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

# API Quickstart

> Get started with the Opus Job Operator API

Before running your first job programmatically on the Opus platform, you need to ensure the following prerequisites are in place.

## Authentication & Base URL

All API requests must be made to the following base URL and include the `x-service-key` header for authentication.

* **Base URL:** `https://operator.opus.com`
* **Authentication Header:** `x-service-key: <your_service_key>`

## Obtaining Your API Key

The `x-service-key` is your unique, secret API key for authenticating your requests. Follow these steps to generate one:

<Steps>
  <Step title="Navigate to Organization Settings">
    In the Opus platform, click the **My Organization** tab at the top of the screen.
  </Step>

  <Step title="Open Settings">
    Click the **gear icon** next to your Organization's name to open its settings.
  </Step>

  <Step title="Access API Keys">
    From the settings menu on the left, select **API Keys**.
  </Step>

  <Step title="Generate New Key">
    Click the **+ Generate API Key** button.
  </Step>

  <Step title="Name Your Key">
    A modal will appear. You can enter an optional **Key Name** for your reference.
  </Step>

  <Step title="Generate and Copy">
    Click the **Generate Key** button. Your new `x-service-key` will be displayed.

    <Warning>
      **This is the only time the key will be shown.** You must copy this key immediately and store it in a secure location.
    </Warning>
  </Step>

  <Step title="Manage Your Keys">
    After creation, your key will be listed in the **API Keys** panel. Here you can see its name, creation date, expiration date, and an option to **Delete** the key.
  </Step>
</Steps>

## Finding Your Workflow ID

The `workflow_id` is the unique identifier for the specific workflow you want to trigger. This ID is found in the URL of your Opus environment.

You can find this ID in two common places:

<Tabs>
  <Tab title="From Workflow Details">
    Navigate to the **Workflows** tab in your Opus application, find your workflow, and click on it. The URL in your browser will show the ID.
  </Tab>

  <Tab title="From the Builder">
    Open your workflow in the Builder. The URL in your browser will also contain the ID.
  </Tab>
</Tabs>

In both cases, the URL will follow this pattern:

```
app.opus.com/app/workflow/{workflow_id_here}
```

<Info>
  For example, in the URL `app.opus.com/app/workflow/B9uGJfZ3CFwOdMKH`, the Workflow ID is `B9uGJfZ3CFwOdMKH`.
</Info>

## Next Steps

Once you have your API key and workflow ID, you're ready to start using the API:

<CardGroup cols={2}>
  <Card title="Get Workflow Schema" icon="diagram-project" href="/api-reference/jobs/get-workflow-details">
    Retrieve the input requirements for your workflow
  </Card>

  <Card title="Initiate Your First Job" icon="play" href="/api-reference/jobs/initiate-job">
    Create a new job instance
  </Card>
</CardGroup>