 1: Create a new app

Step 2: Add an input block

Step 3: Add an LLM block

Step 4: Run your app

Step 5: Deploy by API

Related