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

# API

> Connect Retrac to your tools with the REST API and workspace credentials.

The Retrac API lets you read and write inventory data programmatically — sync items from an ERP, pull on-hand balances for fulfillment, or automate nightly imports.

<Note>
  REST API access is available on **Business** plans and above. Create API keys under **Settings → API Keys**.
</Note>

<CardGroup cols={2}>
  <Card title="How to get your workspace ID" icon="folder" href="/help/article/how-to-get-workspace-id">
    Find the ID required for API requests
  </Card>

  <Card title="API keys" icon="key" href="/dashboard/api-keys/introduction">
    Create and manage keys for your integrations
  </Card>

  <Card title="API introduction" icon="book" href="/api-reference/introduction">
    Authentication, endpoints, and getting started
  </Card>

  <Card title="Authentication" icon="lock" href="/api-reference/authentication">
    How to authorize requests with your API key
  </Card>
</CardGroup>