> For the complete documentation index, see [llms.txt](https://docs.simplio3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.simplio3d.com/api-reference/open-api/getting-started.md).

# Getting Started

Welcome to the Simplio3D API! This guide will help you start using our API efficiently with the help of our OpenAPI specification JSON file.

### Prerequisites

Before you begin, ensure you have:

* An API key from Simplio3D. You can obtain one by registering on our [developer portal](https://app.simplio3d.com/admin/profile/edit).

<figure><img src="/files/geYM65BXQx25o28Hh5PO" alt=""><figcaption><p>Generated API token</p></figcaption></figure>

* Familiarity with JSON and RESTful APIs.

### Step 1: Access the OpenAPI Specification

Access the OpenAPI specification JSON file from our [API documentation page](https://app.simplio3d.com/api/documentation/open). This file contains detailed information on all of our API endpoints, request parameters, and response structures.

### Step 2: Set Up Your Environment

1. **Choose a Programming Language**: Use your preferred language's HTTP client libraries (e.g., Python requests, Axios for JavaScript, etc.).

### Step 3: Make Your First API Call

1. **Authenticate**: Include your API key in the header of each request:

   ```http
   Authorization: Bearer YOUR_API_KEY
   ```