---
title: "App"
description: "Local-first visual environment for building and running AI workflows. Build agents visually, deploy anywhere, privacy by design."
canonical: https://docs.nodetool.ai/nodes/nodetool/workflows/app_node/app
markdown: https://docs.nodetool.ai/nodes/nodetool/workflows/app_node/app.md
product: NodeTool
source: https://github.com/nodetool-ai/nodetool/blob/main/docs/nodes/nodetool/workflows/app_node/app.md
---

# App

**Type:** `nodetool.workflows.app_node.App`

**Namespace:** `nodetool.workflows.app_node`

## Description

Run a mini app inside a workflow. Select an app to expose its inputs and outputs; streamed results pass through as they arrive.
    app, mini app, sub-workflow, reuse

## Properties

| Property | Type | Description | Default |
|----------|------|-------------|---------|
| app_id | `str` |  | `` |
| app_json | `dict` |  | `{}` |

## Outputs

_(none)_

## Related Nodes

Browse other nodes in the [nodetool.workflows.app_node](./) namespace.